Suspicious Kubelet Started With Anonymous Auth and AlwaysAllow Authorization

ATT&CK techniques

Initial Access

Recon
Resource Dev
Initial Access
- T1190Exploit Public-Facing Application
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects the kubelet being started with anonymous authentication enabled and its authorization mode set to AlwaysAllow which disables access control on the kubelet API. Wiz lists this insecure configuration as a Kubernetes control plane initial access vector. This is important because it lets unauthenticated callers reach the kubelet to read secrets and execute commands inside running pods leading to node and cluster compromise.

Reporting behind it

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Suspicious Kubelet Started With Anonymous Auth and AlwaysAllow Authorization

Pivot detection · T1190 · 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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