Ingress controller exposes workload

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Metadata

Id: 69bbc5e3-0818-4150-89cc-1e989b48f23b

Cloud Provider: k8s

Framework: Kubernetes

Severity: Medium

Category: Insecure Configurations

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Description

Ingress controllers should not expose workloads to avoid vulnerabilities and DoS attacks.

Compliant Code Examples

apiVersion: v1
kind: Service
metadata:
  name: app
  labels:
    app: app
spec:
  type: ClusterIP
  ports:
  - port: 3000
    targetPort: 3000
  selector:
    app: app


---

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: app-ingress
  annotations:
    kubernetes.io/ingress.class: "nginx"
  labels:
    app: app
spec:
  rules:
  - host: app.acme.org
    http:
      paths:
      - backend:
          serviceName: app2
          servicePort: 3000

Non-Compliant Code Examples

apiVersion: v1
kind: Service
metadata:
  name: app
  labels:
    app: app
spec:
  type: ClusterIP
  ports:
  - port: 3000
    targetPort: 3000
  selector:
    app: app


---

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: app-ingress
  annotations:
    kubernetes.io/ingress.class: "nginx"
  labels:
    app: app
spec:
  rules:
  - host: app.acme.org
    http:
      paths:
      - backend:
          serviceName: app
          servicePort: 3000