CloudTrail multi-region is disabled

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Metadata

Id: ansible-aws-cloudtrail-multi-region-disabled

Provider: AWS

Platform: Ansible

Severity: Low

Category: Observability

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Description

CloudTrail must be configured as a multi-region trail so that API activity across all AWS regions is captured. This ensures comprehensive auditing and timely incident response. Without multi-region logging, cross-region activity can be missed, hindering detection, forensics, and compliance.

For Ansible CloudTrail resources (modules amazon.aws.cloudtrail or cloudtrail), the is_multi_region_trail property must be defined and set to true. Resources that omit is_multi_region_trail or have is_multi_region_trail: false are flagged.

Secure example (Ansible):

- name: Create multi-region CloudTrail
  amazon.aws.cloudtrail:
    name: my-trail
    s3_bucket_name: my-trail-bucket
    is_multi_region_trail: true
    state: present

Compliant Code Examples

- name: example1
  amazon.aws.cloudtrail:
    state: present
    name: default
    s3_bucket_name: mylogbucket
    region: us-east-1
    is_multi_region_trail: true
    enable_log_file_validation: true
    cloudwatch_logs_role_arn: arn:aws:iam::123456789012:role/CloudTrail_CloudWatchLogs_Role
    cloudwatch_logs_log_group_arn: arn:aws:logs:us-east-1:123456789012:log-group:CloudTrail/DefaultLogGroup:*
    kms_key_id: alias/MyAliasName
    tags:
      environment: dev
      Name: default

Non-Compliant Code Examples

- name: example1
  amazon.aws.cloudtrail:
    state: present
    name: default
    s3_bucket_name: mylogbucket
    region: us-east-1
    is_multi_region_trail: false
    enable_log_file_validation: true
    cloudwatch_logs_role_arn: "arn:aws:iam::123456789012:role/CloudTrail_CloudWatchLogs_Role"
    cloudwatch_logs_log_group_arn: "arn:aws:logs:us-east-1:123456789012:log-group:CloudTrail/DefaultLogGroup:*"
    kms_key_id: "alias/MyAliasName"
    tags:
      environment: dev
      Name: default