NIST 800-53 r5 · Controls catalogue · Family MA
MA-4Nonlocal Maintenance
Approve and monitor nonlocal maintenance and diagnostic activities; Allow the use of nonlocal maintenance and diagnostic tools only as consistent with organizational policy and documented in the security plan for the system; Employ strong authentication in the establishment of nonlocal maintenance and diagnostic sessions; Maintain records for nonlocal maintenance and diagnostic activities; and Terminate session and network connections when nonlocal maintenance is completed.
Last updated: 22 August 2026 07:11 UTC
Implementations targeting this control (0)
- No implementations targeting this control yet.
ATT&CK techniques this control mitigates (0)
- No ATT&CK techniques mapped to this control yet.
Weaknesses this control addresses (5)AI-assisted
CWEs ranked by how often they appear in real CVEs. The rationale describes how this control reduces exploitability of each weakness class.
| CWE | Name | CVEs | Why this control addresses it |
|---|---|---|---|
CWE-284 | Improper Access Control | 6,900+ | Approving and monitoring nonlocal maintenance per policy enforces access control over remote diagnostic activities. |
CWE-287 | Improper Authentication | 5,200+ | Requiring strong authentication for establishing nonlocal maintenance sessions directly mitigates improper authentication. |
CWE-306 | Missing Authentication for Critical Function | 3,300+ | Mandating authentication for nonlocal maintenance addresses missing authentication for this critical function. |
CWE-613 | Insufficient Session Expiration | 600+ | Terminating sessions and network connections upon completion prevents insufficient session expiration. |
CWE-778 | Insufficient Logging | 28 | Maintaining records of nonlocal maintenance activities ensures logging to support detection of issues. |
Top CVEs where this control is the strongest mitigation
| CVE | Risk | CVSS | EPSS | Match |
|---|---|---|---|---|
| No CVEs annotated to this control yet — the per-CVE backfill is in progress. | ||||