Etcd Client Certificate File Not Defined

  • Query id: 3f5ff8a7-5ad6-4d02-86f5-666307da1b20
  • Query name: Etcd Client Certificate File Not Defined
  • Platform: Kubernetes
  • Severity: Medium
  • Category: Secret Management
  • CWE: 287
  • URL: Github

Description

When using kube-apiserver commands, the '--etcd-cafile' flag should be defined
Documentation

Code samples

Code samples with security vulnerabilities

Positive test num. 1 - yaml file
apiVersion: v1
kind: Pod
metadata:
  name: command-demo
  labels:
    purpose: demonstrate-command
spec:
  containers:
    - name: command-demo-container
      image: gcr.io/google_containers/kube-apiserver-amd64:v1.6.0
      command: ["kube-apiserver"]
      args: []
  restartPolicy: OnFailure

Code samples without security vulnerabilities

Negative test num. 1 - yaml file
apiVersion: v1
kind: Pod
metadata:
  name: command-demo
  labels:
    purpose: demonstrate-command
spec:
  containers:
    - name: command-demo-container
      image: gcr.io/google_containers/kube-apiserver-amd64:v1.6.0
      command: ["kube-apiserver"]
      args: ["--etcd-cafile=/path/to/ca/file.pem"]
  restartPolicy: OnFailure
Negative test num. 2 - yaml file
apiVersion: v1
kind: Pod
metadata:
  name: command-demo
  labels:
    purpose: demonstrate-command
spec:
  containers:
    - name: command-demo-container
      image: gcr.io/google_containers/kube-apiserver-amd64:v1.6.0
      command: ["kube-apiserver","--etcd-cafile=/path/to/ca/file.pem"]
      args: []
  restartPolicy: OnFailure