MA-5 Maintenance personnel
Requires a process for authorizing maintenance personnel with a maintained list of authorized maintenance organizations and individuals, verification that unescorted maintainers hold the required access authorizations, a
4
artefacts
1
held by a system
2
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
system holds itEvidence a system already holds
- Escort logs for maintenance visits by unauthorized personnel · SIEM / log platform
periodic reviewEvidence produced at each review
- Verification records of access authorizations for unescorted maintainers · Document repository
- Designation of supervising personnel and evidence of supervision during visits · Document repository
governing documentDocuments that govern the control
- Authorized maintenance personnel and organization list, kept current · Document repository
First move
Start with the 1 of 4 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
- Vendor engineers admitted on the strength of a company name rather than an individual authorization
- Escort assigned but lacking the technical competence to supervise the work
- Authorized list never pruned as vendor staff change
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 sheetMA-4 Nonlocal maintenance · MA-6 Timely Maintenance. Obtain maintenance support and/or spare parts for [organization-defined] within [organization-defined] of failure