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CM-2(3) CM · Configuration Management

Retention of Previous Configurations

LOW ✓ MODERATE ✓ HIGH
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Requirements NIST SOURCE

Retain [number] of previous versions of baseline configurations of the system to support rollback.

Discussion (NIST Supplemental Guidance)

Retaining previous versions of baseline configurations to support rollback include hardware, software, firmware, configuration files, configuration records, and associated documentation.

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 CM-2(3) 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. the number of previous baseline configuration versions to be retained is defined;
  2. <CM-02(03)_ODP number> of previous baseline configuration version(s) of the system is/are retained to support rollback.

Examine

[SELECT FROM: Configuration management policy; procedures addressing the baseline configuration of the system; configuration management plan; system architecture and configuration documentation; system configuration settings and associated documentation; copies of previous baseline configuration versions; system security plan; other relevant documents or records].

Interview

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

Test

[SELECT FROM: Organizational processes for managing baseline configurations].

Overlays

Showing the OT/ICS overlay for the parent control CM-2 — see the CM-2(3) 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: (2) (3) (7)

HIGH

  • Base control: Included (matches standard baseline)
  • Included: (2) (3) (7)

STIGs & CCIs

No STIG checks or CCI mappings are currently loaded for CM-2(3). 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

  • system security plan

Configuration

  • Configuration management policy
  • procedures addressing the baseline configuration of the system
  • configuration management plan
  • system architecture and configuration documentation
  • system configuration settings and associated documentation
  • copies of previous baseline configuration versions

Testing

  • Organizational processes for managing baseline configurations

Other Records

  • other relevant documents or records