SI-7 Software, Firmware, and Information Integrity
Verifies the integrity of software and firmware received from suppliers, before and after installation.
3
artefacts
0
held by a system
2
at each review
hard
to go live
Document repository
where the evidence lives
teal = a system already holds it · olive = produced at each review
system holds itEvidence a system already holds
none for this control
periodic reviewEvidence produced at each review
- Integrity verification method and evidence for received software and firmware · Document repository
- Periodic re-verification records · Document repository
governing documentDocuments that govern the control
- Baseline hashes or signatures retained · Policy repository / GRC workspace
First move
This control is evidenced by people and documents, not systems. Put the document under version control with an owner and review date, and log each review as a record with reviewer and date. Do not try to automate it.
Common gaps auditors find
- integrity checked at install and never again
- firmware integrity unverifiable and the risk unaccepted
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 sheetSI-5 Security Alerts, Advisories, and Directives · SI-12 Information Management and Retention