DET-09: Grant created on the attestation-gated key¶
A KMS grant on the state key. Grants are evaluated outside the key policy's attestation conditions, so this is a bypass of the attestation gate.
| Property | Value |
|---|---|
| Severity | critical |
| Platform | AWS Nitro Enclaves |
| Group | tee |
| Log source | CloudTrail · KMS |
| Policy | P-03 |
| Related check | KMS-01: KMS key policy enforces RecipientAttestation |
Fires when¶
eventName == CreateGrant AND keyId IN attested_keys
How it runs¶
untrust detect --platform nitro reads CloudTrail in the region you pass with --region, 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.