Suspicious AWS IoT Credential Issuance via AssumeRoleWithCertificate

ATT&CK techniques

Defense Evasion → Lateral Movement

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
- T1550.001Application Access Token
Cred Access
- T1552.005Cloud Instance Metadata API
Discovery
Lateral Movement
- T1550.001Application Access Token
Collection
C2
Exfiltration
Impact

What it detects

This rule detects the AWS IoT credentials provider AssumeRoleWithCertificate operation which exchanges an X.509 device certificate for temporary IAM role credentials. Wiz documents this as one of the less common ways to obtain credentials in AWS. This is important because this credential path is rarely used outside dedicated IoT fleets so its appearance can indicate an attacker abusing a stolen device certificate to mint role credentials and gain access.

Reporting behind it

Related detections9 linkedT1552.005 — drag to rearrange

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Suspicious AWS IoT Credential Issuance via AssumeRoleWithCertificate

Pivot detection · T1552.005 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.

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