F5 BIG-IP Access Policy Manager Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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SRG-NET-000517-ALG-000006
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The BIG-IP APM module access policy profile must be configured to automatically terminate user sessions for users connected to virtual servers when organization-defined conditions or trigger events occur that require a session disconnect.
Automatic session termination addresses the termination of user-initiated logical sessions in contrast to the termination of network connections that are associated with communications sessions (i....Rule Medium Severity -
SRG-NET-000519-ALG-000008
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The BIG-IP APM module access policy profile must be configured to display an explicit logoff message to users, indicating the reliable termination of authenticated communications sessions when disconnecting from virtual servers.
If a user cannot explicitly end a session, the session may remain open and be exploited by an attacker; this is referred to as a zombie session. Users need to be aware of whether or not the session...Rule Medium Severity -
SRG-NET-000337-ALG-000096
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The F5 BIG-IP appliance must be configured to set a "Maximum Session Timeout" value of 8 hours or less.
The Maximum Session Timeout setting configures a limit on the maximum amount of time a user's session is active without needing to reauthenticate. If the value is set to 0 (zero), the user's sessio...Rule Medium Severity -
SRG-NET-000345-ALG-000099
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The F5 BIG-IP appliance must be configured to deny access when revocation data is unavailable using OCSP.
Without configuring a local cache of revocation data, there is the potential to allow access to users who are no longer authorized (users with revoked certificates). Caching of CRL files on BIG-IP...Rule Medium Severity -
SRG-NET-000164-ALG-000100
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The F5 BIG-IP appliance must configure OCSP to ensure revoked user credentials are prohibited from establishing an allowed session.
A certificate's certification path is the path from the end entity certificate to a trusted root certification authority (CA). Certification path validation is necessary for a relying party to make...Rule Medium Severity -
SRG-NET-000164-ALG-000100
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The F5 BIG-IP appliance must configure OCSP to ensure revoked machine credentials are prohibited from establishing an allowed session.
A certificate's certification path is the path from the end entity certificate to a trusted root certification authority (CA). Certification path validation is necessary for a relying party to make...Rule Medium Severity -
SRG-NET-000230-ALG-000113
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The F5 BIG-IP appliance must not use the On-Demand Cert Auth VPE agent as part of the APM Policy Profiles.
By requiring mutual authentication before any communication, it becomes significantly challenging for attackers to impersonate a client or server and exploit vulnerabilities. Furthermore, the encry...Rule Medium Severity -
SRG-NET-000355-ALG-000117
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SRG-NET-000015-ALG-000016
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The BIG-IP APM module must be configured with a pre-established trust relationship and mechanisms with appropriate authorities (e.g., Active Directory or authentication, authorization, and accounting (AAA) server) that validate user account access authorizations and privileges when providing access control to virtual servers.
User account and privilege validation must be centralized in order to prevent unauthorized access using changed or revoked privileges. ALGs can implement functions such as traffic filtering, authe...Rule Medium Severity -
SRG-NET-000138-ALG-000089
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SRG-NET-000041-ALG-000022
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The F5 BIG-IP appliance providing user access control intermediary services must display the Standard Mandatory DOD-approved Notice and Consent Banner before granting access to resources.
Display of the DOD-approved use notification before granting access to the network device ensures privacy and security notification verbiage used is consistent with applicable federal laws, Executi...Rule Medium Severity
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