frack113
34 lines
1.8 KiB
YAML
34 lines
1.8 KiB
YAML
title: Google Cloud Kubernetes RoleBinding
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id: 0322d9f2-289a-47c2-b5e1-b63c90901a3e
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description: Detects the creation or patching of potential malicious RoleBinding. This includes RoleBindings and ClusterRoleBinding.
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author: Austin Songer @austinsonger
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status: experimental
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date: 2021/08/09
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references:
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- https://github.com/elastic/detection-rules/pull/1267
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- https://kubernetes.io/docs/reference/kubernetes-api/authorization-resources/cluster-role-v1/#ClusterRole
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- https://cloud.google.com/kubernetes-engine/docs/how-to/role-based-access-control
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- https://kubernetes.io/docs/reference/access-authn-authz/rbac/
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- https://cloud.google.com/kubernetes-engine/docs/how-to/audit-logging
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logsource:
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product: gcp
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service: gcp.audit
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detection:
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selection:
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gcp.audit.method_name:
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- io.k8s.authorization.rbac.v*.clusterrolebindings.create
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- io.k8s.authorization.rbac.v*.rolebindings.create
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- io.k8s.authorization.rbac.v*.clusterrolebindings.patch
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- io.k8s.authorization.rbac.v*.rolebindings.patch
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- io.k8s.authorization.rbac.v*.clusterrolebindings.update
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- io.k8s.authorization.rbac.v*.rolebindings.update
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- io.k8s.authorization.rbac.v*.clusterrolebindings.delete
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- io.k8s.authorization.rbac.v*.rolebindings.delete
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condition: selection
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level: medium
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tags:
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- attack.credential_access
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falsepositives:
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- RoleBindings and ClusterRoleBinding being modified or deleted may be performed by a system administrator. Verify whether the user identity, user agent, and/or hostname should be making changes in your environment.
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- RoleBindings and ClusterRoleBinding modified or deleted from unfamiliar users should be investigated. If known behavior is causing false positives, it can be exempted from the rule.
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