NIST SP 800-53 Rev. 5·Control CM-10(1)·high·Component: Configuration Management

What this control requires

Establish restrictions on open-source software use to ensure secure source code access, vulnerability remediation, and licensing compliance using software asset management systems. This control supports the Restrictions capability within the Configuration Management family.
— NIST SP 800-53 Rev. 5, Control CM-10(1)

In plain English

Establish restrictions on open-source software use to ensure secure source code access, vulnerability remediation, and licensing compliance using software asset management systems. In practice, this means you can prove you restrictions management-level controls on a defined cadence.

Why it matters

SP 800-53 is the catalogue every U.S. federal authorisation (FedRAMP, FISMA, CMMC) and most regulated industries point at. A missing control surfaces as a Plan of Action & Milestones (POA&M) item that an Authorizing Official must approve before the Authority To Operate is granted or renewed.

This control is rated high. Auditors expect a named owner, a remediation SLA, and a tooling artefact that evidences continuous operation.

What an auditor looks for

A 3PAO (FedRAMP) or Independent Assessor (NIST RMF) tests against NIST SP 800-53A assessment procedures. For each control they expect a documented implementation that addresses every assessment objective (Examine, Interview, Test) and an implementation summary in the System Security Plan.

Within Configuration Management, the assessor will trace your implementation back to the catalogue reference (Control CM-10(1)) and look for objective evidence on the latest two assessment cycles.

How to implement

Vulnerability Management

Scanners. Pair an unauthenticated scanner (Nessus / Qualys / Tenable.io) for external surface with an authenticated agent for OS/library CVEs on every host.

SLA. Document remediation SLAs by CVSS / EPSS: critical 7 days, high 30 days, medium 90 days; report monthly trend to leadership.

Containers. Scan images in CI (Trivy / Grype / Snyk Container) AND at runtime; block deploys on critical findings without exception.

Operational checklist

  • Restrictions. Document the trigger, the owner and the cadence.
  • Access. Document the trigger, the owner and the cadence.
  • Configuration. Document the trigger, the owner and the cadence.
  • Review. Document the trigger, the owner and the cadence.
  • Identity. Document the trigger, the owner and the cadence.
  • Scope: management, source, identity, configuration, software, compliance, review, capability.

Evidence to collect

  • Identity Scan. IAM / IdP exports — Entra ID, Okta, IAM Identity Center, Workspace directory — showing accounts, roles, MFA state and last sign-in.
  • Infra Scan. Continuous infrastructure-posture telemetry — AWS Config, Azure Policy compliance, GCP Organisation Policy, Wiz / Prisma findings.

Identity analytics (Okta, SailPoint, Access Analyzer) demonstrates least-privilege. Focus: Open-Source Software.

Common pitfalls

  • Scans that hit only the perimeter; missing authenticated scans of OS, runtime libs and base images so most CVEs are invisible.

How it maps to other frameworks

Computed from shared tags, control component and key-operation subjects — handy when you are reconciling controls across an audit.

Related controls in NIST SP 800-53 Rev. 5

References

Topics: identity accessidentity managementaccess reviewprivileged accessvulnerability management