New attack technique: Grant IAP Tunnel Access to an External Identity (gcp.execution.iap-tunnel-session) - #796
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… (gcp.execution.iap-tunnel-session) Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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| <span style="font-variant: small-caps;">Detonation</span>: | ||
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| - Add a project-level IAM binding granting <code>roles/iap.tunnelResourceAccessor</code> | ||
| to the attacker-controlled service account |
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I think we need to give more detail on what external binding we're using here. See sample behavior at https://stratus-red-team.cloud/attack-techniques/GCP/gcp.persistence.backdoor-service-account-policy/#description
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What does this PR do?
New attack technique:
gcp.execution.iap-tunnel-sessionMotivation
GCP parity with existing AWS attack techniques.
Test results
stratus detonate gcp.execution.iap-tunnel-sessionSetIamPolicygrantingroles/iap.tunnelResourceAccessorappears in GCP Admin Activity audit logsChecklist