cis_3_4 — Ensure default network access rule is Deny on storage accounts¶
Summary
Severity: High · Pillar: Data · Chain role: AMPLIFIER
Description¶
Storage accounts should use default-deny network ACLs and explicitly allow trusted subnets or service endpoints. Default-allow exposes data to the entire internet.
Mapping¶
| Framework | Control / Reference |
|---|---|
| NIST 800-53 | AC-4 |
| NIST 800-207 | Tenet 2 - Secure communication |
| CIS Azure | 3.4 |
| MITRE ATT&CK Technique | T1530 |
| MITRE ATT&CK Tactic | Collection |
| Zero-Trust Tenet | Tenet 2 |
| Framework tags | nist-800-207, cis-azure-2.0, nist-800-53 |
Source¶
Rule defined at policies/azure/cis/storage/cis_3_4.rego.