Kubelet Streaming Connection Timeout Disabled

Query id: ed89b97d-04e9-4fd4-919f-ee5b27e555e9
Query name: Kubelet Streaming Connection Timeout Disabled
Platform: Kubernetes
Severity: Medium
Category: Networking and Firewall
URL: Github

Description¶

The flag --streaming-connection-idle-timeout should not be set to 0
Documentation

Code samples¶

Code samples with security vulnerabilities¶

Postitive test num. 1 - yaml file

apiVersion: v1
kind: Pod
metadata:
  name: command-demo
  labels:
    purpose: demonstrate-command
spec:
  containers:
    - name: command-demo-container
      image: joaodanielrufino/kubelet
      command: ["kubelet"]
      args: ["--streaming-connection-idle-timeout=0"]
  restartPolicy: OnFailure

Postitive test num. 2 - yaml file

apiVersion: kubelet.config.k8s.io/v1beta1
kind: KubeletConfiguration
address: "192.168.0.8"
port: 20250
serializeImagePulls: false
evictionHard:
    memory.available:  "200Mi"
streamingConnectionIdleTimeout: 0s

Postitive test num. 3 - json file

{
    "apiVersion": "kubelet.config.k8s.io/v1beta1",
    "evictionHard": {
        "memory.available": "200Mi"
    },
    "kind": "KubeletConfiguration",
    "serializeImagePulls": false,
    "address": "192.168.0.8",
    "port": 20250,
    "streamingConnectionIdleTimeout": "0s"
}

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: joaodanielrufino/kubelet
      command: ["kubelet"]
      args: [""]
  restartPolicy: OnFailure

Negative test num. 2 - yaml file

apiVersion: kubelet.config.k8s.io/v1beta1
kind: KubeletConfiguration
address: "192.168.0.8"
port: 20250
serializeImagePulls: false
evictionHard:
    memory.available:  "200Mi"

Negative test num. 3 - json file

{
    "address": "192.168.0.8",
    "apiVersion": "kubelet.config.k8s.io/v1beta1",
    "evictionHard": {
        "memory.available": "200Mi"
    },
    "kind": "KubeletConfiguration",
    "port": 20250,
    "serializeImagePulls": false
}