Ensure the --client-cert-auth argument is set to True

Error: The --client-cert-auth argument is not set to True

Bridgecrew Policy ID: BC_K8S_90
Checkov Check ID: CKV_K8S_117
Severity: MEDIUM

The --client-cert-auth argument is not set to True

Description

Enable client authentication on etcd service. etcd is a highly-available key value store used by Kubernetes deployments for persistent storage of all of its REST API objects. These objects are sensitive in nature and should not be available to unauthenticated clients. You should enable the client authentication via valid certificates to secure the access to the etcd service.

Fix - Buildtime

Kubernetes

  • Kind: Pod
apiVersion: v1
kind: Pod
metadata:
  annotations:
    scheduler.alpha.kubernetes.io/critical-pod: ""
  creationTimestamp: null
  labels:
    component: etcd
    tier: control-plane
  name: etcd
  namespace: kube-system
spec:
  containers:
  - command:
+   - etcd
+   - --client-cert-auth=true
    image: k8s.gcr.io/etcd-amd64:3.2.18

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