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IA-12(5) IA · Identification and Authentication

Address Confirmation

LOW ✓ MODERATE ✓ HIGH
1 Overlay 1 Related Control
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Requirements NIST SOURCE

Require that a [one of: registration code; notice of proofing] be delivered through an out-of-band channel to verify the users address (physical or digital) of record.

Discussion (NIST Supplemental Guidance)

To make it more difficult for adversaries to pose as legitimate users during the identity proofing process, organizations can use out-of-band methods to ensure that the individual associated with an address of record is the same individual that participated in the registration. Confirmation can take the form of a temporary enrollment code or a notice of proofing. The delivery address for these artifacts is obtained from records and not self-asserted by the user. The address can include a physical or digital address. A home address is an example of a physical address. Email addresses and telephone numbers are examples of digital addresses.

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(5) 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. one of the following PARAMETER VALUES is selected: {registration code; notice of proofing};
  2. a <IA-12(05)_ODP SELECTED PARAMETER VALUE> is delivered through an out-of-band channel to verify the user�s address (physical or digital) of record.

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(5) 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(5). 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