CloudTrail log files not encrypted with KMS
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Id: f5587077-3f57-4370-9b4e-4eb5b1bac85b
Cloud Provider: AWS
Platform: Ansible
Severity: Low
Category: Encryption
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Description
CloudTrail log deliveries must be encrypted with an AWS KMS customer-managed key to protect audit logs at rest and ensure strict key access control, rotation, and usage auditing. In Ansible tasks using the amazon.aws.cloudtrail or cloudtrail module, the kms_key_id parameter must be defined and set to a KMS key ARN or alias (for example arn:aws:kms:region:account-id:key/KEY-ID or alias/my-key).
Tasks missing kms_key_id are flagged. Without a customer-managed key, you lose control over key access, rotation, and usage auditing.
Secure configuration example:
- name: Create CloudTrail with KMS encryption
amazon.aws.cloudtrail:
name: my-trail
s3_bucket_name: my-cloudtrail-bucket
kms_key_id: arn:aws:kms:us-east-1:123456789012:key/abcd1234-ef56-7890-abcd-EXAMPLE
Compliant Code Examples
- name: create multi-region trail with validation and tags v2
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: no sns topic name
amazon.aws.cloudtrail:
state: present
name: default
s3_bucket_name: mylogbucket
s3_key_prefix: cloudtrail
region: us-east-1
