ECS Task Definition Network Mode Not Recommended

• Query id: 01aec7c2-3e4d-4274-ae47-2b8fea22fd1f
• Query name: ECS Task Definition Network Mode Not Recommended
• Platform: Ansible
• Severity: High
• Category: Insecure Configurations
• URL: Github

Description

Network_Mode should be 'awsvpc' in ecs_task_definition. AWS VPCs provides the controls to facilitate a formal process for approving and testing all network connections and changes to the firewall and router configurations
Documentation

Code samples

Code samples with security vulnerabilities

Postitive test num. 1 - yaml file

---
- name: Create task definition
  community.aws.ecs_taskdefinition:
    family: nginx
    containers:
    - name: nginx
      essential: true
      image: "nginx"
      portMappings:
      - containerPort: 8080
        hostPort: 8080
      cpu: 512
      memory: 1024
    state: present
    network_mode: default

- name: Create task definition2
  community.aws.ecs_taskdefinition:
    family: nginx
    containers:
    - name: nginx
      essential: true
      image: "nginx"
      portMappings:
      - containerPort: 8080
        hostPort: 8080
    launch_type: FARGATE
    cpu: 512
    memory: 1024
    state: present
    network_mode: none

Code samples without security vulnerabilities

Negative test num. 1 - yaml file

- name: Create task definition
  community.aws.ecs_taskdefinition:
    family: nginx
    containers:
    - name: nginx
      essential: true
      image: nginx
      portMappings:
      - containerPort: 8080
        hostPort: 8080
    launch_type: FARGATE
    cpu: 512
    memory: 1024
    state: present
    network_mode: awsvpc