What evidence do auditors commonly ask for on IA-5(13) Authenticator Management | Expiration of Cached Authenticators?

Configuration setting the cached credential lifetime; Exported policy or screenshots showing the enforced expiry; Test evidence that a cached authenticator is refused after the period.

What is the most common gap auditors find on IA-5(13)?

Cached credential expiry left at the operating system default

FedRAMP High (NIST SP 800-53 Rev 5 baseline) · IA - Identification and Authentication

`IA-5(13)` Authenticator Management | Expiration of Cached Authenticators

Prohibit the use of cached authenticators after a FedRAMP-defined time period.

Source: FedRAMP High (NIST SP 800-53 Rev 5 baseline), IA-5(13). The statement above is our statement of the clause, read from the published text and cited so you can check it against the official text, not the instrument verbatim. Open FedRAMP High (NIST SP 800-53 Rev 5 baseline) in the compliance library.

A FedRAMP baseline is a subset of NIST SP 800-53 Rev 5, enhancements included.

artefacts

held by a system

at each review

moderate

to go live

Identity provider / directory

where the evidence lives

teal = a system already holds it · olive = produced at each review. To go live: easy when half or more of the artefacts are already held by a system, moderate from a quarter to a half, hard below a quarter.

These are the artefacts auditors commonly ask for on this requirement, our guidance rather than text from the standard. Your assessor decides what is sufficient in your context, and asks for samples across the period when a report covers one.

system holds itEvidence a system already holds

Configuration setting the cached credential lifetime · Identity provider / directory

periodic reviewEvidence produced at each review

Test evidence that a cached authenticator is refused after the period · Identity provider / directory

governing documentDocuments that govern the control

Exported policy or screenshots showing the enforced expiry · Policy repository / GRC workspace

First move

Start with the 1 of 3 artefacts that already live in a system (Identity provider / directory); keep the periodic reviews but log each one as a dated record with a named reviewer.

Common gaps auditors find

Cached credential expiry left at the operating system default
Mobile and offline endpoints excluded from the setting

Do this for your whole sheet

Paste the rows you run your controls from and get this mapping for every control at once, with the periodic-review ones flagged and a first move per row. No account for the first run.

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IA-5(8) Multiple System Accounts · IA-6 Authentication Feedback