IAM group without users

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Metadata

Id: f509931b-bbb0-443c-bd9b-10e92ecf2193

Cloud Provider: AWS

Platform: Ansible

Severity: Medium

Category: Access Control

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Description

IAM groups should include at least one user to ensure group membership and any attached permissions are intentional, auditable, and not left orphaned.

This rule checks Ansible amazon.aws.iam_group and iam_group tasks and requires the users property to be defined and non-null (a list containing one or more usernames). Resources missing the users property or with users: null or an empty list are flagged. Either populate the list with the intended usernames or remove unused groups and associated policies.

Secure configuration example:

- name: Create developers IAM group with users
  amazon.aws.iam_group:
    name: developers
    users:
      - alice
      - bob
    state: present

Compliant Code Examples

- name: Group3
  iam_group:
    name: testgroup2
    managed_policy:
      - arn:aws:iam::aws:policy/AmazonSNSFullAccess
    users:
      - test_user1
      - test_user2
    state: present

Non-Compliant Code Examples

- name: Group2
  iam_group:
    name: testgroup2
    managed_policy:
      - arn:aws:iam::aws:policy/AmazonSNSFullAccess
    users:
    state: present

- name: Group1
  iam_group:
    name: testgroup1
    state: present