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IA-12(6) IA · Identification and Authentication

Accept Externally-proofed Identities

LOW MODERATE HIGH
1 Overlay 4 Related Controls
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Requirements NIST SOURCE

Accept externally-proofed identities at [identity assurance level].

Discussion (NIST Supplemental Guidance)

To limit unnecessary re-proofing of identities, particularly of non-PIV users, organizations accept proofing conducted at a commensurate level of assurance by other agencies or organizations. Proofing is consistent with organizational security policy and the identity assurance level appropriate for the system, application, or information accessed. Accepting externally-proofed identities is a fundamental component of managing federated identities across agencies and organizations.

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 IA-12(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. an identity assurance level for accepting externally proofed identities is defined;
  2. externally proofed identities are accepted <IA-12(06)_ODP identity assurance level>.

Examine

[SELECT FROM: Identification and authentication policy; procedures addressing identity proofing; system security plan; other relevant documents or records].

Interview

[SELECT FROM: Organizational personnel with system operations responsibilities; organizational personnel with information security responsibilities; system/network administrators; system developers; organizational personnel with identification and authentication responsibilities].

Test

[SELECT FROM: Mechanisms supporting and/or implementing identification and authentication capabilities].

Overlays

Showing the OT/ICS overlay for the parent control IA-12 — see the IA-12(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

Not applicable at this tier.

MODERATE

  • Base control: Included (matches standard baseline)
  • Included: (2) (3) (5)

HIGH

  • Base control: Included (matches standard baseline)
  • Included: (2) (3) (4) (5)
  • Added: (1)

STIGs & CCIs

No STIG checks or CCI mappings are currently loaded for IA-12(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

  • Identification and authentication policy
  • system security plan

Testing

  • Mechanisms supporting and/or implementing identification and authentication capabilities

Other Records

  • procedures addressing identity proofing
  • other relevant documents or records