What evidence do auditors commonly ask for on RA-5(8) Vulnerability Monitoring and Scanning | Review Historic Audit Logs?

Procedure linking a new vulnerability finding to a retrospective log review; Log retention evidence covering the defined lookback period; Completed retrospective reviews with their conclusions.

What is the most common gap auditors find on RA-5(8)?

Log retention shorter than the lookback period the procedure claims

FedRAMP High (NIST SP 800-53 Rev 5 baseline) · RA - Risk Assessment

`RA-5(8)` Vulnerability Monitoring and Scanning | Review Historic Audit Logs

Review historic audit logs to determine if a vulnerability identified in a FedRAMP-defined system has been previously exploited within a FedRAMP-defined time period.

Source: FedRAMP High (NIST SP 800-53 Rev 5 baseline), RA-5(8). 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

SIEM / log platform

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

Log retention evidence covering the defined lookback period · SIEM / log platform

periodic reviewEvidence produced at each review

Procedure linking a new vulnerability finding to a retrospective log review · Vulnerability scanner / patch tooling
Completed retrospective reviews with their conclusions · Policy repository / GRC workspace

governing documentDocuments that govern the control

none for this control

First move

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

Common gaps auditors find

Log retention shorter than the lookback period the procedure claims
Retrospective review done only after a major incident rather than as routine

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.

Build my evidence sheet

RA-5(5) Privileged Access · RA-5(11) Vulnerability Monitoring and Scanning | Public Disclosure Program (RA-5(11))