16.4 Establish and Manage an Inventory of Third-Party Software Components
Maintain a current list (a bill of materials) of the external components that development relies on, including components planned for future use and the risks each could pose. Go through that list monthly or more often for changes and updates and confirm each component is still supported. Implementation Groups: IG2 and IG3 (not in the IG1 baseline; applies from IG2 upward). Asset type: Software. Security function: Identify.
Source: CIS Controls v8.1, 16.4. 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 CIS Controls v8.1 in the compliance library.
Each safeguard shows its Implementation Groups. IG1 is the essential baseline for every enterprise, IG2 adds to it, IG3 is all 153. Version 8.1 adds the Govern security function and asks for more processes to be documented; numbering is unchanged from v8.
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
none for this control
periodic reviewEvidence produced at each review
- Monthly review records or automated SCA reports · Source control / CI pipeline
governing documentDocuments that govern the control
- SBOM or dependency inventory per application · Policy repository / GRC workspace
- Risk notes and support status for each component · Policy repository / GRC workspace
First move
Common gaps auditors find
- Transitive dependencies missing
- SBOM generated once and never refreshed
- Unsupported libraries still in use
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 sheet16.3 Perform Root Cause Analysis on Security Vulnerabilities · 16.5 Use Up-to-Date and Trusted Third-Party Software Components