Merge pull request #29025 from robscott/endpoints-rbac

Adding documentation about Endpoints write access in wake of CVE-2021-25740
2021-07-26 23:20:45 -07:00
parent cfce358765 d710925768
commit acc7252970
2 changed files with 44 additions and 3 deletions
@@ -0,0 +1,18 @@
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  annotations:
+    kubernetes.io/description: |-
+      Add endpoints write permissions to the edit and admin roles. This was
+      removed by default in 1.22 because of CVE-2021-25740. See
+      https://issue.k8s.io/103675. This can allow writers to direct LoadBalancer
+      or Ingress implementations to expose backend IPs that would not otherwise
+      be accessible, and can circumvent network policies or security controls
+      intended to prevent/isolate access to those backends.
+  labels:
+    rbac.authorization.k8s.io/aggregate-to-edit: "true"
+  name: custom:aggregate-to-edit:endpoints # you can change this if you wish
+rules:
+  - apiGroups: [""]
+    resources: ["endpoints"]
+    verbs: ["create", "delete", "deletecollection", "patch", "update"]