Kubernetes Pod Created With HostIPCedit
This rule detects an attempt to create or modify a pod using the host IPC namespace. This gives access to data used by any pod that also use the hosts IPC namespace. If any process on the host or any processes in a pod uses the hosts inter-process communication mechanisms (shared memory, semaphore arrays, message queues, etc.), an attacker can read/write to those same mechanisms. They may look for files in /dev/shm or use ipcs to check for any IPC facilities being used.
Rule type: query
Rule indices:
- logs-kubernetes.*
Severity: medium
Risk score: 47
Runs every: 5m
Searches indices from: None (Date Math format, see also Additional look-back time)
Maximum alerts per execution: 100
References:
Tags:
- Elastic
- Kubernetes
- Continuous Monitoring
- Execution
- Privilege Escalation
Version: 201
Rule authors:
- Elastic
Rule license: Elastic License v2
Investigation guideedit
Rule queryedit
event.dataset : "kubernetes.audit_logs"
and kubernetes.audit.annotations.authorization_k8s_io/decision:"allow"
and kubernetes.audit.objectRef.resource:"pods"
and kubernetes.audit.verb:("create" or "update" or "patch")
and kubernetes.audit.requestObject.spec.hostIPC:true
and not kubernetes.audit.requestObject.spec.containers.image: ("docker.elastic.co/beats/elastic-agent:8.4.0")
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Privilege Escalation
- ID: TA0004
- Reference URL: https://attack.mitre.org/tactics/TA0004/
-
Technique:
- Name: Escape to Host
- ID: T1611
- Reference URL: https://attack.mitre.org/techniques/T1611/
-
Tactic:
- Name: Execution
- ID: TA0002
- Reference URL: https://attack.mitre.org/tactics/TA0002/
-
Technique:
- Name: Deploy Container
- ID: T1610
- Reference URL: https://attack.mitre.org/techniques/T1610/