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MA-5(5) MA · Maintenance

Non-system Maintenance

LOW MODERATE HIGH
1 Overlay 0 Related Controls
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Requirements NIST SOURCE

Ensure that non-escorted personnel performing maintenance activities not directly associated with the system but in the physical proximity of the system, have required access authorizations.

Discussion (NIST Supplemental Guidance)

Personnel who perform maintenance activities in other capacities not directly related to the system include physical plant personnel and custodial personnel.

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 MA-5(5) 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. non-escorted personnel performing maintenance activities not directly associated with the system but in the physical proximity of the system have required access authorizations.

Examine

[SELECT FROM: Maintenance policy; procedures addressing maintenance personnel; system media protection policy; access control policy and procedures; physical and environmental protection policy and procedures; maintenance records; access control records; access authorizations; system security plan; other relevant documents or records].

Interview

[SELECT FROM: Organizational personnel with system maintenance responsibilities; organizational personnel with personnel security responsibilities; organizational personnel with physical access control responsibilities; organizational personnel with information security responsibilities].

Overlays

Showing the OT/ICS overlay for the parent control MA-5 — see the MA-5(5) 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)
  • Included: (1)

STIGs & CCIs

No STIG checks or CCI mappings are currently loaded for MA-5(5). 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

  • Maintenance policy
  • system media protection policy
  • access control policy and procedures
  • physical and environmental protection policy and procedures
  • system security plan

Other Records

  • procedures addressing maintenance personnel
  • maintenance records
  • access control records
  • access authorizations
  • other relevant documents or records