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AC-3(8) AC · Access Control

Revocation of Access Authorizations

LOW MODERATE HIGH
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Requirements NIST SOURCE

Enforce the revocation of access authorizations resulting from changes to the security attributes of subjects and objects based on [rules].

Discussion (NIST 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.

Implementation Guidance

Engineering Interpretation

Original engineering commentary written for this explorer — not NIST source text and not authoritative guidance.

No engineering interpretation has been authored for AC-3(8) yet. This section is architected to receive it — see the Requirements and Assessment sections above for the authoritative NIST source content in the meantime.

Assessment

NIST SP 800-53A REV 5.2.0

Assessment Objectives

  1. rules governing the timing of revocations of access authorizations are defined;
  2. revocation of access authorizations is enforced, resulting from changes to the security attributes of subjects based on <AC-03(08)_ODP rules>;
  3. revocation of access authorizations is enforced resulting from changes to the security attributes of objects based on <AC-03(08)_ODP rules>.

Examine

[SELECT FROM: Access control policy; procedures addressing access enforcement; system design documentation; system configuration settings and associated documentation; rules governing revocation of access authorizations, system audit records; system security plan; other relevant documents or records].

Interview

[SELECT FROM: Organizational personnel with access enforcement responsibilities; system/network administrators; organizational personnel with information security responsibilities; system developers].

Test

[SELECT FROM: Mechanisms implementing access enforcement functions].

Overlays

Showing the OT/ICS overlay for the parent control AC-3 — see the AC-3(8) entries within each baseline below.

OT/ICS Overlay SP 800-82r3

NIST SP 800-82r3 Appendix F, Table 22. Blank baseline means the control/control enhancement is not selected in that initial OT baseline.

LOW

  • Base control: Included (matches standard baseline)

MODERATE

  • Base control: Included (matches standard baseline)

HIGH

  • Base control: Included (matches standard baseline)
  • Added: (11)

STIGs & CCIs

No STIG checks or CCI mappings are currently loaded for AC-3(8). This section is architected to display, per product: STIG ID, Finding ID, Severity, Title, Description, Check, Fix, CCI, and NIST control mapping — but nothing is populated here until a real DISA STIG/CCI dataset is ingested.

Learn more about STIG/CCI integration →

Evidence

Potential Evidence — Derived

Categorized from the SP 800-53A "Examine"/"Test" artifact list above by keyword — not an authoritative NIST evidence list.

Policy

  • Access control policy
  • system security plan

Configuration

  • system design documentation
  • system configuration settings and associated documentation

Testing

  • Mechanisms implementing access enforcement functions

Other Records

  • procedures addressing access enforcement
  • rules governing revocation of access authorizations, system audit records
  • other relevant documents or records