DET-C4: Key decrypt granted outside the attestation gate¶
SetIamPolicy on the state key gave decrypt to a member other than the workload identity pool. That member can release the key without any attestation.
| Property | Value |
|---|---|
| Severity | critical |
| Platform | GCP Confidential Space |
| Group | tee |
| Log source | Cloud Audit Logs · Cloud KMS IAM |
| Policy | P-03 |
| Related check | CSPACE-KMS-01: Cloud KMS decrypt is federated through the attested pool |
Fires when¶
SetIamPolicy on the KMS key AND cryptoKeyDecrypter granted to a member outside the workload pool
How it runs¶
untrust detect --platform sev-snp reads the project's Cloud Audit Logs over the last --since minutes (default 60).
A match is a detection event with this rule's ID. Upload it to the console to alert on it; see Runtime detections.