What evidence do auditors commonly ask for on NS-3 Deploy firewall at the edge of enterprise network?

Firewall deployment architecture; Rule set export; Threat intelligence configuration; Change management for rule changes.

Azure Security Benchmark v3 (renamed Microsoft cloud security benchmark) · Network Security

`NS-3` Deploy firewall at the edge of enterprise network

Deploy Azure Firewall or third party NVA at the edge to inspect and control inbound and outbound traffic with documented rules.

Source: Azure Security Benchmark v3 (renamed Microsoft cloud security benchmark), NS-3. 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 Azure Security Benchmark v3 (renamed Microsoft cloud security benchmark) in the compliance library.

artefacts

held by a system

at each review

easy

to go live

Cloud console / configuration management

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

Firewall deployment architecture · Source control / CI pipeline
Rule set export · Cloud console / configuration management
Threat intelligence configuration · Cloud console / configuration management

periodic reviewEvidence produced at each review

none for this control

governing documentDocuments that govern the control

Change management for rule changes · Policy repository / GRC workspace

First move

Automate the pull from your Cloud console / configuration management. Configuration snapshots and change history from the cloud console or IaC repository, diffed against the baseline.

Common gaps auditors find

No egress filtering
Threat intel feature disabled
Rules unreviewed for months

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

NS-2 Secure cloud services with network controls · NS-4 Deploy intrusion detection/intrusion prevention systems (IDS/IPS)