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AC-17(1) AC · Access Control

Monitoring and Control

LOW ✓ MODERATE ✓ HIGH
1 Overlay 4 Related Controls
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Requirements NIST SOURCE

Employ automated mechanisms to monitor and control remote access methods.

Discussion (NIST Supplemental Guidance)

Monitoring and control of remote access methods allows organizations to detect attacks and help ensure compliance with remote access policies by auditing the connection activities of remote users on a variety of system components, including servers, notebook computers, workstations, smart phones, and tablets. Audit logging for remote access is enforced by AU-2 . Audit events are defined in AU-2a.

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(1) 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. automated mechanisms are employed to monitor remote access methods;
  2. automated mechanisms are employed to control remote access methods.

Examine

[SELECT FROM: Access control policy; procedures addressing remote access to the system; system design documentation; system configuration settings and associated documentation; system audit records; system monitoring records; system security plan; other relevant documents or records].

Interview

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

Test

[SELECT FROM: Automated mechanisms monitoring and controlling remote access methods].

Overlays

Showing the OT/ICS overlay for the parent control AC-17 — see the AC-17(1) 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(1). 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 monitoring and controlling remote access methods

Other Records

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