zt_net_021 — VPN Gateway uses a deprecated Basic SKU¶
Summary
Severity: Medium · Pillar: Network · Chain role: AMPLIFIER
Description¶
VPN Gateway Basic SKU is end-of-life for commercial use as of Q3 2025. Basic gateways lack BGP support, active-active failover, and the modern IKEv2 cipher suite. Workloads still on Basic should migrate to VpnGw1/2/3 (or ErGw1AZ for ExpressRoute). Basic will stop receiving security patches.
Mapping¶
| Framework | Control / Reference |
|---|---|
| NIST 800-53 | SC-8 |
| NIST 800-207 | Tenet 5 - All resource authentication and authorization are dynamic and strictly enforced before access is allowed |
| CIS Azure | — |
| MITRE ATT&CK Technique | T1557 |
| MITRE ATT&CK Tactic | Credential Access |
| Zero-Trust Tenet | Tenet 5 |
| Framework tags | nist-800-207, argus-zt |
Source¶
Rule defined at policies/azure/zt/network/zt_net_021.rego.