Details

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.e., network disconnect). A logical session (for local, network, and remote access) is initiated whenever a user (or process acting on behalf of a user) accesses an organizational information system. Such user sessions can be terminated (and thus terminate user access) without terminating network sessions.

Session termination terminates all processes associated with a user’s logical session except those processes that are specifically created by the user (i.e., session owner) to continue after the session is terminated.

This capability is typically reserved for specific system functionality where the system owner, data owner, or organization requires additional trigger events based on specific mission needs. Conditions or trigger events requiring automatic session termination can include, for example, targeted responses to certain types of incidents and time-of-day restrictions on information system use.

This policy only applies to gateways (e.g., identity management or authentication gateways) that provide user account services as part of the intermediary services.

NOTE: Nessus has provided the target output to assist in reviewing the benchmark to ensure target compliance.

Solution

If user access control intermediary services are provided, configure the BIG-IP Core as follows:

Configure a policy in the BIG-IP APM module to automatically terminate a user session when organization-defined conditions or trigger events occur that require a session disconnect.

Apply APM policy to the applicable Virtual Server(s) in the BIG-IP LTM module to automatically terminate a user session for a user connected to virtual servers when organization-defined conditions or trigger events occur that require a session disconnect.

Supportive Information

The following resource is also helpful.

• https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_F5_BIG-IP_11-x_Y20M10_STIG.zip

This security hardening control applies to the following category of controls within NIST 800-53: Access Control, Configuration Management.This control applies to the following type of system F5.

References

• 800-53|AC-12
• 800-53|CM-6b.
• CAT|II
• CCI|CCI-000366
• CCI|CCI-002361
• Rule-ID|SV-230214r561159_rule
• STIG-ID|F5BI-LT-000147
• STIG-Legacy|SV-74751
• STIG-Legacy|V-60321
• Vuln-ID|V-230214

Source

• Tenable.com/audits