The F5 BIG-IP appliance must be configured to deny access when revocation data is unavailable using OCSP.
An XCCDF Rule
Description
<VulnDiscussion>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 is not feasible or possible due to the large sizes of DOD/DISA CRL files. Use the alternate mitigation, configuring the system to deny access when revocation data is unavailable, which is done in the APM VPE.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>
- ID
- SV-260050r947408_rule
- Severity
- Medium
- References
- Updated
Remediation - Manual Procedure
Update the OCSP Auth.
From the BIG-IP GUI:
1. Access.
2. Profiles/Policies.
3. Access Profiles.