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AC-17(6) AC · Access Control

Protection of Mechanism Information

LOW MODERATE HIGH
1 Overlay 3 Related Controls
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Requirements NIST SOURCE

Protect information about remote access mechanisms from unauthorized use and disclosure.

Discussion (NIST Supplemental Guidance)

Remote access to organizational information by non-organizational entities can increase the risk of unauthorized use and disclosure about remote access mechanisms. The organization considers including remote access requirements in the information exchange agreements with other organizations, as applicable. Remote access requirements can also be included in rules of behavior (see PL-4 ) and access agreements (see PS-6).

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-17(6) 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. information about remote access mechanisms is protected from unauthorized use and disclosure.

Examine

[SELECT FROM: Access control policy; procedures addressing remote access to the system; system security plan; other relevant documents or records].

Interview

[SELECT FROM: Organizational personnel with responsibilities for implementing or monitoring remote access to the system; system users with knowledge of information about remote access mechanisms; organizational personnel with information security responsibilities].

Overlays

Showing the OT/ICS overlay for the parent control AC-17 — see the AC-17(6) 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)
  • Added: (9)

MODERATE

  • Base control: Included (matches standard baseline)
  • Included: (1) (2) (3) (4)
  • Added: (9) (10)

HIGH

  • Base control: Included (matches standard baseline)
  • Included: (1) (2) (3) (4)
  • Added: (9) (10)

STIGs & CCIs

No STIG checks or CCI mappings are currently loaded for AC-17(6). 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

Other Records

  • procedures addressing remote access to the system
  • other relevant documents or records