AC-3(8)—Revocation Of Access Authorizations
>Control Description
Enforce the revocation of access authorizations resulting from changes to the security attributes of subjects and objects based on ⚙organization-defined rules governing the timing of revocations of access authorizations.
>Cross-Framework Mappings
>Supplemental Guidance
Revocation of access rules may differ based on the types of access revoked. For example, if a subject (i.e., user or process acting on behalf of a user) is removed from a group, access may not be revoked until the next time the object is opened or the next time the subject attempts to access the object. Revocation based on changes to security labels may take effect immediately.
Organizations provide alternative approaches on how to make revocations immediate if systems cannot provide such capability and immediate revocation is necessary.
>Assessment Interview Topics
Questions assessors commonly ask
Process & Governance:
- •What formal policies and procedures govern the implementation of AC-3(8) (Revocation Of Access Authorizations)?
- •Who are the designated roles responsible for implementing, maintaining, and monitoring AC-3(8)?
- •How frequently is the AC-3(8) policy reviewed and updated, and what triggers policy changes?
- •What training or awareness programs ensure personnel understand their responsibilities related to AC-3(8)?
Technical Implementation:
- •Describe the specific technical mechanisms or controls used to enforce AC-3(8) requirements.
- •What automated tools, systems, or technologies are deployed to implement AC-3(8)?
- •How is AC-3(8) integrated into your system architecture and overall security posture?
- •What configuration settings, parameters, or technical specifications enforce AC-3(8) requirements?
Evidence & Documentation:
- •What documentation demonstrates the complete implementation of AC-3(8)?
- •What audit logs, records, reports, or monitoring data validate AC-3(8) compliance?
- •Can you provide evidence of periodic reviews, assessments, or testing of AC-3(8) effectiveness?
- •What artifacts would you present during a FedRAMP assessment to demonstrate AC-3(8) compliance?
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