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AC-2(4) AC · Access Control

Automated Audit Actions

LOW ✓ MODERATE ✓ HIGH
1 Overlay 2 Related Controls
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Requirements NIST SOURCE

Automatically audit account creation, modification, enabling, disabling, and removal actions.

Discussion (NIST Supplemental Guidance)

Account management audit records are defined in accordance with AU-02 and reviewed, analyzed, and reported in accordance with AU-06.

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-2(4) 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. account creation is automatically audited;
  2. account modification is automatically audited;
  3. account enabling is automatically audited;
  4. account disabling is automatically audited;
  5. account removal actions are automatically audited.

Examine

[SELECT FROM: Access control policy; procedures addressing account management; system design documentation; system configuration settings and associated documentation; notifications/alerts of account creation, modification, enabling, disabling, and removal actions; system audit records; system security plan; other relevant documents or records].

Interview

[SELECT FROM: Organizational personnel with account management responsibilities; system/network administrators; organizational personnel with information security responsibilities].

Test

[SELECT FROM: Automated mechanisms implementing account management functions].

Overlays

Showing the OT/ICS overlay for the parent control AC-2 — see the AC-2(4) 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)
  • Included: (1) (2) (3) (4) (5) (13)
  • Added: (11) (12)

HIGH

  • Base control: Included (matches standard baseline)
  • Included: (1) (2) (3) (4) (5) (13)
  • Excluded: (11) (12)

STIGs & CCIs

No STIG checks or CCI mappings are currently loaded for AC-2(4). 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

  • Automated mechanisms implementing account management functions

Other Records

  • procedures addressing account management
  • notifications/alerts of account creation, modification, enabling, disabling, and removal actions
  • system audit records
  • other relevant documents or records