Florian Roth
34 lines
2.0 KiB
YAML
34 lines
2.0 KiB
YAML
title: Azure Kubernetes Sensitive Role Access
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id: 818fee0c-e0ec-4e45-824e-83e4817b0887
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description: Identifies when ClusterRoles/Roles are being modified or deleted.
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author: Austin Songer @austinsonger
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status: experimental
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date: 2021/08/07
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references:
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- https://docs.microsoft.com/en-us/azure/role-based-access-control/resource-provider-operations#microsoftkubernetes
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- https://www.microsoft.com/security/blog/2021/03/23/secure-containerized-environments-with-updated-threat-matrix-for-kubernetes/
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- https://www.microsoft.com/security/blog/2020/04/02/attack-matrix-kubernetes/
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- https://medium.com/mitre-engenuity/att-ck-for-containers-now-available-4c2359654bf1
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- https://attack.mitre.org/matrices/enterprise/cloud/
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logsource:
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product: azure
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service: activitylogs
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detection:
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selection:
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properties.message:
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- MICROSOFT.KUBERNETES/CONNECTEDCLUSTERS/RBAC.AUTHORIZATION.K8S.IO/ROLES/WRITE
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- MICROSOFT.KUBERNETES/CONNECTEDCLUSTERS/RBAC.AUTHORIZATION.K8S.IO/ROLES/DELETE
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- MICROSOFT.KUBERNETES/CONNECTEDCLUSTERS/RBAC.AUTHORIZATION.K8S.IO/ROLES/BIND/ACTION
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- MICROSOFT.KUBERNETES/CONNECTEDCLUSTERS/RBAC.AUTHORIZATION.K8S.IO/ROLES/ESCALATE/ACTION
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- MICROSOFT.KUBERNETES/CONNECTEDCLUSTERS/RBAC.AUTHORIZATION.K8S.IO/CLUSTERROLES/WRITE
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- MICROSOFT.KUBERNETES/CONNECTEDCLUSTERS/RBAC.AUTHORIZATION.K8S.IO/CLUSTERROLES/DELETE
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- MICROSOFT.KUBERNETES/CONNECTEDCLUSTERS/RBAC.AUTHORIZATION.K8S.IO/CLUSTERROLES/BIND/ACTION
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- MICROSOFT.KUBERNETES/CONNECTEDCLUSTERS/RBAC.AUTHORIZATION.K8S.IO/CLUSTERROLES/ESCALATE/ACTION
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condition: selection
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level: medium
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tags:
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- attack.impact
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falsepositives:
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- ClusterRoles/Roles being modified and 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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- ClusterRoles/Roles modification from unfamiliar users should be investigated. If known behavior is causing false positives, it can be exempted from the rule.
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