Malicious Kubernetes Node Escape via chroot to Node kubectl Path

ATT&CK techniques

Priv Esc

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
- T1611Escape to Host
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects a chroot into the node-local kubectl directory used on managed Kubernetes nodes, a container-to-node escape technique observed in real-world cluster attacks after landing in a privileged pod. Breaking out to the node host filesystem gives the attacker control over the worker node and any credentials stored on it.

Reporting behind it

Related detections9 linkedT1611 — drag to rearrange

Suspicious Kubernetes Pod Deployment with Privileged or Host Namespace Flags

Suspicious Privileged or Host Namespace Kubernetes Pod Creation

Malicious Privileged Container Creation in Kubernetes (via audit)

Malicious Docker Socket Access via Curl Unix Socket

Suspicious Cgroup release_agent Abuse for Container Escape

Malicious Direct etcd Write to Kubernetes Registry via ETCDCTL_API (via process_creation)

Malicious Container Escape via core_pattern Hijack (via process_creation)

Kubernetes Pod Created With hostPath Volume Mount

Kubernetes Privileged Pod Created via Pod Creation Requests

Malicious Kubernetes Node Escape via chroot to Node kubectl Path

Pivot detection · T1611 · 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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