The F5 BIG-IP appliance must be configured to set a Maximum Session Timeout value of eight hours or less.

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
medium	V-266169	F5BI-AP-300158	F5BI-AP-300158	SV-266169r1024401_rule	2024-09-20	1

Description
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 zero, the user's session is active until either the user terminates the session or the Inactivity Timeout value is reached (the default value is set to 604,800 seconds). When determining how long the maximum user session can last, it may be useful to review the access policy. For example, if the access policy requires that the user's antivirus signatures cannot be older than eight hours, the Maximum Session Timeout must not exceed that time limit. This is an APM Policy setting, which applies to APM authentication profiles for Virtual Servers and SSL VPN.

Description

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 zero, the user's session is active until either the user terminates the session or the Inactivity Timeout value is reached (the default value is set to 604,800 seconds). When determining how long the maximum user session can last, it may be useful to review the access policy. For example, if the access policy requires that the user's antivirus signatures cannot be older than eight hours, the Maximum Session Timeout must not exceed that time limit. This is an APM Policy setting, which applies to APM authentication profiles for Virtual Servers and SSL VPN.

ℹ️ Check
If the BIG-IP APM module does not provide user authentication intermediary services, this is not applicable. From the BIG-IP GUI: 1. Access. 2. Profiles/Policies. 3. Access Profiles. 4. Click the access profile name. 5. In the "Settings" section, verify the value for "Maximum Session Timeout" is set to 28800 seconds (eight hours) or less. If the F5 BIG-IP APM access policy is not configured for a "Maximum Session Timeout" value of 28,800 seconds (eight hours) or less, this is a finding.

ℹ️ Check

If the BIG-IP APM module does not provide user authentication intermediary services, this is not applicable. From the BIG-IP GUI: 1. Access. 2. Profiles/Policies. 3. Access Profiles. 4. Click the access profile name. 5. In the "Settings" section, verify the value for "Maximum Session Timeout" is set to 28800 seconds (eight hours) or less. If the F5 BIG-IP APM access policy is not configured for a "Maximum Session Timeout" value of 28,800 seconds (eight hours) or less, this is a finding.

✔️ Fix
From the BIG-IP GUI: 1. Access. 2. Profiles/Policies. 3. Access Profiles. 4. Click the access profile name. 5. In the "Settings" section, set the value for "Maximum Session Timeout" to 28800 seconds (eight hours) or less. Note: If the setting is grayed out, check the box to the right of the setting and then update it. 6. Click "Update". 7. Click "Apply Access Policy".