Analytics BIOC Informational
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Kubernetes pod creation with host network

An identity created a Kubernetes pod attached to the host network. This may indicate an adversary attempting to access services bound to localhost, sniff traffic on any interface on the host, and potentially bypass the network policy.

Module:
Cortex Cloud
Licensed by:
Cloud Runtime Security (CRS)
Data source:
AWS Audit Log, Azure Audit Log, Gcp Audit Log, Kubernetes Audit Logs
ATT&CK tactics: Privilege Escalation (TA0004) Execution (TA0002)
ATT&CK techniques: Escape to Host (T1611) Deploy Container (T1610)
Detector tags: Kubernetes - API
Attacker's goals:

Access services bound to localhost. Sniff traffic on any interface on the host. Bypass network policy.

Investigative actions:

Check the identity's role designation in the organization. Inspect for any unusual access to localhost services. Inspect for any network sniffing tool being used inside the Kubernetes Pod.

Test period:
N/A (single event)
Deduplication:
5 Days
3 variations:
  • Kubernetes pod creation with host network for the first time in the cluster Low (parent: Informational)
  • Kubernetes pod creation with host network for the first time in the namespace Low (parent: Informational)
  • Kubernetes pod creation with host network for the first time by the identity Low (parent: Informational)