services / Google Cloud / Identity Aware Proxy tunnel zones resource type.

Refers to all IAP secured VMs in a particular zone

IAP is used to control access to cloud services. Changes to IAP related settings could remove access from mission-critical applications or grant an attacker access to sensitive resources.

iap.​tunnelZones.​setIamPolicy

Risks

1. Policy destruction (CRITICAL)
2. Privilege escalation (CRITICAL)
3. Denial-of-access (EVASION)

Scope: CRITICAL

This privilege may grant access to sensitive data from a significant fraction of organizational functions, allow interruption of critical organizational services, or its exploit could lead to significant privilege escalation.

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