IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
GCP Kubernetes Rolebindings Created or Patchededit
Identifies the creation or patching of potentially malicious role bindings. Users can use role bindings and cluster role bindings to assign roles to Kubernetes subjects (users, groups, or service accounts).
Rule type: query
Rule indices:
- filebeat-*
- logs-gcp*
Severity: medium
Risk score: 47
Runs every: 5 minutes
Searches indices from: now-20m (Date Math format, see also Additional look-back time
)
Maximum alerts per execution: 100
References:
Tags:
- Elastic
- Cloud
- GCP
- Continuous Monitoring
- SecOps
- Configuration Audit
Version: 4 (version history)
Added (Elastic Stack release): 7.16.0
Last modified (Elastic Stack release): 8.4.0
Rule authors: Elastic, Austin Songer
Rule license: Elastic License v2
Investigation guideedit
Rule queryedit
event.dataset:(googlecloud.audit or gcp.audit) and event.action:(io.k8s.authorization.rbac.v*.clusterrolebindings.create or io.k8s.authorization.rbac.v*.rolebindings.create or io.k8s.authorization.rbac.v*.clusterrolebindings.patch or io.k8s.authorization.rbac.v*.rolebindings.patch) and event.outcome:success and not gcp.audit.authentication_info.principal_email:"system:addon-manager"
Threat mappingedit
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Privilege Escalation
- ID: TA0004
- Reference URL: https://attack.mitre.org/tactics/TA0004/
Rule version historyedit
- Version 4 (8.4.0 release)
-
-
Updated query, changed from:
event.dataset:(googlecloud.audit or gcp.audit) and event.action:(io.k8s.authorization.rbac.v*.clusterrolebindings.create or io.k8s.authorization.rbac.v*.rolebindings.create or io.k8s.authorization.rbac.v*.clusterrolebindings.patch or io.k8s.authorization.rbac.v*.rolebindings.patch) and event.outcome:success and not gcp.audit.authentication_info.principal_email:"system:addon-manager"
-
- Version 2 (8.1.0 release)
-
-
Updated query, changed from:
event.dataset:(googlecloud.audit or gcp.audit) and event.action:(io.k8s.authorization.rbac.v*.clusterrolebindings.create or io.k8s.authorization.rbac.v*.rolebindings.create or io.k8s.authorization.rbac.v*.clusterrolebindings.patch or io.k8s.authorization.rbac.v*.rolebindings.patch) and event.outcome:success
-