9.3 Maintain and Enforce Network-Based URL Filters
Enforce and update network-based URL filters to limit an enterprise asset from connecting to potentially malicious or unapproved websites. Example implementations include category-based filtering, reputation-based filter
4
artefacts
1
held by a system
2
at each review
moderate
to go live
Cloud console / configuration management
where the evidence lives
teal = a system already holds it · olive = produced at each review
system holds itEvidence a system already holds
- Configuration / tooling output demonstrating the safeguard · Cloud console / configuration management
periodic reviewEvidence produced at each review
- Evidence the safeguard is implemented: Maintain and Enforce Network-Based URL Filters · Cloud console / configuration management
- Records showing the safeguard is operating (logs, reports, reviews) · SIEM / log platform
governing documentDocuments that govern the control
- Policy/standard covering CIS Control 9 (Email and Web Browser Protections) · Policy repository / GRC workspace
First move
Start with the 1 of 4 artefacts that already live in a system (Cloud console / configuration management); keep the periodic reviews but log each one as a dated record with a named reviewer.
Common gaps auditors find
- Safeguard implemented for some assets but not all in scope
- No evidence of ongoing operation (point-in-time only)
- Implementation Group IG2 baseline not met
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 sheet9.2 Use DNS Filtering Services · 9.4 Restrict Unnecessary or Unauthorized Browser and Email Client Extensions