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Security Assessment Aid

Guidelines for Cyber Security Roles

Identifier Revision Updated Applicability Priority Description
Chief Information Security Officer
0714 4 Sep-18 O P S TS Must A CISO is appointed to provide cyber security leadership for their organisation.
1478 0 Sep-18 O P S TS Should The CISO provides strategic-level guidance for their organisation’s cyber security program and ensures their organisation’s compliance with cyber security policy, standards, regulations and legislation.
System owners
1071 1 Sep-18 O P S TS Must Each system has a designated system owner.
1525 0 Sep-18 O P S TS Must System owners register each system with the system’s authorising officer.
0027 3 Sep-18 O P S TS Must System owners obtain authorisation to operate each system from the system’s authorising officer.
1526 0 Sep-18 O P S TS Must System owners monitor security risks and the effectiveness of security controls for each system.

Guidelines for Cyber Security Incidents

Identifier Revision Updated Applicability Priority Description
Detecting cyber security incidents
0576 6 Sep-18 O P S TS Must An intrusion detection and prevention strategy is developed and implemented that includes:
  • network-based intrusion detection and prevention
  • procedures and resources for maintaining detection signatures
  • procedures and resources for the analysis of event logs and real-time alerts
  • procedures and resources for responding to detected cyber security incidents
  • the frequency for review of intrusion detection and prevention procedures and resourcing.
0120 4 Sep-18 O P S TS Must Cyber security personnel have access to sufficient data sources and tools to ensure that any security alerts generated by systems are investigated and that systems and data sources are able to be searched for key indicators of compromise including but not limited to IP addresses, domains and file hashes.
Managing cyber security incidents
0125 3 Sep-18 O P S TS Should Cyber security incidents are recorded in a register with the following information:
  • the date the cyber security incident occurred
  • the date the cyber security incident was discovered
  • a description of the cyber security incident
  • any actions taken in response to the cyber security incident
  • to whom the cyber security incident was reported.
0133 1 Sep-18 O P S TS Must When a data spill occurs, information owners are advised and access to the information is restricted.
0917 6 Sep-18 O P S TS Should When malicious code is detected, the following steps are taken to handle the infection:
  • the infected system is isolated
  • all previously connected systems, including any media used in the period leading up to the infection, are scanned for signs of infection and isolated if necessary
  • antivirus software is used to remove the infection from infected systems and media
  • if possible, any previously infected system is restored from a known good backup or rebuilt.
0137 2 Sep-18 O P S TS Must Legal advice is sought before allowing targeted cyber intrusion activity to continue on a system for the purpose of collecting further information or evidence.
1213 1 Sep-18 O P S TS Should Post-incident analysis is performed for successful targeted cyber intrusions; this includes storing full network traffic for at least seven days after a targeted cyber intrusion.
0138 3 Sep-18 O P S TS Should The integrity of evidence gathered during an investigation is maintained by investigators recording all of their actions and ensuring raw audit trails are copied onto media for archiving.
Reporting cyber security incidents
0123 3 Sep-18 O P S TS Must Cyber security incidents are reported to an organisation’s CISO, or one of their delegates, as soon as possible after they occur or are discovered.
0141 3 Sep-18 O P S TS Must When organisations use outsourced information technology or cloud services, their service providers report all cyber security incidents to the organisation’s CISO, or one of their delegates, as soon as possible after they occur or are discovered.
0140 6 May-19 O P S TS Must Cyber security incidents are reported to the ACSC.

Guidelines for Outsourcing

Identifier Revision Updated Applicability Priority Description
Information technology and cloud services
0100 8 Sep-18 O P - - Must Commercial and government gateway and cloud services selected by the ACSC undergo a joint security assessment by ACSC and Information Security Registered Assessors Program assessors at least every two years.
1395 2 Sep-18 O P - - Must If using outsourced cloud services, only those listed on the ACSC’s Certified Cloud Services List are used.
1529 0 Sep-18 - - S TS Must If using outsourced cloud services for highly classified information, public clouds are not used.
1396 1 Sep-18 O P S TS Must If using an outsourced cloud service not listed on the ACSC’s Certified Cloud Services List, or for highly classified information, the ACSC is notified in writing at the earliest opportunity, and certainly before entering into or renewing a contract.
0873 5 Sep-18 O P S TS Must If using an outsourced information technology service, or cloud service not listed on the ACSC’s Certified Cloud Services List, a service provider whose systems are located in Australia is used.
0072 5 Sep-18 O P S TS Must Any security controls associated with the protection of information entrusted to a service provider are documented in contract provisions, a memorandum of understanding or an equivalent formal agreement between parties.
1073 3 Sep-18 O P S TS Must An organisation’s systems and information are not accessed or administered by a service provider from outside Australian borders unless a contractual arrangement exists between the organisation and the service provider to do so.
1451 1 Sep-18 O P S TS Should When entering into a contractual arrangement for outsourced information technology or cloud services, contractual ownership over an organisation’s data is explicitly retained.
1452 1 Sep-18 O P S TS Should A review of suppliers, including their country of origin, is performed before obtaining software, hardware or services to assess the potential increase to an organisation’s security risk profile.

Guidelines for Security Documentation

Identifier Revision Updated Applicability Priority Description
Development and maintenance of security documentation
0039 4 May-19 O P S TS Must A cyber security strategy is developed and implemented for the organisation.
0047 4 May-19 O P S TS Should Organisational-level security documentation is approved by the Chief Information Security Officer while system-specific security documentation is approved by the system’s authorising officer.
0888 5 May-19 O P S TS Should Security documentation is reviewed at least annually and includes a ‘current as at [date]’ or equivalent statement.
System-specific security documentation
0041 2 Sep-18 O P S TS Must Systems have a SSP that includes security controls from this document based on its classification, functionality and the technologies it is implementing with additional security controls included based on security risks identified during a security risk assessment.
0042 3 Sep-18 O P S TS Should Systems have SOPs that cover the following:
  • system administration and maintenance activities, such as managing backups and user accounts
  • software and hardware configuration changes, such as patches, updates and upgrades
  • the acquisition, support and disposal of assets
  • the labelling, registering and mustering of assets.
0043 3 Sep-18 O P S TS Must Systems have an IRP that covers the following:
  • guidelines on what constitutes a cyber security incident
  • the types of incidents likely to be encountered and the expected response to each type
  • how to report cyber security incidents, internally to the organisation and externally to the Australian Cyber Security Centre (ACSC)
  • other parties which need to be informed in the event of a cyber security incident
  • the authority, or authorities, responsible for investigating and responding to cyber security incidents
  • the criteria by which an investigation of a cyber security incident would be requested from a law enforcement agency, the ACSC or other relevant authority
  • the steps necessary to ensure the integrity of evidence relating to a cyber security incident
  • system contingency measures or a reference to such details if they are located in a separate document.

Guidelines for Physical Security

Identifier Revision Updated Applicability Priority Description
Facilities and systems
0810 4 Sep-18 O P S TS Must Any facility containing a system, including a deployable system, is certified and accredited to at least the sensitivity or classification of the system.
1053 2 Sep-18 O P S TS Must Servers and network devices are secured in server rooms or communications rooms that meet the requirements for a Security Zone or secure room suitable for their sensitivity or classification.
1530 0 Sep-18 O P S TS Must Servers and network devices are secured in lockable commercial cabinets or security containers suitable for their sensitivity or classification taking into account protection afforded by the Security Zone or secure room they reside in.
0813 3 Sep-18 O P S TS Must Server rooms, communications rooms and security containers are not left in unsecured states.
1074 2 Sep-18 O P S TS Must Keys or equivalent access mechanisms to server rooms, communications rooms and security containers are appropriately controlled.
0157 5 Sep-18 O P S TS Must Information communicated over network infrastructure in areas not authorised for the processing of such information is encrypted as if it was communicated through unsecured spaces.
1296 2 Sep-18 O P S TS Must Physical security controls are implemented to protect network devices, especially those in public areas, from physical damage or unauthorised access.
0164 2 Sep-18 O P S TS Should Unauthorised people are prevented from observing systems, in particular, workstation displays and keyboards.
ICT equipment and media
0336 3 Sep-18 O P S TS Must All ICT equipment and media are registered with a unique identifier in an appropriate register.
0159 4 Sep-18 O P S TS Must All ICT equipment and media are accounted for on a regular basis.
0161 5 Mar-19 O P S TS Must ICT equipment and media are secured when not in use.
Wireless devices and Radio Frequency transmitters
1543 0 Apr-19 - - S TS Should A register is maintained of authorised RF devices that can be used in SECRET and TOP SECRET areas.
0225 2 Sep-18 - - S TS Must Unauthorised RF devices are not brought into SECRET and TOP SECRET areas.
0829 4 Mar-19 - - S TS Should Security measures are used to detect and respond to unauthorised RF devices in SECRET and TOP SECRET areas.
1058 1 Sep-18 O P - - Should Bluetooth and wireless keyboards are not used unless in an RF screened building.
1155 1 Sep-18 - - S TS Must Bluetooth and wireless keyboards are not used unless in an RF screened building.
0222 2 Sep-18 O P - - Should When using infrared keyboards, infrared ports are positioned to prevent line of sight and reflected communications travelling into an unsecured space.
0223 4 Sep-18 - - S - Must When using infrared keyboards, the following activities are prevented:
  • line of sight and reflected communications travelling into unsecured spaces
  • multiple infrared keyboards for different systems being used in the same area
  • other infrared devices being used in the same area
  • infrared keyboards operating in areas with unprotected windows.
0224 4 Sep-18 - - - TS Must When using infrared keyboards, the following activities are prevented:
  • line of sight and reflected communications travelling into unsecured spaces
  • multiple infrared keyboards for different systems being used in the same area
  • other infrared devices being used in the same area
  • infrared keyboards operating in areas with windows that have not had a permanent method of blocking infrared transmissions applied to them.
0221 2 Sep-18 - - - TS Must Wireless RF pointing devices are not used in TOP SECRET areas unless used in an RF screened building.

Guidelines for Personnel Security

Identifier Revision Updated Applicability Priority Description
Cyber security awareness raising and training
0252 3 Sep-18 O P S TS Must Ongoing cyber security awareness raising and training is provided to personnel and includes:
  • the purpose of the awareness raising and training program
  • security appointments and contacts within the organisation
  • the use and protection of systems, applications, media and information
  • reporting of cyber security incidents and suspected compromises
  • not to introduce or use unauthorised ICT equipment, media or applications with systems
  • not to attempt to bypass, strain or test security controls on systems
  • not to attempt to gain unauthorised access to systems, applications or information.
0817 3 Sep-18 O P S TS Must Personnel are advised what suspicious contact is and how to report it, especially when using online services.
0820 4 Sep-18 O P S TS Must Personnel are advised to not post work information to non-approved online services and to report cases where such information is posted.
1146 2 Sep-18 O P S TS Must Personnel are advised to maintain separate work and personal accounts for online services.
0821 2 Sep-18 O P S TS Should Personnel are advised of security risks associated with posting personal information to online services and, where possible, to restrict access to only those they have authorised to view it.
0824 2 Sep-18 O P S TS Should Personnel are advised not to send or receive files via unauthorised online services.
Access to systems and their resources
0432 4 Sep-18 O P S TS Must Each system’s System Security Plan specifies any authorisations, security clearances and briefings necessary for system access.
0434 5 Sep-18 O P S TS Must Personnel undergo appropriate employment screening, and where necessary hold an appropriate security clearance, before being granted access to systems.
0435 2 Sep-18 O P S TS Must All personnel receive any necessary briefings before being granted access to systems.
0405 4 Sep-18 O P S TS Must Standard access to systems, applications and information is validated when first requested and revalidated on an annual or more frequent basis.
1503 0 Sep-18 O P S TS Must Standard access to systems, applications and information is limited to that required for personnel to undertake their duties.
0409 4 Sep-18 - - S TS Must Foreign nationals, including seconded foreign nationals, do not have access to systems that process, store or communicate AUSTEO information unless effective controls and procedures are in place to ensure such information is not accessible to them.
0411 4 Sep-18 - - S TS Must Foreign nationals, excluding seconded foreign nationals, do not have access to systems that process, store or communicate AGAO information unless effective controls and procedures are in place to ensure such information is not accessible to them.
0816 4 Apr-19 - P S TS Must Foreign nationals, including seconded foreign nationals, do not have access to systems that process, store or communicate information with nationality releasability markings unless effective controls and procedures are put in place to ensure information that is not marked as releasable to their nation is not accessible to them.
1507 0 Sep-18 O P S TS Must Privileged access to systems, applications and information is validated when first requested and revalidated on an annual or more frequent basis.
1508 0 Sep-18 O P S TS Must Privileged access to systems, applications and information is limited to that required for personnel to undertake their duties.
0445 6 Sep-18 O P S TS Must Privileged users are assigned a dedicated privileged account to be used solely for tasks requiring privileged access.
1509 0 Sep-18 O P S TS Must The use of privileged accounts, and any activities undertaken with them, are monitored and audited.
1175 3 Sep-18 O P S TS Must Technical security controls are used to prevent privileged users from reading emails, browsing the Web and obtaining files via online services.
0446 2 Sep-18 - - S TS Must Foreign nationals, including seconded foreign nationals, do not have privileged access to AUSTEO systems.
0447 2 Sep-18 - - S TS Must Foreign nationals, excluding seconded foreign nationals, do not have privileged access to AGAO systems.
0448 5 Sep-18 O P S TS Should Foreign nationals, excluding seconded foreign nationals, do not have privileged access to systems.
0430 5 Sep-18 O P S TS Must Access to systems, applications and information is removed or suspended on the same day a user no longer has a legitimate business requirement for access.
1404 1 Sep-18 O P S TS Should Access to systems, applications and information is removed or suspended after one month of inactivity.
0407 4 Sep-18 O P S TS Should A secure record is maintained for the life of each system covering:
  • all personnel authorised to access the system, and their user identification
  • who provided authorisation for access
  • when access was granted
  • the level of access that was granted
  • when access, and the level of access, was last reviewed
  • when the level of access was changed, and to what extent (if applicable)
  • when access was withdrawn (if applicable).
0441 5 Sep-18 O P S TS Must When personnel are granted temporary access to a system, effective security controls are in place to restrict their access to only information that is necessary to undertake their duties, or they are continually supervised by another user who has the appropriate security clearance to access the system.
0443 3 Sep-18 - - S TS Must Temporary access is not granted to systems that process, store or communicate caveated or sensitive compartmented information.
0078 4 Sep-18 - - S TS Must Systems processing, storing or communicating AUSTEO or AGAO information remain at all times under the control of an Australian national working for or on behalf of the Australian Government.
0854 4 Sep-18 - - S TS Must Access to AUSTEO or AGAO information from systems not under the sole control of the Australian Government is prevented.

Guidelines for Communications Infrastructure

Identifier Revision Updated Applicability Priority Description
Cable management
0181 2 Sep-18 O P S TS Must Cables are installed in accordance with the relevant Australian Standards, as directed by the Australian Communications and Media Authority (ACMA).
0926 5 Sep-18 O P S - Should The cable colours in the following table are used in non-TOP SECRET areas. (See source document for referenced table)
0186 4 Sep-18 O P S TS Must The cable colours in the following table are used in TOP SECRET areas. (See source document for referenced table)
0825 1 Sep-18 O P S - Should Cable colours for foreign systems installed in Australian facilities are not the same colour as those used for Australian systems.
0827 1 Sep-18 - - - TS Must Cable colours for foreign systems installed in Australian facilities are not the same colour as those used for Australian systems.
0826 1 Sep-18 O P S - Should Cable colours used for foreign systems are agreed between the host organisation and the foreign system’s owner.
0828 1 Sep-18 - - - TS Must Cable colours used for foreign systems are agreed between the host organisation and the foreign system’s owner.
1215 1 Sep-18 O P S - Must In non-TOP SECRET areas, cables with non-conformant cable colouring are banded with the appropriate colour at inspection points.
1216 1 Sep-18 O P S TS Must In TOP SECRET areas, cables with non-conformant cable colouring are both banded with the appropriate colour and labelled at inspection points.
1112 2 Sep-18 O P S TS Should In non-shared government facilities, cables are inspectable at a minimum of five-metre intervals.
1118 1 Sep-18 O P S - Should In non-TOP SECRET areas of shared government facilities, cables are inspectable at a minimum of five-metre intervals.
1119 1 Sep-18 O P S TS Should In TOP SECRET areas of shared government facilities, cables are fully inspectable for their entire length.
1126 1 Sep-18 O P S - Should In non-TOP SECRET areas of shared non-government facilities, cables are inspectable at a minimum of five-metre intervals.
0184 2 Sep-18 O P S TS Must In TOP SECRET areas of shared non-government facilities, cables are fully inspectable for their entire length.
0187 5 Sep-18 O P S TS Must The approved group combinations for cables in the following table are used. (See source document for referenced table)
1111 1 Sep-18 O P S TS Should In non-shared government facilities, fibre-optic cables are used for network infrastructure instead of copper cables.
1117 1 Sep-18 O P S TS Should In shared government facilities, fibre-optic cables are used for network infrastructure instead of copper cables.
1125 1 Sep-18 O P S - Should In non-TOP SECRET areas of shared non-government facilities, fibre-optic cables are used for network infrastructure instead of copper cables.
0182 2 Sep-18 O P S TS Must In TOP SECRET areas of shared non-government facilities, fibre-optic cables are used for network infrastructure instead of copper cables.
0189 2 Sep-18 O P S TS Must With fibre-optic cables, the fibres in the sheath only carry a single group.
0190 2 Sep-18 O P S TS Must If a fibre-optic cable contains subunits, each subunit only carries a single group; however, each subunit in the cable can carry a different group.
1114 1 Sep-18 O P S TS Should In non-shared government facilities, approved cable groups sharing a common reticulation system have a dividing partition or a visible gap between the differing cable groups.
1120 1 Sep-18 O P S TS Should In shared government facilities, approved cable groups sharing a common reticulation system have a dividing partition or a visible gap between the individual cable groups.
1127 1 Sep-18 O P S - Should In non-TOP SECRET areas of shared non-government facilities, approved cable groups sharing a common reticulation system have a dividing partition or a visible gap between the differing cable groups.
1128 1 Sep-18 O P S TS Must In TOP SECRET areas of shared non-government facilities, approved cable groups sharing a common reticulation system have a dividing partition or a visible gap between the differing cable groups.
1130 2 Sep-18 O P S - Should In non-TOP SECRET areas of shared non-government facilities, cables are run in an enclosed cable reticulation system.
1131 2 Sep-18 O P S TS Must In TOP SECRET areas of shared non-government facilities, cables are run in an enclosed cable reticulation system.
1164 1 Sep-18 O P S - Should In non-TOP SECRET areas of shared non-government facilities, conduits or the front covers of ducts, cable trays in floors and ceilings, and associated fittings are clear plastic.
1165 2 Sep-18 O P S TS Must In TOP SECRET areas of shared non-government facilities, conduits or the front covers of ducts, cable trays in floors and ceilings, and associated fittings are clear plastic.
0195 3 Sep-18 - - - TS Must In shared non-government facilities, uniquely identifiable SCEC endorsed tamper-evident seals are used to seal all removable covers on reticulation systems, including box section front covers, conduit inspection boxes, outlet and junction boxes, and T-pieces.
0194 2 Sep-18 - - - TS Must In shared non-government facilities, a visible smear of conduit glue is used to seal all plastic conduit joints and conduit runs connected by threaded lock nuts.
1102 1 Sep-18 O P S - Should In non-TOP SECRET areas, reticulation systems leading into cabinets are terminated as close as possible to the cabinet.
1101 1 Sep-18 O P S TS Should In TOP SECRET areas, reticulation systems leading into cabinets in a secure communications or server room are terminated as close as possible to the cabinet.
1103 1 Sep-18 O P S TS Must In TOP SECRET areas, reticulation systems leading into cabinets not in a secure communications or server room are terminated at the boundary of the cabinet.
1098 1 Sep-18 O P S - Should In non-TOP SECRET areas, cables are terminated in individual cabinets, or for small systems, one cabinet with a division plate to delineate classifications.
1099 1 Sep-18 O P S - Must In TOP SECRET areas, cables are terminated in individual cabinets, or for small systems, one cabinet with a division plate to delineate classifications.
1100 1 Sep-18 - - - TS Must TOP SECRET cables are terminated in an individual TOP SECRET cabinet.
1116 2 Sep-18 O P S TS Should In non-shared government facilities, there is a visible gap between TOP SECRET cabinets and cabinets of lower classifications.
1124 2 Sep-18 O P S TS Should In shared government facilities, there is a visible gap between TOP SECRET cabinets and cabinets of lower classifications.
1136 2 Sep-18 O P S TS Must In shared non-government facilities, there is a visible gap between TOP SECRET cabinets and cabinets of lower classifications.
1115 2 Sep-18 O P S TS Should In non-shared government facilities, cables from cable trays to wall outlets are run in flexible or plastic conduit.
1121 1 Sep-18 O P S TS Should In shared government facilities, cables from cable trays to wall outlets are run in flexible or plastic conduit.
1132 1 Sep-18 O P S TS Must In shared non-government facilities, cables from cable trays to wall outlets are run in flexible or plastic conduit.
1133 1 Sep-18 - - - TS Must In shared non-government facilities, cables are not run in a party wall.
1122 1 Sep-18 - - - TS Should In shared government facilities, where wall penetrations exit into a lower classified space, cables are encased in conduit with all gaps between the conduit and the wall filled with an appropriate sealing compound.
1134 1 Sep-18 - - - TS Must In shared non-government facilities, where wall penetrations exit into a lower classified space, cables are encased in conduit with all gaps between the conduit and the wall filled with an appropriate sealing compound.
1104 1 Sep-18 O P S - Must Cable groups sharing a wall outlet use fibre-optic cables and different connectors on opposite sides of the wall outlet for each group.
1105 1 Sep-18 O P S TS Must TOP SECRET cables do not share a wall outlet with cables of a lower classification.
1106 1 Sep-18 O P S TS Must The connectors for TOP SECRET systems are different from those of systems of lower classifications.
1107 1 Sep-18 O P S - Must Wall outlets are not coloured red.
1108 1 Sep-18 - - - TS Must Wall outlets are coloured red.
1109 1 Sep-18 O P S - Should In non-TOP SECRET areas, faceplates on wall outlets are clear plastic.
1110 1 Sep-18 O P S TS Must In TOP SECRET areas, faceplates on wall outlets are clear plastic.
0198 2 Sep-18 - - - TS Must When penetrating an audio secured space, ASIO is consulted and all directions provided are complied with.
1123 2 Sep-18 - - - TS Should In TOP SECRET areas of shared government facilities, a power distribution board with a feed from an Uninterruptible Power Supply is used to power all TOP SECRET ICT equipment.
1135 1 Sep-18 - - - TS Must In TOP SECRET areas of shared non-government facilities, a power distribution board with a feed from an Uninterruptible Power Supply is used to power all TOP SECRET ICT equipment.
Cable labelling and registration
0201 2 Sep-18 - - - TS Must Labels for TOP SECRET conduits are a minimum size of 2.5 cm x 1 cm, attached at 5 m intervals and marked as ‘TS RUN’.
0202 2 Sep-18 - - - TS Must Conduit labels in areas where uncleared personnel could frequently visit have red text on a clear background.
0203 2 Sep-18 - - - TS Must Conduit labels in areas that are not clearly observable have red text on a white background.
0204 2 Sep-18 O P S TS Should Conduit labels installed in public or visitor areas do not draw undue attention from people who do not have a need-to-know of the existence of such cables.
1095 1 Sep-18 O P S - Should Wall outlet boxes denote the classification, cable number and outlet number.
0205 2 Sep-18 - - - TS Must Wall outlet boxes denote the classification, cable number and outlet number.
0206 4 Sep-18 O P S TS Should Site conventions for labelling and registration of cables are documented in SOPs.
1096 1 Sep-18 O P S - Should Cables are labelled at each end with sufficient source and destination details to enable the physical identification and inspection of the cable.
0207 2 Sep-18 - - - TS Must Cables are labelled at each end with sufficient source and destination details to enable the physical identification and inspection of the cable.
0208 1 Sep-18 O P S - Should A cable register is maintained with the following information:
  • cable identification number
  • classification
  • source
  • destination
  • site/floor plan diagram
  • seal numbers (if applicable).
0210 2 Sep-18 - - - TS Must A cable register is maintained with the following information:
  • cable identification number
  • classification
  • source
  • destination
  • site/floor plan diagram
  • seal numbers (if applicable).
0211 3 Sep-18 O P S TS Should Cables are inspected for inconsistencies with the cable register in accordance with the frequency defined in a system’s System Security Plan.
Cable patching
0213 2 Sep-18 O P S TS Must Only approved cable groups terminate on a patch panel.
1093 2 Sep-18 O P S - Should In areas containing cables for systems of different classifications, connectors for each system are different from those of other systems; unless the higher classified patch cables cannot bridge the distance between the higher classified patch panel and any patch panel of a lower classification.
0214 3 Sep-18 O P S TS Must In areas containing cables for TOP SECRET systems and systems of lower classifications, the connectors for TOP SECRET systems are different from those of other systems.
1094 1 Sep-18 O P S - Should In areas containing cables for systems of different classifications, the selection of connector types is documented.
0215 3 Sep-18 O P S TS Must In areas containing cables for TOP SECRET systems and systems of lower classifications, the selection of connector types is documented.
0216 2 Sep-18 O P S TS Should TOP SECRET and non-TOP SECRET patch panels are physically separated by installing them in separate cabinets.
0217 4 Sep-18 O P S TS Must Where spatial constraints demand patch panels of lower classifications than TOP SECRET be located in the same cabinet as a TOP SECRET patch panel:
  • a physical barrier in the cabinet is provided to separate patch panels
  • only personnel holding a Positive Vetting security clearance have access to the cabinet
  • approval from the TOP SECRET system’s authorising officer is obtained prior to installation.
0218 3 Sep-18 - - - TS Should If fibre-optic fly leads exceeding five meters in length are used to connect wall outlets to ICT equipment, they are run in a protective and easily inspected pathway and clearly labelled at the ICT equipment end with the wall outlet’s designator.
Emanation security
0247 3 Sep-18 - - S TS Must System owners deploying systems with Radio Frequency (RF) transmitters inside or co-located with their facility contact the ACSC for an emanation security threat assessment and implement any additional installation criteria derived from the emanation security threat assessment.
0248 5 Sep-18 O P S - Must System owners deploying systems with RF transmitters that will be co-located with systems of a higher classification contact the ACSC for an emanation security threat assessment and implement any additional installation criteria derived from the emanation security threat assessment.
1137 2 Sep-18 - - - TS Must System owners deploying systems in shared facilities with non-Australian government entities contact the ACSC for an emanation security threat assessment and implement any additional installation criteria derived from the emanation security threat assessment.
0932 5 Sep-18 O P - - Should System owners deploying systems overseas contact the ACSC for emanation security threat advice and implement any additional installation criteria derived from the emanation security threat advice.
0249 3 Sep-18 - - S TS Must System owners deploying systems overseas contact the ACSC for an emanation security threat assessment and implement any additional installation criteria derived from the emanation security threat assessment.
0246 3 Sep-18 O P S TS Should An emanation security threat assessment is sought as early as possible in a project’s life cycle as emanation security controls can have significant cost implications.
0250 3 Sep-18 O P S TS Must ICT equipment in TOP SECRET areas meets industry and government standards relating to electromagnetic interference/electromagnetic compatibility.

Guidelines for Communications Systems

Identifier Revision Updated Applicability Priority Description
Telephone systems
1078 1 Sep-18 O P S TS Must A policy governing the use of telephone systems is developed and implemented.
0229 3 Sep-18 O P S TS Must Personnel are advised of the permitted sensitivity or classification of information that can be discussed over both internal and external telephone systems.
0230 3 Sep-18 O P S TS Should Personnel are advised of security risks posed by non-secure telephone systems in areas where sensitive or classified conversations can occur.
0231 1 Sep-18 O P S TS Should When permitting different levels of conversation for different kinds of connections, telephone systems give a visual indication of what kind of connection has been made.
0232 3 Sep-18 O P S TS Must Telephone systems used for sensitive or classified conversations encrypt all traffic that passes over external systems.
0233 3 Sep-18 O P S TS Must Cordless telephone systems are not used for sensitive or classified conversations.
0234 1 Sep-18 O P S TS Must Cordless telephone systems are not used in conjunction with secure telephony devices.
0235 3 Sep-18 O P S TS Must Speakerphones are not used on telephone systems in TOP SECRET areas unless the telephone system is located in a room rated as audio secure, the room is audio secure during conversations and only personnel involved in discussions are present in the room.
0236 4 Sep-18 O P - - Should In PROTECTED areas, off-hook audio protection features are used on all telephones that are not authorised for the transmission of PROTECTED information.
0931 4 Sep-18 O P S - Should In SECRET areas, push-to-talk handsets are used on all telephones that are not authorised for the transmission of SECRET information.
0237 3 Sep-18 O P S TS Must In TOP SECRET areas, push-to-talk handsets are used on all telephones that are not authorised for the transmission of TOP SECRET information.
Video conferencing and Internet Protocol telephony
0546 6 Sep-18 O P S TS Should Where a requirement exists to implement a firewall in a gateway, and video conferencing or IP telephony traffic passes through the gateway, a video or voice-aware firewall is used.
0547 3 Sep-18 O P S TS Should Video conferencing and IP telephony signalling and data is encrypted.
0548 3 Sep-18 O P S TS Should Video conferencing and IP telephony functions are established using secure signalling and data protocols.
0554 1 Sep-18 O P S TS Should An encrypted and non-replayable two-way authentication scheme is used for call authentication and authorisation.
0553 3 Sep-18 O P S TS Should Authentication and authorisation is used for all actions on a video conferencing network, including call setup and changing settings.
0555 2 Sep-18 O P S TS Should Authentication and authorisation is used for all actions on a IP telephony network, including registering a new IP phone, changing phone users, changing settings and accessing voicemail.
0551 5 Sep-18 O P - - Should IP telephony is configured such that:
  • IP phones authenticate themselves to the call controller upon registration
  • auto-registration is disabled and only a whitelist of authorised devices is allowed to access the network
  • unauthorised devices are blocked by default
  • all unused and prohibited functionality is disabled.
0552 5 Sep-18 - - S TS Must IP telephony is configured such that:
  • IP phones authenticate themselves to the call controller upon registration
  • auto-registration is disabled and only a whitelist of authorised devices is allowed to access the network
  • unauthorised devices are blocked by default
  • all unused and prohibited functionality is disabled.
1014 5 Sep-18 - - S TS Should Individual logins are used for IP phones.
0549 3 Sep-18 O P - - Should Video conferencing and IP telephony traffic is separated physically or logically from other data traffic.
0550 3 Sep-18 - - S TS Must Video conferencing and IP telephony traffic is separated physically or logically from other data traffic.
0556 4 Sep-18 O P - - Should Workstations are not connected to video conferencing units or IP phones unless the workstation or the device uses VLANs or similar mechanisms to maintain separation between video conferencing, IP telephony and other data traffic.
0557 4 Sep-18 - - S TS Must Workstations are not connected to video conferencing units or IP phones unless the workstation or the device uses VLANs or similar mechanisms to maintain separation between video conferencing, IP telephony and other data traffic.
1015 5 Sep-18 O P S TS Should Traditional analog phones are used in lobby and shared areas.
0558 4 Sep-18 O P S TS Should If IP phones are used in lobby and shared areas, their ability to access data networks, voicemail and directory services are prevented.
0559 4 Sep-18 O P S - Should Microphones (including headsets and USB handsets) and webcams are not used with non-SECRET workstations in SECRET areas.
1450 1 Sep-18 O P S TS Must Microphones (including headsets and USB handsets) and webcams are not used with non-TOP SECRET workstations in TOP SECRET areas.
1019 7 Sep-18 O P S TS Should A denial of service response plan is developed and implemented that includes:
  • how to identify signs of a denial of service
  • how to identify the source of a denial of service
  • how capabilities can be maintained during a denial of service
  • what actions can be taken to clear a denial of service.
Fax machines and multifunction devices
0588 2 Sep-18 O P S TS Must A policy governing the use of fax machines and MFDs is developed and implemented.
1092 2 Sep-18 O P S TS Must Separate fax machines or MFDs are used for sending sensitive or classified fax messages and all other fax messages.
0241 3 Sep-18 O P S TS Must When sending fax messages, the fax message is encrypted to an appropriate level to be communicated over unsecured telecommunications infrastructure or the PSTN.
1075 1 Sep-18 O P S TS Should The sender of a fax message makes arrangements for the receiver to collect the fax message as soon as possible after it is received and notify the sender if the fax message does not arrive in an agreed amount of time.
0245 4 Sep-18 O P S TS Must A direct connection from an MFD to a digital telephone system is not enabled unless the telephone system is authorised to operate at the same sensitivity or classification as the computer network to which the MFD is connected.
0590 4 Sep-18 O P S TS Should Where MFDs connected to computer networks have the ability to communicate via a gateway to another network:
  • each MFD applies user identification, authentication and audit functions for all information communicated by that device
  • security controls are of similar strength to those specified for workstations on that network
  • each gateway can identify and filter information in accordance with the security controls for the export of data via a gateway.
0589 4 Sep-18 O P S TS Must MFDs connected to computer networks are not used to copy documents above the sensitivity or classification of the connected network.
1036 3 Sep-18 O P S TS Should Fax machines and MFDs are located in areas where their use can be observed.

Guidelines for Enterprise Mobility

Identifier Revision Updated Applicability Priority Description
Mobile device management
1533 1 Apr-19 O P S TS Must A security policy governing the management of mobile devices is developed and implemented.
1195 1 Sep-18 O P S TS Should A Mobile Device Management solution is used to ensure mobile device management policy is applied to all mobile devices.
0687 5 Sep-18 - - - TS Must Mobile devices do not process, store or communicate TOP SECRET information unless explicitly approved by the ACSC to do so.
1399 2 Mar-19 O - - - Should Personnel accessing official information using a privately-owned mobile device use an ACSC approved platform, a security configuration in accordance with ACSC hardening guidance, and have enforced separation of official and personal information.
1400 1 Sep-18 - P - - Must Personnel accessing classified information using a privately-owned mobile device use an ACSC approved platform, a security configuration in accordance with ACSC hardening guidance, and have enforced separation of classified and personal information.
0694 4 Sep-18 - - S TS Must Privately-owned mobile devices do not access highly classified systems.
1297 1 Sep-18 O P S TS Must Prior to allowing privately-owned mobile devices to connect to an organisation’s systems, legal advice is sought.
1481 1 Mar-19 O - - - Should Personnel accessing official information using an organisation-owned mobile device use an ACSC approved platform with a security configuration in accordance with ACSC hardening guidance.
1482 0 Sep-18 - P S TS Must Personnel accessing classified information using an organisation-owned mobile device use an ACSC approved platform with a security configuration in accordance with ACSC hardening guidance.
0869 3 Sep-18 O P S TS Should All information on mobile devices is encrypted using at least an Australian Signals Directorate Approved Cryptographic Algorithm.
1085 2 Sep-18 O P S TS Must Mobile devices used to communicate sensitive or classified information over public network infrastructure use encryption approved for communicating such information over public network infrastructure.
1202 1 Sep-18 O P - - Should The range of Bluetooth communications between mobile devices and other Bluetooth devices is restricted to less than 10 metres by using class 2 or class 3 Bluetooth devices.
0682 4 Sep-18 - - S TS Must Bluetooth functionality is not enabled on highly classified mobile devices.
1196 1 Sep-18 O P - - Must Mobile devices are configured to remain undiscoverable to other Bluetooth devices except during Bluetooth pairing.
1200 3 Sep-18 O P - - Must Bluetooth pairing is performed using Bluetooth version 2.1 or later.
1198 1 Sep-18 O P - - Must Bluetooth pairing is performed in a manner such that connections are only made between intended Bluetooth devices.
1199 1 Sep-18 O P - - Should Bluetooth pairings are removed from mobile devices when there is no longer a requirement for their use.
0863 3 Sep-18 O P S TS Should Mobile devices prevent personnel from installing or uninstalling applications once provisioned.
0864 3 Apr-19 O P S TS Must Mobile devices prevent personnel from disabling or modifying security functions once provisioned.
1365 1 Sep-18 O P S TS Should Mobile carriers that are able to provide timely security updates for mobile devices are used.
1366 1 Sep-18 O P S TS Should Mobile devices are able to accept security updates from mobile carriers as soon as they become available.
0874 4 Sep-18 O P - - Should Web browsing from mobile devices is conducted through an organisation’s internet gateway rather than via a direct connection to the Internet.
0705 3 Sep-18 O P S TS Must When accessing an organisation system via a VPN connection, split tunnelling is disabled.
Mobile device usage
1082 1 Sep-18 O P S TS Must A policy governing the use of mobile devices is developed and implemented.
1083 2 Sep-18 O P S TS Must Personnel are advised of the sensitivity or classification permitted for voice and data communications when using mobile devices.
0240 5 Sep-18 O P S TS Must Paging, Multimedia Message Service, Short Message Service or instant messaging apps are not used to communicate sensitive or classified information.
0866 4 Apr-19 O P S TS Must Sensitive or classified information is not viewed or communicated in public locations unless care is taken to reduce the chance of conversations being overheard or the screen of a mobile device being observed.
1145 3 Sep-18 - - S TS Should Privacy filters are applied to the screens of highly classified mobile devices.
0871 3 Apr-19 O P S TS Must Mobile devices are kept under continual direct supervision when being actively used.
0870 3 Apr-19 O P S TS Must Mobile devices are carried or stored in a secured state when not being actively used.
1084 2 Sep-18 O P S TS Must If unable to apply encryption to mobile devices that is suitable for them to be carried through areas not authorised to process the information stored on them, they are physically transferred in a security briefcase or an approved multi-use satchel, pouch or transit bag.
0701 3 Sep-18 O P S TS Must Emergency sanitisation procedures are developed for mobile devices.
0702 3 Sep-18 - - S TS Must If a cryptographic zeroise or sanitise function is provided for cryptographic keys on highly classified mobile devices, the function is used as part of emergency sanitisation procedures.
1298 1 Sep-18 O P S TS Should User education and the implementation of security controls are conducted prior to personnel travelling overseas with mobile devices.
1087 1 Sep-18 O P S TS Must When travelling overseas with mobile devices and media, personnel retain control over them at all times, this includes by not placing them in checked-in luggage or leaving them unattended for any period of time.
1299 1 Sep-18 O P S TS Should Personnel take the following precautions when travelling overseas with mobile devices:
  • avoiding storing authentication details or tokens and passphrases with mobile devices
  • avoiding connecting to open Wi-Fi networks
  • clearing web browsers after each browsing session including history, cache, cookies and temporary files
  • encrypting emails where possible
  • ensuring login pages are encrypted before entering passphrases
  • avoiding connecting to untrusted computers or inserting removable media.
1088 3 Sep-18 O P S TS Must If personnel are requested to decrypt mobile devices for inspection by customs personnel, or their devices leave their possession at any time, they report the potential compromise of information to their organisation as soon as possible.
1300 3 Apr-19 O P S TS Should If upon returning from overseas mobile devices are suspected of being compromised, the devices and all passphrases for accounts associated with the devices are reset.

Guidelines for Evaluated Products

Identifier Revision Updated Applicability Priority Description
Evaluated product acquisition
0280 6 Sep-18 O P S TS Should If procuring an evaluated product, a product that has completed a protection profile evaluation is selected in preference to one that has completed an EAL-based evaluation.
0285 1 Sep-18 O P S TS Should Evaluated products are delivered in a manner consistent with any delivery procedures defined in associated evaluation documentation.
0286 5 Sep-18 O P S TS Must When procuring high assurance ICT equipment, the ACSC is contacted for any equipment-specific delivery procedures.
Evaluated product usage
0289 2 Sep-18 O P S TS Should Evaluated products are installed, configured, administered and operated in accordance with vendor guidance and evaluation documentation.
0290 5 Sep-18 O P S TS Must High assurance ICT equipment is installed, configured, administered and operated in accordance with guidance produced by the ACSC.
0292 5 Sep-18 O P S TS Must High assurance ICT equipment is only operated in an evaluated configuration.

Guidelines for ICT Equipment Management

Identifier Revision Updated Applicability Priority Description
ICT equipment usage
0293 4 Sep-18 O P S TS Must ICT equipment is classified based on the highest sensitivity or classification of information that it is approved for processing, storing or communicating.
0294 4 Sep-18 O P S TS Must ICT equipment, with the exception of high assurance ICT equipment, is labelled with protective markings reflecting its sensitivity or classification.
0296 4 Sep-18 O P S TS Must The Australian Cyber Security Centre (ACSC)’s approval is sought before applying labels to external surfaces of high assurance ICT equipment.
ICT equipment maintenance and repairs
0305 4 Sep-18 O P S TS Should Where possible, maintenance and repairs of ICT equipment is carried out on-site by an appropriately cleared technician.
1079 4 Sep-18 O P S TS Must The ACSC’s approval is sought before undertaking any repairs to high assurance ICT equipment.
0307 2 Sep-18 O P S TS Should If an uncleared technician is used to undertake maintenance or repairs of ICT equipment, the ICT equipment and associated media is sanitised before maintenance or repair work is undertaken.
0306 4 Sep-18 O P S TS Must If an uncleared technician is used to undertake maintenance or repairs of ICT equipment, the technician is escorted by someone who:
  • is appropriately cleared and briefed
  • takes due care to ensure that information is not disclosed
  • takes all responsible measures to ensure the integrity of the ICT equipment
  • has the authority to direct the technician
  • is sufficiently familiar with the ICT equipment to understand the work being performed.
0310 4 Sep-18 O P S TS Must ICT equipment maintained or repaired off-site is done so in accordance with the physical transfer and storage requirements for the sensitivity or classification of the ICT equipment.
0944 4 Sep-18 O P S TS Should ICT equipment maintained or repaired off-site is treated as per the requirements for the sensitivity or classification of the area that the ICT equipment will be returned to.
ICT equipment sanitisation and disposal
0313 3 Sep-18 O P S TS Must Procedures for the sanitisation and disposal of ICT equipment are developed and implemented.
0311 5 Sep-18 O P S TS Must When disposing of ICT equipment containing media, the ICT equipment is sanitised by sanitising the media within the ICT equipment, removing the media from the ICT equipment or destroying the ICT equipment in its entirety.
1217 1 Sep-18 O P S TS Must Labels and markings indicating the classification, codewords, caveats, owner, system, network, or any other marking that can associate the ICT equipment with its original use, are removed prior to disposal.
0316 2 Sep-18 O P S TS Must Following sanitisation, destruction or declassification, a formal administrative decision is made to handle ICT equipment, or its waste, as ‘publicly releasable’ before it is released into the public domain.
0315 5 Sep-18 O P S TS Must If disposing of high assurance ICT equipment or TEMPEST-rated ICT equipment, the ACSC is contacted for requirements relating to its secure disposal.
1218 1 Sep-18 - - S TS Should ICT equipment, including associated media, that is located overseas and has processed or stored AUSTEO or AGAO information is sanitised in situ where possible.
0312 4 Sep-18 - - S TS Must ICT equipment, including associated media, that is located overseas and has processed or stored AUSTEO or AGAO information that cannot be sanitised in situ is returned to Australia for destruction.
0317 3 Sep-18 O P S TS Must At least three pages of random text with no blank areas are printed on each colour printer cartridge or MFD print drum.
1219 1 Sep-18 O P S TS Must MFD print drums and image transfer rollers are inspected and destroyed if there is remnant toner which cannot be removed or if a print is visible on the image transfer roller.
1220 1 Sep-18 O P S TS Must Printer and MFD platens are inspected and destroyed if any images are retained on the platen.
1221 1 Sep-18 O P S TS Must Printers and MFDs are checked to ensure no pages are trapped in the paper path due to a paper jam.
0318 3 Sep-18 O P S TS Must When unable to sanitise printer cartridges or MFD print drums, they are destroyed as per electrostatic memory devices.
1534 0 Sep-18 O P S TS Must Printer ribbons in printers and MFDs are removed and destroyed.
1076 2 Sep-18 O P S TS Must Televisions and computer monitors with minor burn-in or image persistence are sanitised by displaying a solid white image on the screen for an extended period of time.
1222 1 Sep-18 O P S TS Must Televisions and computer monitors that cannot be sanitised are destroyed.
1223 3 Mar-19 O P S TS Must Memory in network devices is sanitised using the following processes, in order of preference:
  • following device-specific guidance provided by the ACSC
  • following vendor sanitisation guidance
  • if guidance is unavailable, performing a full reset and loading of a dummy configuration file.
1225 2 Sep-18 O P S TS Should The paper tray of the fax machine is removed, and a fax message with a minimum length of four pages is transmitted, before the paper tray is re-installed to allow a fax summary page to be printed.
1226 2 Sep-18 O P S TS Must Fax machines are checked to ensure no pages are trapped in the paper path due to a paper jam.

Guidelines for Media Management

Identifier Revision Updated Applicability Priority Description
Media usage
1359 2 Apr-19 O P S TS Should A removable media security policy is developed and implemented that includes:
  • details of the removable media authority within the organisation
  • types of media permitted within the organisation
  • processes for media registration and auditing
  • processes for media classification and labelling
  • processes for the use of media for data transfers
  • processes for the sanitisation/destruction and disposal of media.
0323 5 Feb-19 O P S TS Must Media is classified to the highest sensitivity or classification of information stored on the media.
0325 5 Mar-19 O P S TS Must Any media connected to a system is classified as the same sensitivity or classification as the system, unless the media is read-only, the media is inserted into a read-only device or the system has a mechanism through which read-only access can be ensured.
0331 5 Sep-18 O P S TS Must Media is reclassified if information copied onto the media is of a higher sensitivity or classification than the information already on the media, or information stored on the media is subject to a classification upgrade.
0330 3 Sep-18 O P S TS Must If reclassifying media to a lower sensitivity or classification, the reclassification of all information on the media has been approved by the originator, or the media has been appropriately sanitised/destroyed and a formal administrative decision has been made to reclassify it.
0332 4 Sep-18 O P S TS Must Media, with the exception of internally mounted fixed media within ICT equipment, is labelled with protective markings reflecting its sensitivity or classification.
0337 4 Sep-18 O P S TS Must Media is not used with systems that are not authorised to process, store or communicate the sensitivity or classification of information on it.
0341 3 Sep-18 O P S TS Must Any automatic execution features for media are disabled in the operating system of systems.
0342 5 Sep-18 O P S TS Must Unauthorised media is prevented from connecting to systems via the use of device access control software, disabling connection ports, or by physical means.
0343 4 Sep-18 O P S TS Should Media is prevented from being written to via the use of device access control software if there is no business requirement for its use.
0345 4 Sep-18 O P S TS Must External interface connections that allow DMA are disabled.
0831 5 Sep-18 O P S TS Must Media is handled in a manner suitable for its sensitivity or classification.
1059 3 Sep-18 O P S TS Must Media is encrypted with at least an Australian Signals Directorate Approved Cryptographic Algorithm.
0347 4 Sep-18 O P S TS Should When transferring data manually between two systems belonging to different security domains, write-once media is used.
Media sanitisation
0348 2 Sep-18 O P S TS Must Procedures for the sanitisation of media are developed and implemented.
0351 5 Sep-18 O P - - Must Volatile media is sanitised by removing power from the media for at least 10 minutes or by overwriting all locations on the media with a random pattern followed by a read back for verification.
0352 3 Sep-18 - - S TS Must Volatile media is sanitised by overwriting the media at least once in its entirety with a random pattern, followed by a read back for verification, and then followed by removing power from the media for at least 10 minutes.
0835 3 Sep-18 - - - TS Must Following sanitisation, highly classified volatile media retains its classification if it stored static data for an extended period of time, or had data repeatedly stored on or written to the same memory location for an extended period of time.
1065 2 Sep-18 O P S TS Should The host-protected area and device configuration overlay table of non-volatile magnetic media is reset prior to sanitisation.
0354 5 Sep-18 O P S TS Must Non-volatile magnetic media is sanitised by booting from separate media to the media being sanitised and then overwriting the media at least once (or three times if pre-2001 or under 15 Gigabytes) in its entirety with a random pattern followed by a read back for verification.
1067 3 Sep-18 O P S TS Should The ATA secure erase command is used where available, in addition to using block overwriting software, to ensure the growth defects table (g-list) is overwritten.
0356 5 Sep-18 - - S TS Must Following sanitisation, highly classified non-volatile magnetic media retains its classification.
0357 4 Sep-18 O P S TS Must Non-volatile EPROM media is sanitised by erasing the media in accordance with the manufacturer’s specification, increasing the specified ultraviolet erasure time by a factor of three, then overwriting the media at least once in its entirety with a random pattern followed by a read back for verification.
0836 2 Sep-18 O P S TS Must Non-volatile EEPROM media is sanitised by overwriting the media at least once in its entirety with a random pattern followed by a read back for verification.
0358 5 Sep-18 - - S TS Must Following sanitisation, highly classified non-volatile EPROM and EEPROM media retains its classification.
0359 3 Sep-18 O P S TS Must Non-volatile flash memory media is sanitised by overwriting the media at least twice in its entirety with a random pattern followed by a read back for verification.
0360 5 Sep-18 - - S TS Must Following sanitisation, highly classified non-volatile flash memory media retains its classification.
0947 4 Sep-18 O P S TS Should All media is sanitised prior to reuse.
1464 1 Sep-18 O P S TS Must Where a consumer guide for evaluated encryption software exists, the sanitisation and post-sanitisation requirements stated in the consumer guide are followed.
Media destruction
0363 1 Sep-18 O P S TS Must Procedures for the destruction of media are developed and implemented.
0350 4 Sep-18 O P S TS Must The following media types are destroyed prior to disposal as they cannot be sanitised:
  • microfiche and microfilm
  • optical discs
  • programmable read-only memory
  • read-only memory
  • other types of media that cannot be sanitised
  • faulty media that cannot be successfully sanitised.
1361 1 Sep-18 O P S TS Should SCEC or ASIO approved equipment is used when destroying media.
1160 1 Sep-18 O P S TS Must If using degaussers to destroy media, degaussers evaluated by the United States’ National Security Agency or certified by the United Kingdom’s National Cyber Security Centre are used.
1517 0 Sep-18 O P S TS Must Equipment that is capable of reducing microform to a fine powder, with resultant particles not showing more than five consecutive characters per particle upon microscopic inspection, is used to destroy microfiche and microfilm.
0366 2 Sep-18 O P S TS Must One of the methods in the following table is used to destroy media. (See source document for referenced table)
0368 6 Sep-18 O P S TS Must The resulting waste for all destruction methods, except for furnace/incinerator and degausser, is stored and handled as per the following table. (See source document for referenced table)
0361 3 Sep-18 O P S TS Must A degausser of sufficient field strength for the coercivity of the magnetic media is used, with the field strength being checked at regular intervals.
0838 2 Sep-18 O P S TS Must A degausser capable of the magnetic orientation (longitudinal or perpendicular) of the magnetic media is used.
0362 3 Sep-18 O P S TS Must Any product-specific directions provided by degausser manufacturers are followed.
0370 4 Sep-18 O P S TS Must The destruction of media is performed under the supervision of at least one person cleared to the sensitivity or classification of the media being destroyed.
0371 3 Sep-18 O P S TS Must Personnel supervising the destruction of media supervise the handling of the media to the point of destruction and ensure that the destruction is completed successfully.
0372 4 Sep-18 O P S TS Must The destruction of accountable material is performed under the supervision of at least two personnel cleared to the sensitivity or classification of the media being destroyed.
0373 3 Sep-18 O P S TS Must Personnel supervising the destruction of accountable media supervise the handling of the material to the point of destruction, ensure that the destruction is completed successfully and sign a destruction certificate afterwards.
0840 3 Sep-18 O P S - Must When outsourcing the destruction of media to an external destruction service, a National Association for Information Destruction AAA certified destruction service with endorsements, as specified in ASIO’s PSC-167, is used.
0839 2 Sep-18 O P S TS Should The destruction of TOP SECRET media or accountable material is not outsourced.
1069 2 Sep-18 O P S TS Should If possible, media is sanitised prior to transportation to an off-site location for destruction.
Media disposal
0374 1 Sep-18 O P S TS Must Procedures for the disposal of media are developed and implemented.
0375 3 Sep-18 O P S TS Must Following sanitisation, destruction or declassification, a formal administrative decision is made to handle media, or its waste, as ‘publicly releasable’ before it is released into the public domain.
0378 3 Sep-18 O P S TS Must Labels and markings indicating the classification, codewords, caveats, owner, system, network, or any other marking that can associate media with its original use, are removed prior to disposal.

Guidelines for System Hardening

Identifier Revision Updated Applicability Priority Description
Operating system hardening
1407 3 Sep-18 O P S TS Should The latest version (N), or N-1 version, of an operating system is used for Standard Operating Environments (SOEs).
1408 3 Sep-18 O P S TS Should When developing a Microsoft Windows SOE, the 64-bit version of the operating system is used.
1409 1 Sep-18 O P S TS Should ACSC and vendor guidance is implemented to assist in hardening the configuration of operating systems.
0383 6 Sep-18 O P S TS Must Default operating system accounts are disabled, renamed or have their passphrase changed.
0380 7 Sep-18 O P S TS Should Unneeded operating system accounts, software, components, services and functionality are removed or disabled.
1491 0 Sep-18 O P S TS Should Standard users are prevented from running all script execution engines shipped with Microsoft Windows including Windows Script Host (cscript.exe and wscript.exe), powershell.exe, powershell_ise.exe, cmd.exe, wmic.exe and Microsoft HTML Application Host (mshta.exe).
1410 1 Sep-18 O P S TS Must Local administrator accounts are disabled; alternatively, passphrases that are random and unique for each device’s local administrator account are used.
1469 1 Sep-18 O P S TS Must Unique domain accounts with local administrative privileges, but without domain administrative privileges, are used for workstation and server management.
0382 5 Sep-18 O P S TS Must Users do not have the ability to install, uninstall or disable software.
0843 7 Sep-18 O P S TS Must An application whitelisting solution is implemented on all workstations to restrict the execution of executables, software libraries, scripts and installers to an approved set.
1490 1 Jul-19 O P S TS Must An application whitelisting solution is implemented on all servers to restrict the execution of executables, software libraries, scripts and installers to an approved set.
0955 5 Sep-18 O P S TS Must Application whitelisting is implemented using cryptographic hash rules, publisher certificate rules or path rules.
1471 1 Sep-18 O P S TS Must When implementing application whitelisting using publisher certificate rules, both publisher names and product names are used.
1392 1 Sep-18 O P S TS Must When implementing application whitelisting using path rules, file system permissions are configured to prevent unauthorised modification of folder and file permissions, folder contents (including adding new files) and individual files that are approved to execute.
1544 0 Jul-19 O P S TS Must Microsoft’s latest recommended block rules are implemented to prevent application whitelisting bypasses.
0846 6 Sep-18 O P S TS Must All users (with the exception of privileged users when performing specific administrative activities) cannot disable, bypass or be exempted from application whitelisting mechanisms.
0957 5 Sep-18 O P S TS Should Application whitelisting solutions are configured to generate event logs for failed execution attempts, including information such as the name of the blocked file, the date/time stamp and the username of the user attempting to execute the file.
1414 1 Sep-18 O P S TS Must If supported, the latest version of Microsoft’s EMET is implemented on workstations and servers and configured with both operating system mitigation measures and application-specific mitigation measures.
1492 0 Sep-18 O P S TS Must If supported, Microsoft's 'Exploit protection' functionality is implemented on workstations and servers.
1341 2 Sep-18 O P S TS Should A HIPS is implemented on workstations.
1034 6 Sep-18 O P S TS Must A HIPS is implemented on high value servers such as authentication servers, Domain Name System (DNS) servers, web servers, file servers and email servers.
1416 2 Sep-18 O P S TS Must A software firewall is implemented on workstations and servers to limit both inbound and outbound network connections.
1417 2 Sep-18 O P S TS Must Antivirus software is implemented on workstations and servers and configured with:
  • signature-based detection enabled and set to a high level
  • heuristic-based detection enabled and set to a high level
  • detection signatures checked for currency and updated on at least a daily basis
  • automatic and regular scanning configured for all fixed disks and removable media.
1390 2 Sep-18 O P - - Should Antivirus software has reputation rating functionality enabled.
1418 1 Sep-18 O P S TS Must Endpoint device control software is implemented on workstations and servers to prevent unauthorised devices from being used.
Application hardening
0938 4 Sep-18 O P S TS Should Applications are chosen from vendors that have made a commitment to secure development and maintenance practices.
1467 1 Sep-18 O P S TS Should The latest releases of key business applications such as office productivity suites, PDF viewers, web browsers, common web browser plugins, email clients and software platforms are used when present within SOEs.
1483 0 Sep-18 O P S TS Should The latest releases of web server software, server applications that store important data, and other internet-accessible server applications are used when present within SOEs.
1412 2 Feb-19 O P S TS Should ACSC and vendor guidance is implemented to assist in hardening the configuration of Microsoft Office, web browsers and PDF viewers.
1484 1 Jan-19 O P S TS Must Web browsers are configured to block or disable support for Flash content.
1485 0 Sep-18 O P S TS Must Web browsers are configured to block web advertisements.
1486 0 Sep-18 O P S TS Must Web browsers are configured to block Java from the Internet.
1541 0 Jan-19 O P S TS Must Microsoft Office is configured to disable support for Flash content.
1542 0 Jan-19 O P S TS Must Microsoft Office is configured to prevent activation of Object Linking and Embedding packages.
1470 3 Mar-19 O P S TS Should Any unrequired functionality in Microsoft Office, web browsers and PDF viewers is disabled.
1235 2 Apr-19 O P S TS Should The use of Microsoft Office, web browser and PDF viewer add-ons is restricted to organisation approved add-ons.
1487 0 Sep-18 O P S TS Must Microsoft Office macros are only allowed to execute in documents from Trusted Locations where write access is limited to personnel whose role is to vet and approve macros.
1488 0 Sep-18 O P S TS Must Microsoft Office macros in documents originating from the Internet are blocked.
1489 0 Sep-18 O P S TS Must Microsoft Office macro security settings cannot be changed by users.
System access
0414 3 Sep-18 O P S TS Must All users are uniquely identifiable and authenticated on each occasion that access is granted to a system.
1538 0 Sep-18 - P S TS Must Where systems contain nationality releasability information, all users who are foreign nationals, including seconded foreign nationals, are uniquely identifiable.
0420 7 Sep-18 - - S TS Must Where systems contain AUSTEO or AGAO information, all users who are foreign nationals, including seconded foreign nationals, are uniquely identifiable.
0975 6 Sep-18 O P S TS Should Security controls used to identify users who are foreign nationals, including seconded foreign nationals, include identification measures that specify their nationality.
0415 2 Sep-18 O P S TS Must The use of shared user accounts is controlled and auditable.
0417 4 Sep-18 O P S TS Must A numerical password is not used as the sole method of authenticating a user.
0421 5 Sep-18 O P S - Must Passphrases used as the sole method of authentication enforce a minimum of 13 alphabetic characters; or a minimum of 10 characters consisting of at least three of the following character sets:
  • lowercase alphabetic characters (a-z)
  • uppercase alphabetic characters (A-Z)
  • numeric characters (0-9)
  • special characters.
0422 5 Sep-18 - - - TS Must Passphrases used as the sole method of authentication enforce a minimum of 15 alphabetic characters; or a minimum of 11 characters consisting of at least three of the following character sets:
  • lowercase alphabetic characters (a-z)
  • uppercase alphabetic characters (A-Z)
  • numeric characters (0-9)
  • special characters.
0423 3 Sep-18 O P S TS Must Passphrase management practices:
  • ensure that passphrases are changed at least every 90 days
  • prevent passphrases from being changed by a user more than once a day
  • prevent passphrases from being reused within eight passphrase changes
  • prevent the use of sequential passphrases where possible
  • prevent passphrases being stored in cleartext.
1426 1 Sep-18 O P S TS Must When systems cannot be configured to enforce passphrase complexity and management practices, passphrases are checked by alternative means for compliance with passphrase policies.
0974 5 Sep-18 O P S TS Should Multi-factor authentication is used to authenticate standard users.
1173 3 Mar-19 O P S TS Must Multi-factor authentication is used to authenticate all privileged users and any other positions of trust.
1504 0 Sep-18 O P S TS Must Multi-factor authentication is used to authenticate all users of remote access solutions.
1505 0 Sep-18 O P S TS Must Multi-factor authentication is used to authenticate all users when accessing important data repositories.
1401 3 Mar-19 O P S TS Must Multi-factor authentication uses at least two of the following authentication factors: passwords with six or more characters, Universal 2nd Factor security keys, physical one-time password tokens, biometrics or smartcards.
1357 1 Sep-18 O P S TS Should When multi-factor authentication is implemented, none of the authentication factors on their own can be used for single-factor authentication to another system.
1055 2 Sep-18 O P S TS Must LAN Manager is disabled for passphrase authentication on workstations and servers.
1403 1 Sep-18 O P S TS Must Accounts are locked after a maximum of five failed logon attempts.
0431 2 Sep-18 O P S TS Should Repeated account lockouts are investigated before reauthorising access.
0976 4 Sep-18 O P S TS Must Users provide sufficient evidence to verify their identity when requesting a passphrase reset.
1227 2 Sep-18 O P S TS Must Passphrases resets are:
  • random for each individual reset
  • not reused when resetting multiple accounts
  • not based on a single dictionary word
  • not based on another identifying factor, such as the user’s name or the date.
0418 3 Sep-18 O P S TS Must Authentication information is stored separately from a system to which it grants access.
1402 1 Sep-18 O P S TS Must Authentication information stored or communicated by a system is protected from unauthorised access.
0428 6 Sep-18 O P S TS Must Systems are configured with a session or screen lock that:
  • activates after a maximum of 15 minutes of user inactivity or if manually activated by the user
  • completely conceals all information on the screen
  • ensures that the screen does not enter a power saving state before the screen or session lock is activated
  • requires the user to reauthenticate to unlock the system
  • denies users the ability to disable the session or screen locking mechanism.
0408 4 Sep-18 O P S TS Should Systems have a logon banner that requires users to acknowledge and accept their security responsibilities before access is granted.
0979 4 Sep-18 O P S TS Should Legal advice is sought on the exact wording of logon banners.

Guidelines for System Management

Identifier Revision Updated Applicability Priority Description
System administration
1380 3 Sep-18 O P - - Should Privileged users use a dedicated administrator workstation when performing privileged tasks.
1473 1 Sep-18 - - S TS Must Privileged users use a dedicated administrator workstation when performing privileged tasks.
1382 2 Sep-18 O P S TS Should Privileged users are assigned an unprivileged administration account for authenticating to their dedicated administrator workstations.
1381 2 Sep-18 O P S TS Must Dedicated administrator workstations used for privileged tasks are prevented from communicating to assets not related to administrative activities.
1383 2 Sep-18 O P S TS Must All administrative infrastructure including, but not limited to, administrator workstations and jump servers are hardened.
1384 2 Sep-18 O P S TS Must Multi-factor authentication is used to authenticate users each time they perform privileged actions.
1385 2 Sep-18 O P S TS Should Administrator workstations are placed into a separate network zone to user workstations.
1386 3 Sep-18 O P - - Should Management traffic is only allowed to originate from network zones that are used to administer systems and applications.
1474 1 Sep-18 - - S TS Must Management traffic is only allowed to originate from network zones that are used to administer systems and applications.
1387 1 Sep-18 O P S TS Should All administrative actions are conducted through a jump server.
1388 1 Sep-18 O P S TS Must Jump servers are prevented from communicating to assets and sending and receiving traffic not related to administrative activities.
System patching
1143 6 Sep-18 O P S TS Must An overarching strategy is developed and implemented for the patching, updating or mitigation of security vulnerabilities in applications, drivers, operating systems and firmware in workstations, servers, mobile devices, network devices and all other ICT equipment.
1493 0 Sep-18 O P S TS Should To maintain visibility of applications, drivers, operating systems and firmware that potentially require patching or updating, an inventory (including details of versions and patching histories) is maintained for workstations, servers, mobile devices, network devices and all other ICT equipment.
1144 9 Sep-18 O P S TS Must Security vulnerabilities in applications and drivers assessed as extreme risk are patched, updated or mitigated within 48 hours of the security vulnerabilities being identified by vendors, independent third parties, system managers or users.
0940 8 Sep-18 O P S TS Must Security vulnerabilities in applications and drivers assessed as high risk are patched, updated or mitigated within two weeks of the security vulnerability being identified by vendors, independent third parties, system managers or users.
1472 1 Sep-18 O P S TS Must Security vulnerabilities in applications and drivers assessed as moderate or low risk are patched, updated or mitigated within one month of the security vulnerability being identified by vendors, independent third parties, system managers or users.
1494 0 Sep-18 O P S TS Must Security vulnerabilities in operating systems and firmware assessed as extreme risk are patched, updated or mitigated within 48 hours of the security vulnerabilities being identified by vendors, independent third parties, system managers or users.
1495 0 Sep-18 O P S TS Must Security vulnerabilities in operating systems and firmware assessed as high risk are patched, updated or mitigated within two weeks of the security vulnerability being identified by vendors, independent third parties, system managers or users.
1496 0 Sep-18 O P S TS Must Security vulnerabilities in operating systems and firmware assessed as moderate or low risk are patched, updated or mitigated within one month of the security vulnerability being identified by vendors, independent third parties, system managers or users.
0300 6 Sep-18 - - S TS Must High assurance ICT equipment is only patched with patches approved by the ACSC using methods and timeframes prescribed by the ACSC.
0298 6 Sep-18 O P S TS Should Where possible, a centralised and managed approach is used to patch or update applications and drivers.
0303 6 Sep-18 O P S TS Must An approach for patching or updating applications and drivers that ensures the integrity and authenticity of patches or updates, as well as the processes used to apply them, is used.
1497 0 Sep-18 O P S TS Must An automated mechanism is used to confirm and record that deployed application and driver patches or updates have been installed, applied successfully and remain in place.
1498 0 Sep-18 O P S TS Should Where possible, a centralised and managed approach is used to patch or update operating systems and firmware.
1499 0 Sep-18 O P S TS Must An approach for patching or updating operating systems and firmware that ensures the integrity and authenticity of patches or updates, as well as the processes used to apply them, is used.
1500 0 Sep-18 O P S TS Must An automated mechanism is used to confirm and record that deployed operating system and firmware patches or updates have been installed, applied successfully and remain in place.
0304 5 Sep-18 O P S TS Must Applications that are no longer supported by vendors with patches or updates for security vulnerabilities are updated or replaced with vendor-supported versions.
1501 0 Sep-18 O P S TS Must Operating systems for workstations, servers and ICT equipment that are no longer supported by vendors with patches or updates for security vulnerabilities are updated or replaced with vendor-supported versions.
Change management
1211 1 Sep-18 O P S TS Must A change management process is developed and implemented that includes:
  • identification and documentation of changes to be made
  • approval required for changes to be made
  • implementation and testing of approved changes
  • any actions to be taken before and after approved changes are made.
0115 3 Sep-18 O P S TS Must For routine and urgent changes:
  • the change management process is followed
  • any proposed change that could impact the security of a system is approved by the system’s authorising officer
  • all associated security documentation is updated to reflect the change.
Data backups
1510 0 Sep-18 O P S TS Must Backup, restoration and preservation strategies are developed and implemented as part of business continuity, disaster recovery and digital preservation planning.
1511 0 Sep-18 O P S TS Must Backups of important information, software and configuration settings are performed at least daily.
1512 0 Sep-18 O P S TS Must Backups are stored offline, or online but in a non-rewritable and non-erasable manner.
1513 0 Sep-18 O P S TS Should Backups are stored at a multiple geographically-dispersed locations.
1514 0 Sep-18 O P S TS Must Backups are stored for three months or greater.
1515 1 Jul-19 O P S TS Must Full restoration of backups is tested at least once when initially implemented and each time fundamental information technology infrastructure changes occur.
1516 1 Jul-19 O P S TS Must Partial restoration of backups is tested on a quarterly or more frequent basis.

Guidelines for System Monitoring

Identifier Revision Updated Applicability Priority Description
Event logging and auditing
0580 5 Sep-18 O P S TS Must An event logging strategy is developed and implemented covering events to be logged, logging facilities to be used, event log retention periods and how event logs will be protected.
1405 1 Sep-18 O P S TS Must A centralised logging facility is implemented and systems are configured to save event logs to the centralised logging facility as soon as possible after each event occurs.
0988 5 Sep-18 O P S TS Must An accurate time source is established and used consistently across systems and network devices to assist with the correlation of events.
0584 2 Sep-18 O P S TS Must For any system requiring authentication, logon, failed logon and logoff events are logged.
0582 5 Sep-18 O P S TS Should The following events are logged for operating systems:
  • access to important data and processes
  • application crashes and any error messages
  • attempts to use special privileges
  • changes to accounts
  • changes to security policy
  • changes to system configurations
  • Domain Name System (DNS) and Hypertext Transfer Protocol requests
  • failed attempts to access data and system resources
  • service failures and restarts
  • system startup and shutdown
  • transfer of data to external media
  • user or group management
  • use of special privileges.
1536 0 Sep-18 O P S TS Should The following events are logged for web applications:
  • attempted access that is denied
  • crashes and any error messages
  • search queries initiated by users.
1537 0 Sep-18 O P S TS Should The following events are logged for databases:
  • access to particularly important information
  • addition of new users, especially privileged users
  • any query containing comments
  • any query containing multiple embedded queries
  • any query or database alerts or failures
  • attempts to elevate privileges
  • attempted access that is successful or unsuccessful
  • changes to the database structure
  • changes to user roles or database permissions
  • database administrator actions
  • database logons and logoffs
  • modifications to data
  • use of executable commands.
0585 4 Sep-18 O P S TS Must For each event logged, the date and time of the event, the relevant user or process, the event description, and the ICT equipment involved are recorded.
0586 4 Sep-18 O P S TS Must Event logs are protected from unauthorised access, modification and deletion.
0859 2 Sep-18 O P S TS Must Event logs are retained for a minimum of 7 years in accordance with the National Archives of Australia’s Administrative Functions Disposal Authority publication.
0991 4 Sep-18 O P S TS Should DNS and proxy logs are retained for at least 18 months.
0109 5 Sep-18 O P S TS Must Event log auditing procedures are developed and implemented covering the scope and schedule of audits, what constitutes a violation of security policy, and actions to be taken when violations are detected, including reporting requirements.
1228 2 Sep-18 O P S TS Should Events are correlated across event logs to prioritise audits and focus investigations.
Vulnerability management
1163 2 Sep-18 O P S TS Should A vulnerability management strategy is developed and implemented that includes:
  • conducting vulnerability assessments and penetration tests for systems throughout their life cycle to identify security vulnerabilities
  • analysing identified security vulnerabilities to determine their potential impact and appropriate mitigations or treatments based on effectiveness, cost and existing security controls
  • using a risk-based approach to prioritise the implementation of identified mitigations or treatments
  • monitoring information on new or updated security vulnerabilities in operating systems, software and ICT equipment as well as other elements which may adversely impact the security of a system.
0911 6 Sep-18 O P S TS Should Vulnerability assessments and penetration tests are conducted by suitably skilled personnel before a system is deployed, after a significant change to a system, and at least annually or as specified by the system owner.

Guidelines for Software Development

Identifier Revision Updated Applicability Priority Description
Application development
0400 4 Sep-18 O P S TS Should Software development, testing and production environments are segregated.
1419 1 Sep-18 O P S TS Should Development and modification of software only takes place in development environments.
1420 2 Sep-18 O P S TS Must Information in production environments is not used in testing or development environments unless the testing or development environments are secured to the same level as the production environments.
1422 3 Sep-18 O P S TS Should Unauthorised access to the authoritative source for software is prevented.
1238 3 Sep-18 O P S TS Should Threat modelling and other secure design techniques are used to ensure that threats to software and mitigations to those threats are identified and accounted for.
0401 3 Sep-18 O P S TS Should Platform-specific secure programming practices are used when developing software, including using the lowest privilege needed to achieve a task, checking return values of all system calls and validating all inputs.
0402 3 Sep-18 O P S TS Should Software is tested for security vulnerabilities by software developers, as well as an independent party, before it is used in a production environment.
Web application development
1239 3 Sep-18 O P S TS Should Robust web application frameworks are used to aid in the development of secure web applications.
1240 2 Sep-18 O P S TS Must Validation and/or sanitisation is performed on all input handled by a web application.
1241 3 Sep-18 O P S TS Must Output encoding is performed on all output produced by a web application.
1424 2 Sep-18 O P S TS Should Web browser-based security controls are implemented for web applications in order to help protect both web applications and their users.
0971 7 Apr-19 O P S TS Should The OWASP Application Security Verification Standard is followed when developing web applications.

Guidelines for Database Systems Management

Identifier Revision Updated Applicability Priority Description
Database servers
1425 1 Sep-18 O P S TS Should Hard disks of database servers are encrypted using full disk encryption.
1269 2 Sep-18 O P S TS Should Database servers and web servers are functionally separated, physically or virtually.
1277 2 Sep-18 O P S TS Must Information communicated between database servers and web applications is encrypted.
1270 2 Sep-18 O P S TS Should Database servers that require network connectivity are placed on a different network segment to an organisation’s workstations.
1271 1 Sep-18 O P S TS Should Network access controls are implemented to restrict database servers’ communications to strictly defined network resources such as web servers, application servers and storage area networks.
1272 1 Sep-18 O P S TS Should If only local access to a database is required, networking functionality of database management system (DBMS) software is disabled or directed to listen solely to the localhost interface.
1273 2 Sep-18 O P S TS Must Test and development environments do not use the same database servers as production environments.
Database management system software
1245 2 Sep-18 O P S TS Should All temporary installation files and logs are removed after DBMS software has been installed.
1246 2 Sep-18 O P S TS Should DBMS software is configured according to vendor guidance.
1247 2 Sep-18 O P S TS Should DBMS software features, stored procedures, accounts and databases that are not required are disabled or removed.
1249 2 Sep-18 O P S TS Must DBMS software is configured to run as a separate account with the minimum privileges needed to perform its functions.
1250 1 Sep-18 O P S TS Must The account under which DBMS software runs has limited access to non-essential areas of the database server’s file system.
1251 2 Sep-18 O P S TS Should The ability of DBMS software to read local files from a server is disabled.
1260 2 Sep-18 O P S TS Must Default database administrator accounts are disabled, renamed or have their passphrases changed.
1262 1 Sep-18 O P S TS Must Database administrators have unique and identifiable accounts.
1261 2 Sep-18 O P S TS Should Database administrator accounts are not shared across different databases.
1263 2 Sep-18 O P S TS Must Database administrator accounts are used exclusively for administrative tasks, with standard database accounts used for general purpose interactions with databases.
1264 1 Sep-18 O P S TS Should Database administrator access is restricted to defined roles rather than accounts with default administrative permissions, or all permissions.
Databases
1243 3 Sep-18 O P S TS Should An accurate inventory of all databases and their contents is maintained and regularly audited.
1256 3 Sep-18 O P S TS Must File-based access controls are applied to database files.
1252 3 Jun-19 O P S TS Must Passphrases stored in databases are hashed with a uniquely salted Australian Signals Directorate Approved Cryptographic Algorithm.
0393 7 Apr-19 O P S TS Must Databases and their contents are classified based on the sensitivity or classification of information that they contain.
1255 3 Sep-18 O P S TS Should Database users’ ability to access, insert, modify and remove content in databases is restricted based on their work duties.
1268 1 Sep-18 O P S TS Should The need-to-know principle is enforced for database contents through the application of minimum privileges, database views and database roles.
1258 1 Sep-18 O P S TS Should Where concerns exist that the sum, or aggregation, of separate pieces of information from within databases could lead to a database user determining more sensitive or classified information, database views in combination with database user access roles are implemented.
1274 4 Sep-18 O P S TS Must Information in production databases is not used in testing or development databases unless the testing or development environments are secured to the same level as the production environment.
1275 1 Sep-18 O P S TS Must All queries to databases from web applications are filtered for legitimate content and correct syntax.
1276 2 Sep-18 O P S TS Should Parameterised queries or stored procedures are used for database interaction instead of dynamically generated queries.
1278 2 Sep-18 O P S TS Should Web applications are designed to provide as little error information as possible to users about database schemas.

Guidelines for Email Management

Identifier Revision Updated Applicability Priority Description
Email usage
0264 2 Sep-18 O P S TS Must A policy governing the use of email is developed and implemented.
0267 7 Mar-19 O P S TS Must Access to non-approved webmail services is blocked.
0270 5 Mar-19 O P S TS Must Protective markings are applied to emails and reflect the information in their subject, body and attachments.
0271 3 Mar-19 O P S TS Should Protective marking tools do not automatically insert protective markings into emails.
0272 4 Mar-19 O P S TS Should Protective marking tools do not allow users to select protective markings that a system has not been authorised to process, store or communicate.
1089 4 Mar-19 O P S TS Should Protective marking tools do not allow users replying to or forwarding an email to select a protective marking that is lower than previously used for the email.
0565 4 Mar-19 O P S TS Must Email servers are configured to block, log and report emails with inappropriate protective markings.
1023 5 Mar-19 O P S TS Should The intended recipients of any blocked inbound emails, and the sender of any blocked outbound emails, are notified.
1539 1 Mar-19 - P S TS Must Emails containing nationality releasability information are only sent to named recipients and not to groups or distribution lists unless the nationality of all members of the distribution lists can be confirmed.
0269 2 Sep-18 - - S TS Must Emails containing AUSTEO or AGAO information are only sent to named recipients and not to groups or distribution lists unless the nationality of all members of the distribution lists can be confirmed.
Email gateways and servers
0569 3 Sep-18 O P S TS Should Email is routed through a centralised email gateway.
0571 5 Mar-19 O P S TS Must When users send email from outside their network, an authenticated and encrypted channel is configured to allow email to be routed via a centralised email gateway.
0570 4 Sep-18 O P S TS Must Where backup or alternative email gateways are in place, they are maintained at the same standard as the primary email gateway.
0567 4 Mar-19 O P S TS Must Email servers only relay emails destined for or originating from their domains.
0572 3 Sep-18 O P S TS Must Opportunistic TLS encryption, as defined in IETF RFC 3207, is enabled on email servers that make incoming or outgoing email connections over public network infrastructure.
0574 3 Sep-18 O P S TS Must Email servers are specified using SPF or Sender ID.
1183 1 Sep-18 O P S TS Should A hard fail SPF record is used when specifying email servers.
1151 2 Sep-18 O P S TS Should SPF or Sender ID is used to verify the authenticity of incoming emails.
1152 3 Mar-19 O P S TS Must Incoming emails that fail SPF checks are blocked or marked in a manner that is visible to the recipients.
0861 2 Mar-19 O P S TS Should DKIM signing is enabled on emails originating from an organisation’s domains.
1025 4 Sep-18 O P S TS Should DKIM is used in conjunction with SPF.
1026 4 Sep-18 O P S TS Should DKIM signatures on received emails are verified, taking into account that email distribution list software typically invalidates DKIM signatures.
1027 4 Sep-18 O P S TS Should Email distribution list software used by external senders is configured such that it does not break the validity of the sender’s DKIM signature.
1540 0 Sep-18 O P S TS Should A DMARC record is configured specifying that emails from an organisation’s domains be rejected if they fail SPF/Sender ID or DKIM checks.
1234 3 Mar-19 O P S TS Must Email content filtering controls are implemented for email bodies and attachments.
0561 5 Mar-19 O P S TS Must Emails addressed to internal email aliases where the source address is from outside the domain are blocked at the email gateway.
1502 1 Mar-19 O P S TS Must Emails arriving via an external connection where the source address uses an internal domain name are blocked at the email gateway.
1024 4 Sep-18 O P S TS Should Notification of undeliverable, bounced or blocked emails are only sent to senders that can be verified via SPF or other trusted means.

Guidelines for Network Management

Identifier Revision Updated Applicability Priority Description
Network design and configuration
0516 4 Sep-18 O P S TS Must Network documentation includes a high-level network diagram showing all connections into the network; a logical network diagram showing all network devices, critical servers and services; and the configuration of all network devices.
0518 4 Sep-18 O P S TS Must Network documentation is updated as network configuration changes are made and includes a ‘current as at [date]’ or equivalent statement.
1178 3 Sep-18 O P S TS Must Network documentation provided to a third party, or published in public tender documentation, only contains details necessary for other parties to undertake contractual services.
1181 3 Sep-18 O P S TS Should Networks are divided into multiple functional network zones according to the sensitivity or criticality of information or services.
1310 3 Sep-18 O - - - Should VLANs are not used to separate network traffic between official networks and public network infrastructure.
1532 0 Sep-18 - P S TS Must VLANs are not used to separate network traffic between classified networks and public network infrastructure.
0529 5 Sep-18 O P S TS Must VLANs are not used to separate network traffic between official and classified networks, or networks of different classifications.
1364 2 Sep-18 O P S TS Must VLANs belonging to different security domains are terminated on separate physical network interfaces.
0535 5 Sep-18 O P S TS Must VLANs belonging to official and classified networks, or networks of different classifications, do not share VLAN trunks.
0530 5 Sep-18 O P S TS Must Network devices implementing VLANs are managed from the most trusted network.
0521 5 Sep-18 O P S TS Must IPv6 functionality is disabled in dual-stack network devices and ICT equipment unless it is being used.
1186 3 Sep-18 O P S TS Must IPv6 capable network security devices are used on IPv6 and dual-stack networks.
1428 1 Sep-18 O P S TS Must Unless explicitly required, IPv6 tunnelling is disabled on all network devices and ICT equipment.
1429 1 Sep-18 O P S TS Must IPv6 tunnelling is blocked by network security devices at externally connected network boundaries.
1430 1 Sep-18 O P S TS Should Dynamically assigned IPv6 addresses are configured with Dynamic Host Configuration Protocol version 6 in a stateful manner with lease information stored in a centralised logging facility.
0520 6 Sep-18 O P S TS Should Network access controls are implemented on networks to prevent the connection of unauthorised network devices.
1182 3 Sep-18 O P S TS Should Network access controls are implemented to limit traffic within and between network segments to only those that are required for business purposes.
1301 1 Sep-18 O P S TS Should An inventory of authorised network devices is maintained and regularly audited to detect the presence of any rogue network devices.
1304 2 Sep-18 O P S TS Must Default accounts for network devices are disabled, renamed or have their passphrase changed.
0534 2 Sep-18 O P S TS Must Unused physical ports on network devices are disabled.
0385 6 Sep-18 O P S TS Should Servers maintain effective functional separation with other servers allowing them to operate independently.
1479 0 Sep-18 O P S TS Should Servers minimise communications with other servers at both the network and file system level.
1460 1 Sep-18 O P S TS Must When using a software-based isolation mechanism to share a physical server’s hardware:
  • the isolation mechanism is from a vendor that uses secure coding practices and, when security vulnerabilities have been identified, develops and distributes patches in a timely manner
  • the configuration of the isolation mechanism is hardened by removing unneeded functionality and restricting access to the administrative interface used to manage the isolation mechanism
  • the underlying operating system running on the server is hardened
  • patches are applied to the isolation mechanism and underlying operating system in a timely manner
  • integrity and log monitoring are performed for the isolation mechanism and underlying operating system in a timely manner.
1462 1 Jul-19 - P - - Must When using a software-based isolation mechanism to share a physical server’s hardware, the physical server and all computing environments running on the physical server are of the same classification.
1461 2 Jul-19 - - S TS Must When using a software-based isolation mechanism to share a physical server’s hardware, the physical server and all computing environments running on the physical server are controlled by the same organisation, are of the same classification and are within the same security domain.
1006 6 Sep-18 O P S TS Should Security measures are implemented to prevent unauthorised access to network management traffic.
1311 2 Sep-18 O P S TS Must SNMP version 1 and 2 are not used on networks.
1312 2 Sep-18 O P S TS Should All default SNMP community strings on network devices are changed and have write access disabled.
1028 6 Sep-18 O P S TS Should NIDS or NIPS are deployed in all gateways between an organisation’s networks and other networks they do not manage, including public network infrastructure.
1030 6 Sep-18 O P S TS Should NIDS or NIPS in gateways are located immediately inside the outermost firewall and configured to generate a log entry, and an alert, for any information flows that contravene any rule in firewall rule sets.
1185 3 Sep-18 O P S TS Must When deploying NIDS or NIPS in non-internet gateways, they are configured to monitor unusual patterns of behaviour or traffic flows rather than internet-based communication protocol signatures.
Wireless networks
1314 1 Sep-18 O P S TS Must All wireless access points are Wi-Fi Alliance certified.
0536 6 Sep-18 O P S TS Must Wireless networks provided for the general public to access are segregated from all other networks.
1315 2 Sep-18 O P S TS Should The administrative interface on wireless access points is disabled for wireless network connections.
1316 2 Sep-18 O P S TS Must The default SSID of wireless access points is changed.
1317 2 Sep-18 O P S TS Should The SSID of a non-public wireless network is not readily associated with an organisation, the location of their premises or the functionality of the wireless network.
1318 2 Sep-18 O P S TS Should SSID broadcasting is enabled on wireless networks.
1319 2 Sep-18 O P S TS Should Static addressing is not used for assigning IP addresses on wireless networks.
1320 2 Sep-18 O P S TS Should MAC address filtering is not used to restrict which devices can connect to wireless networks.
1321 1 Sep-18 O P S TS Must WPA2-Enterprise with EAP-TLS is used to perform mutual authentication for wireless networks.
1322 2 Sep-18 - P S TS Must Supplicants, authenticators and the authentication server used in wireless networks have completed an Australian Signals Directorate Cryptographic Evaluation (ACE).
1324 2 Sep-18 - P S TS Must Certificates are generated using certificate authority software or a hardware security module that has completed an ACE.
1323 2 Sep-18 O P S TS Should Both device and user certificates are required for accessing wireless networks.
1325 1 Sep-18 O P S TS Must Both device and user certificates for accessing wireless networks are not stored on the same device.
1326 2 Sep-18 O P S TS Should User certificates for accessing wireless networks are issued on smart cards with access PINs.
1327 1 Sep-18 O P S TS Should User or device certificates stored on devices accessing wireless networks are protected by encryption.
1330 1 Sep-18 O P S TS Should The PMK caching period is not set to greater than 1440 minutes (24 hours).
1454 1 Sep-18 O P S TS Should Communications between wireless access points and a RADIUS server are encapsulated with an additional layer of encryption.
1332 1 Sep-18 O P S TS Must CCMP is used to protect the confidentiality and integrity of all wireless network traffic.
0543 6 Sep-18 - P - - Must Cryptographic equipment that has completed an ACE is used if an organisation wishes to communicate classified information over a wireless network.
1445 1 Sep-18 - - S TS Must High Assurance Cryptographic Equipment is used if an organisation wishes to communicate highly classified information over a wireless network.
1334 2 Sep-18 O P S TS Should Wireless networks implement sufficient frequency separation from other wireless networks.
1335 1 Sep-18 O P S TS Should Wireless access points enable the use of the 802.11w amendment to protect management frames.
1338 1 Sep-18 O P S TS Should Instead of deploying a small number of wireless access points that broadcast on high power, a greater number of wireless access points that use less broadcast power are deployed to achieve the desired footprint.
1013 5 Sep-18 - - S TS Should The effective range of wireless communications outside an organisation’s area of control is limited by implementing RF shielding on buildings in which wireless networks are used.
Service continuity for online services
1458 1 Sep-18 O P - - Should The functionality and quality of online services, how to maintain such functionality, and what functionality can be lived without during a denial-of-service attack, are determined and documented.
1431 1 Sep-18 O P - - Should Denial-of-service attack prevention and mitigation strategies are discussed with service providers, specifically:
  • their capacity to withstand denial-of-service attacks
  • any costs likely to be incurred by customers resulting from denial-of-service attacks
  • thresholds for notifying customers or turning off their online services during denial-of-service attacks
  • pre-approved actions that can be undertaken during denial-of-service attacks
  • denial-of-service attack prevention arrangements with upstream providers to block malicious traffic as far upstream as possible.
1432 1 Sep-18 O P - - Should Domain names for online services are protected via registrar locking and confirming domain registration details are correct.
1433 1 Sep-18 O P - - Should 24x7 contact details are maintained for service providers and service providers maintain 24x7 contact details for their customers.
1434 1 Sep-18 O P - - Should Organisations and service providers provide each other with additional out-of-band contact details for use when normal communication channels fail.
1435 1 Sep-18 O P - - Should Availability monitoring with real-time alerting is implemented to detect denial-of-service attacks and measure their impact.
1436 1 Sep-18 O P - - Should Critical online services are segregated from other online services that are more likely to be targeted.
1518 0 Sep-18 O P - - Should A static version of a website is pre-prepared that requires minimal processing and bandwidth in order to facilitate at least a basic level of service when under a denial-of-service attack.
1437 2 Sep-18 O P - - Should A cloud service provider, preferably multiple different cloud service providers, is used for hosting online services.
1438 1 Sep-18 O P - - Should Where a high availability requirement exists for website hosting, CDNs that cache websites are used.
1439 1 Sep-18 O P - - Should If using a CDN, disclosing the IP address of the web server under the organisation’s control (referred to as the origin server) is avoided and access to the origin server is restricted to the CDN and an authorised management network.
1441 1 Sep-18 O P - - Should Where a requirement for high availability exists for online services, a denial of service mitigation service is used.

Guidelines for Using Cryptography

Identifier Revision Updated Applicability Priority Description
Cryptographic fundamentals
1161 4 Sep-18 O - - - Must Encryption software that implements an ASD Approved Cryptographic Algorithm (AACA) is used if an organisation wishes to reduce the physical storage or handling requirements for ICT equipment or media that contains sensitive information.
0457 5 Sep-18 - P - - Must Encryption software that has completed an ACE is used if an organisation wishes to reduce the physical storage or handling requirements for ICT equipment or media that contains classified information.
0460 8 Sep-18 - - S TS Must HACE is used if an organisation wishes to reduce the physical storage or handling requirements for ICT equipment or media that contains highly classified information.
0459 3 Sep-18 O P - - Should Encryption software used for data at rest implements full disk encryption, or partial encryption where access controls will only allow writing to the encrypted partition.
0461 5 Sep-18 - - S TS Must HACE used for data at rest implements full disk encryption, or partial encryption where access controls will only allow writing to the encrypted partition.
1080 2 Sep-18 - - S TS Must In addition to any encryption already in place, an AACA is used to encrypt AUSTEO and AGAO information when at rest on a system.
0455 2 Sep-18 O P S TS Must Where practical, cryptographic equipment and encryption software provides a means of data recovery to allow for circumstances where the encryption key is unavailable due to loss, damage or failure.
0462 5 Sep-18 O P S TS Must When a user authenticates to encryption functionality for ICT equipment or media storing encrypted information, it is treated in accordance with its original sensitivity or classification until such a time that the user deauthenticates from the encryption functionality.
1162 3 Sep-18 O - - - Must Cryptographic equipment or encryption software that implements an ASD Approved Cryptographic Protocol (AACP) is used to communicate sensitive information over public network infrastructure and through unsecured spaces.
0465 6 Sep-18 - P - - Must Cryptographic equipment or encryption software that has completed an ACE is used to communicate classified information over official networks, public network infrastructure and through unsecured spaces.
0467 8 Sep-18 - - S TS Must HACE is used to communicate highly classified information over networks of a lower classification, official networks, public network infrastructure and through unsecured spaces.
0469 3 Sep-18 - - S TS Must In addition to any encryption already in place, an AACP is used to protect AUSTEO and AGAO information when communicated across network infrastructure.
ASD Approved Cryptographic Algorithms
0471 5 Sep-18 O P - - Must If using cryptographic equipment or software that implements an AACA, only AACAs can be used.
0994 5 Sep-18 O P - - Should ECDH and ECDSA are used in preference to DH and DSA.
0472 4 Sep-18 O P - - Must When using DH for agreeing on encryption session keys, a modulus of at least 1024 bits, preferably 2048 bits, is used.
0473 4 Sep-18 O P - - Must When using DSA for digital signatures, a modulus of at least 1024 bits, preferably 2048 bits, is used.
1446 1 Sep-18 O P - - Must When using elliptic curve cryptography, a curve from FIPS 186-4 is used.
0474 4 Sep-18 O P - - Must When using ECDH for agreeing on encryption session keys, a field/key size of at least 160 bits, preferably 256 bits, is used.
0475 4 Sep-18 O P - - Must When using ECDSA for digital signatures, a field/key size of at least 160 bits, preferably 256 bits, is used.
0476 5 Sep-18 O P - - Must When using RSA for digital signatures, and passing encryption session keys or similar keys, a modulus of at least 1024 bits, preferably 2048 bits, is used.
0477 6 Sep-18 O P - - Must When using RSA for digital signatures, and for passing encryption session keys or similar keys, a key pair for passing encrypted session keys that is different from the key pair used for digital signatures is used.
1054 4 Sep-18 O P - - Must A hashing algorithm from the SHA-2 family is used instead of SHA-1.
0479 4 Sep-18 O P - - Should Symmetric cryptographic algorithms are not used in Electronic Codebook Mode.
0480 6 Sep-18 O P - - Must 3DES is used with three distinct keys.
1232 5 May-19 - - S TS Must AACAs are used in an evaluated implementation.
1468 4 May-19 - - S TS Should Preference is given to using the CNSA Suite algorithms and key sizes where possible.
ASD Approved Cryptographic Protocols
0481 4 Sep-18 O P S TS Must If using cryptographic equipment or software that implements an AACP, only AACAs can be used.
Transport Layer Security
1139 4 Sep-18 O P S TS Should The latest version of TLS is used.
1369 1 Sep-18 O P S TS Should AES in Galois Counter Mode is used for symmetric encryption when available.
1370 1 Sep-18 O P S TS Should A TLS implementation that supports secure renegotiation is used.
1371 1 Sep-18 O P S TS Must If secure renegotiation is not available, renegotiation is disabled.
1372 2 Sep-18 O P S TS Should DH or ECDH is used for key establishment.
1448 1 Sep-18 O P S TS Should When using DH or ECDH for key establishment, the ephemeral variant is used.
1373 1 Sep-18 O P S TS Must Anonymous DH is not used.
1374 1 Sep-18 O P S TS Should SHA-2-based certificates are used where possible.
1375 2 Sep-18 O P S TS Should Cipher suites are configured to use SHA-2 as part of the Message Authentication Code and Pseudo-Random Function where possible.
1453 1 Sep-18 O P S TS Should PFS is used for TLS connections.
Secure Shell
1506 0 Sep-18 O P S TS Should The use of SSH version 1 is disabled.
0484 4 Sep-18 O P S TS Should The configuration settings in the following table are implemented for the SSH daemon. (See source document for referenced table)
0485 3 Sep-18 O P S TS Should Public key-based authentication is used for SSH connections.
1449 1 Sep-18 O P S TS Should SSH private keys are protected with a passphrase or a key encryption key.
0487 3 Sep-18 O P S TS Should When using logins without a passphrase for automated purposes, the following are disabled:
  • access from IP addresses that do not require access
  • port forwarding
  • agent credential forwarding
  • X11 display remoting
  • console access.
0488 3 Sep-18 O P S TS Should If using remote access without the use of a passphrase, the ‘forced command’ option is used to specify what command is executed and parameter checked is enabled.
0489 4 Sep-18 O P S TS Should When SSH-agent or other similar key caching programs are used, it is only on workstations and servers with screen locks, key caches are set to expire within four hours of inactivity, and agent credential forwarding is enabled only when SSH traversal is required.
Secure/Multipurpose Internet Mail Extension
0490 3 Sep-18 O P S TS Should Versions of S/MIME earlier than 3.0 are not used.
Internet Protocol Security
0494 3 Sep-18 O P S TS Should Tunnel mode is used for IPsec connections; however, if using transport mode, an IP tunnel is used.
0496 4 Sep-18 O P S TS Must The ESP protocol is used for IPsec connections.
1233 1 Sep-18 O P S TS Must IKE is used for key exchange when establishing an IPsec connection.
0497 5 Sep-18 O P S TS Should If using ISAKMP in IKE version 1, aggressive mode is disabled.
0498 3 Sep-18 O P S TS Should A security association lifetime of less than four hours, or 14400 seconds, is used.
0998 4 Sep-18 O P S TS Must HMAC-SHA256, HMAC-SHA384 or HMAC-SHA512 is used as a HMAC algorithm.
0999 5 Sep-18 O P S TS Should The largest modulus size possible for all relevant components in the network is used when conducting a key exchange.
1000 4 Sep-18 O P S TS Should PFS is used for IPsec connections.
1001 4 Sep-18 O P S TS Should The use of XAuth is disabled for IPsec connections using IKE version 1.
Cryptographic key management
0501 4 Sep-18 O P - - Must Keyed CGCE is transported based on the sensitivity or classification of the keying material in it.
0142 3 Jun-19 O P - - Must The compromise or suspected compromise of CGCE or associated keying material is reported to an organisation’s Chief Information Security Officer, or one of their delegates, as soon as possible after it occurs.
1091 5 Jun-19 O P - - Must Keying material is changed when compromised or suspected of being compromised.
0499 8 Apr-19 - - S TS Must ACSI 53 E, ACSI 103 A, ACSI 105 B, ACSI 107 B, ACSI 173 A and the latest equipment-specific doctrine is complied with when using HACE.
0505 5 Sep-18 O P S TS Should Cryptographic equipment is stored in a room that meets the requirements for a server room based on the sensitivity or classification of the information the cryptographic equipment processes.
0506 3 Sep-18 - - S TS Should Areas in which HACE is used are separated from other areas and designated as a cryptographic controlled area.

Guidelines for Gateway Management

Identifier Revision Updated Applicability Priority Description
Gateways
0628 5 Mar-19 O P S TS Must All systems are protected from systems in other security domains by one or more gateways.
1192 2 Sep-18 O P S TS Should All connections between security domains implement mechanisms to inspect and filter data flows for the transport and higher layers as defined in the OSI model.
0631 5 Jun-19 O P S TS Must Gateways:
  • are the only communications paths into and out of internal networks
  • allow only explicitly authorised connections
  • are managed via a secure path isolated from all connected networks (physically at the gateway or on a dedicated administration network)
  • are protected by authentication, logging and auditing of all physical and logical access to gateway components
  • have all security controls tested to verify their effectiveness after any changes to their configuration.
1427 2 Jun-19 O P S TS Should Gateways implement ingress traffic filtering to detect and prevent Internet Protocol (IP) source address spoofing.
0634 7 Jun-19 O P S TS Must All gateways connecting networks in different security domains are operated such that they:
  • log network traffic permitted through the gateway
  • log network traffic attempting to leave the gateway
  • are configured to save event logs to a secure logging facility
  • provide real-time alerts for any cyber security incidents, attempted intrusions and unusual usage patterns.
0637 5 Sep-18 O P S TS Must Demilitarised zones are used to broker access to services accessed by external entities, and mechanisms are applied to mediate internal and external access to less-trusted services hosted in these demilitarised zones.
0598 3 Sep-18 O P S TS Must A security risk assessment is performed on gateways and their configuration before their implementation.
1519 0 Sep-18 O P S TS Must A security risk assessment is performed on all systems before they are connected to a gateway.
0605 3 Sep-18 O P S TS Must All system owners of systems connected via a gateway understand and accept security risks associated with the gateway and any connected security domains, including those connected via a cascaded connection.
1041 4 Sep-18 O P S TS Should The security architecture of a gateway, and security risks associated with all connected security domains, including those connected via a cascaded connection, is reviewed at least annually.
0624 4 Sep-18 O P S TS Must Any associated security risk assessments are updated before changes are made to a gateway to ensure all relevant security risks have been documented and accepted.
0625 4 Sep-18 O P S TS Must All changes to a gateway architecture are considered prior to implementation, documented and assessed in accordance with the organisation’s change management process.
1037 4 Sep-18 O P S TS Should Gateways are subject to rigorous testing, performed at irregular intervals no more than six months apart, to determine the strength of security controls.
0611 4 Mar-19 O P S TS Must Access to gateway administration functions is limited to the minimum roles and privileges to support the gateway securely.
0612 4 Sep-18 O P S TS Must System administrators are formally trained to manage gateways.
1520 0 Sep-18 O P S TS Must All system administrators of gateways are cleared to access the highest level of information communicated or processed by the gateway.
0613 4 Sep-18 - - S TS Must All system administrators of gateways that process Australian Eyes Only (AUSTEO) or Australian Government Access Only (AGAO) information are Australian nationals.
0616 3 Sep-18 O P - - Should Roles for the administration of gateways are separated.
0617 3 Sep-18 - - S TS Must Roles for the administration of gateways are separated.
0629 3 Sep-18 O P S TS Must For gateways between networks in different security domains, a formal arrangement exists whereby any shared components are managed by the system managers of the highest security domain or by a mutually agreed third party.
0607 2 Sep-18 O P - - Should Once connectivity is established, system owners become information stakeholders for all connected security domains.
0608 2 Sep-18 - - S TS Must Once connectivity is established, system owners become information stakeholders for all connected security domains.
0619 5 Sep-18 O P S TS Must Users and services accessing networks through gateways are authenticated.
0620 4 Sep-18 O P S TS Must Only users and services authenticated and authorised to a gateway can use the gateway.
1039 4 Sep-18 O P S TS Should Multi-factor authentication is used for access to gateways.
0622 5 Sep-18 O P S TS Should ICT equipment accessing networks through gateways is authenticated.
Cross Domain Solutions
0626 4 Sep-18 - - S TS Must When connecting a highly classified network to any other network from a different security domain, a CDS is implemented.
0597 6 Sep-18 - - S TS Must When designing and deploying a CDS, the ACSC is notified and consulted; and directions provided by the ACSC are complied with.
0627 5 Sep-18 - - S TS Must When introducing additional connectivity to a CDS, such as adding a new gateway to a common network, the ACSC is consulted on the impact to the security of the CDS; and directions provided by the ACSC are complied with.
0635 4 Sep-18 - - S TS Must All CDS between highly classified networks and any other network implement isolated upward and downward network paths.
1521 0 Sep-18 - - S TS Must All CDS between highly classified networks and any other network implement protocol breaks at each layer of the OSI model.
1522 0 Sep-18 - - S TS Must All CDS between highly classified networks and any other network implement content filtering and separate independent security-enforcing components for upward and downward data flows.
0670 4 Sep-18 - - S TS Must All security-relevant events generated by a CDS are logged and regularly analysed.
1523 0 Sep-18 - - S TS Should A representative sample of security events generated by a CDS, relating to the enforcement of data transfer policies, is taken at least every 3 months and assessed against the security policies that the CDS is responsible for enforcing between security domains.
0610 6 Apr-19 O P S TS Must Users are trained on the secure use of a CDS before access to the CDS is granted.
Firewalls
1528 1 Apr-19 O P S TS Must An evaluated firewall is used between official or classified networks and public network infrastructure.
0639 8 Apr-19 O P S TS Must An evaluated firewall is used between networks belonging to different security domains.
1194 2 Sep-18 O P S TS Must The requirement to use a firewall as part of gateway infrastructure is met by both parties independently; shared ICT equipment does not satisfy the requirements of both parties.
0641 7 Sep-18 - - S TS Must In addition to the firewall between networks of different security domains, an evaluated firewall is used between an AUSTEO or AGAO network and a foreign network.
0642 7 Sep-18 - - S TS Should In addition to the firewall between networks of different security domains, an evaluated firewall is used between an AUSTEO or AGAO network and another Australian controlled network.
Diodes
0643 5 Sep-18 O P - - Must An evaluated diode is used for controlling the data flow of unidirectional gateways between official or classified networks and public network infrastructure.
0645 5 Sep-18 - - S TS Must A high assurance diode is used for controlling the data flow of unidirectional gateways between classified networks and public network infrastructure.
1157 3 Sep-18 O P - - Must An evaluated diode is used for controlling the data flow of unidirectional gateways between official and classified networks.
1158 4 Sep-18 O P S TS Must A high assurance diode is used for controlling the data flow of unidirectional gateways between official or classified networks where the highest system is SECRET or above.
0646 4 Sep-18 - - S TS Must An evaluated diode is used between an AUSTEO or AGAO network and a foreign network at the same classification.
0647 6 Sep-18 - - S TS Should An evaluated diode is used between an AUSTEO or AGAO network and another Australian controlled network at the same classification.
0648 3 Sep-18 O P S TS Should A diode (or server connected to the diode) deployed to control data flow in unidirectional gateways monitors the volume of the data being transferred.
Web content and connections
0258 2 Sep-18 O P S TS Must A policy governing appropriate web usage is developed and implemented.
0260 2 Sep-18 O P S TS Should All web access, including that by internal servers, is conducted through a web proxy.
0261 4 Sep-18 O P S TS Should A web proxy authenticates users and provides logging that includes the following details about websites accessed:
  • address (uniform resource locator)
  • time/date
  • user
  • amount of data uploaded and downloaded
  • internal and external IP addresses.
0263 5 Sep-18 O P S TS Should If permitting TLS through internet gateways, either of the following approaches is implemented:
  • a solution that decrypts and inspects TLS traffic as per content filtering security controls
  • a whitelist specifying the addresses (uniform resource locators) to which encrypted connections are permitted, with all other addresses blocked or decrypted and inspected as per content filtering security controls.
0996 5 Sep-18 O P S TS Should Legal advice is sought regarding the inspection of TLS traffic by internet gateways.
0958 5 Sep-18 O P S TS Should Whitelisting is implemented for all Hypertext Transfer Protocol (HTTP) traffic communicated through internet gateways.
0995 4 Sep-18 O P S TS Should If using a whitelist on internet gateways to specify the external addresses to which connections are permitted, it specifies whitelisted addresses by domain name or IP address.
1170 1 Sep-18 O P S TS Should If websites are not whitelisted, categories are implemented for all websites and prohibited and uncategorised websites are blocked.
0959 4 Sep-18 O P S TS Should If whitelisting of websites is not implemented, blacklisting of websites is implemented to prevent access to known malicious websites.
0960 4 Sep-18 O P S TS Should If blacklisting websites, the blacklist is updated on a daily basis to ensure that it remains effective.
1171 1 Sep-18 O P S TS Should Attempts to access a website through its IP address instead of through its domain name are blocked.
1236 1 Sep-18 O P S TS Should Dynamic domains and other domains where domain names can be registered anonymously for free are blocked.
0963 5 Sep-18 O P S TS Should A web content filter is used to filter potentially harmful web-based content.
0961 5 Sep-18 O P S TS Should Client-side active content, such as Java, is restricted to a whitelist of approved websites which may be the same as the HTTP whitelist or a separate active content whitelist.
1237 1 Sep-18 O P S TS Should Web content filtering controls are applied to outbound web traffic where appropriate.
Peripheral switches
0591 6 Sep-18 O P - - Must An evaluated peripheral switch is used when sharing peripherals between official and classified systems.
1480 0 Sep-18 O P S TS Must A high assurance peripheral switch is used when sharing peripherals between official or classified systems and highly classified systems.
1457 2 Sep-18 - - S TS Must An evaluated, preferably high assurance, peripheral switch is used when sharing peripherals between systems of different classifications.
0593 9 Apr-19 O P S TS Must An evaluated peripheral switch is used when sharing peripherals between official systems, or classified systems at the same classification, that belong to different security domains.
0594 4 Sep-18 - - S TS Should An evaluated peripheral switch is used when accessing a system containing AUSTEO or AGAO information and a system of the same classification that is not authorised to process the same caveat.

Guidelines for Data Transfers and Content Filtering

Identifier Revision Updated Applicability Priority Description
Data transfers
0663 4 Sep-18 O P S TS Must Data transfers are performed in accordance with approved procedures.
0661 7 Apr-19 O P S TS Must Users transferring data to and from a system are held accountable for the data they transfer.
0665 4 May-19 - - S TS Must Trusted sources are a strictly limited number of personnel that have been authorised as such by an organisation’s CISO.
0675 3 Sep-18 - - S TS Must A trusted source makes an informed decision to sign all data authorised for export from a security domain.
0664 5 Sep-18 - - S TS Must All data transferred to a system of a lesser sensitivity or classification is reviewed and approved by a trusted source.
0657 4 Sep-18 O P - - Must Data imported to a system is scanned for malicious and active content.
0658 4 Sep-18 - - S TS Must Data imported to a system is scanned for malicious and active content, undergoes data format checks and logging, and is monitored to detect overuse/unusual usage patterns.
1187 1 Sep-18 O P - - Must When exporting data, protective marking checks are undertaken.
0669 3 Sep-18 - - S TS Must When exporting data, the following activities are undertaken:
  • protective marking checks
  • data format checks and logging
  • monitoring to detect overuse/unusual usage patterns
  • limitations on data types and sizes
  • keyword searches on all textual data.
1535 0 Sep-18 - - S TS Must Procedures are developed to prevent AUSTEO and AGAO data in both textual and non-textual formats from being exported to foreign systems.
0678 2 Sep-18 - - S TS Must When exporting data from an AUSTEO or AGAO system, keyword searches are undertaken on all textual data and any identified data is quarantined until reviewed and approved for release by a trusted source other than the originator.
0667 4 Sep-18 O P S TS Must Data exported from each security domain, including through a gateway, is only permitted once the classification has been assessed including a protective marking check.
0660 5 Sep-18 - - S TS Must When importing data to each security domain, by any means including through a gateway, the complete data transfer logs are audited at least monthly.
0673 5 Sep-18 - - S TS Must When exporting data out of each security domain, by any means including through a gateway, the complete data transfer logs are audited at least monthly.
1294 1 Sep-18 O P S TS Should When importing content to a security domain, including through a gateway, monthly audits of the imported content are performed.
1295 1 Sep-18 O P S TS Should When exporting content out of a security domain, including through a gateway, monthly audits of the exported content are performed.
Content filtering
0659 4 Sep-18 O P S TS Must When importing data into a security domain, by any means including a CDS, the data is filtered by a content filter designed for that purpose.
1524 0 Sep-18 - - S TS Should Content filters deployed in CDS are subject to rigorous security assessment to ensure they mitigate content-based threats and cannot be bypassed.
0651 4 Sep-18 O P S TS Must All suspicious, malicious and active content is blocked from entering a security domain.
0652 2 Sep-18 O P S TS Must Any data identified by a content filtering process as suspicious is blocked until reviewed and approved for transfer by a trusted source other than the originator.
1389 1 Sep-18 O P S TS Should Email and web content entering a security domain is automatically run in a dynamic malware analysis sandbox to detect suspicious behaviour.
1284 1 Sep-18 O P - - Should Content validation is performed on all data passing through a content filter with content which fails content validation blocked.
1285 1 Sep-18 - - S TS Must Content validation is performed on all data passing through a content filter with content which fails content validation blocked.
1286 1 Sep-18 O P S TS Should Content conversion is performed for all ingress or egress data transiting a security domain boundary.
1287 1 Sep-18 O P S TS Should Content sanitisation is performed on suitable file types if content conversion is not appropriate for data transiting a security domain boundary.
1288 1 Sep-18 O P S TS Should Antivirus scanning, using multiple different scanning engines, is performed on all content.
1289 1 Sep-18 O P S TS Should The contents from archive/container files are extracted and subjected to content filter checks.
1290 1 Sep-18 O P S TS Should Controlled inspection of archive/container files is performed to ensure that content filter performance or availability is not adversely affected.
1291 1 Sep-18 O P S TS Should Files that cannot be inspected are blocked and generate an alert or notification.
0649 3 Sep-18 O P - - Should A whitelist of permitted content types is created and enforced based on business requirements and the results of a security risk assessment.
0650 3 Sep-18 - - S TS Must A whitelist of permitted content types is created and enforced based on business requirements and the results of a security risk assessment.
1292 1 Sep-18 O P S TS Should The integrity of content is verified where applicable and blocked if verification fails.
0677 4 Sep-18 - - S TS Must If data is signed, the signature is validated before the data is exported.
1293 1 Sep-18 O P S TS Should All encrypted content, traffic and data is decrypted and inspected to allow content filtering.
Date
July 8th, 2019