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AWS EKS RBAC Wildcard Elevation on Existing Role

Flags an existing Role or ClusterRole being changed (patch or update) to a wildcard on every API resource and verb. This may be indicative of a deliberate privilege expansion but may also be a nefarious attempt at…

Description

Flags an existing Role or ClusterRole being changed (patch or update) to a wildcard on every API resource and verb. This may be indicative of a deliberate privilege expansion but may also be a nefarious attempt at privilege escalation.

Detection logic

Its licence does not clear it for publishing here

Sunturai publishes a detection's own text where the licence it arrived under has been reviewed and permits it, and Elastic License 2.0 has not. The query as its source wrote it, its canonical form and the hash that pins this revision are in the workspace record.

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Detection requirements

Platform
ContainersESXiIaaSIdentity ProviderLinuxmacOSNetwork DevicesOffice SuiteSaaSWindows

The rule states no platform. This is derived from the ATT&CK technique it maps to.

Known benign triggers

  • Platform installers, GitOps controllers, and emergency break-glass roles sometimes ship or widen wildcard ClusterRoles; correlate with change records and narrow by user or service account when baselined.

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