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CloudTrail logs are not encrypted with customer managed key Affecting CloudTrail service in AWS

Severity

0.0
medium
0
10
    Severity Framework
    Snyk CCSS
    Rule category
    Keys and Secrets / Audit

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    Frameworks
    AWS-Well-Architected CIS-AWS CIS-Controls CSA-CCM GDPR ISO-27001 NIST-800-53 PCI-DSS SOC-2
  • Snyk ID SNYK-CC-00004
  • credit Snyk Research Team
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Description

By default, the log files delivered by CloudTrail to your bucket are encrypted with Amazon S3-managed encryption keys (SSE-S3). To get control over key rotation and obtain auditing visibility into key usage, use SSE-KMS to encrypt log files with customer managed KMS keys.

How to fix?

Set the aws_cloudtrail kms_key_id field to the KMS key ARN to use to encrypt the logs delivered by CloudTrail.

Example Configuration

resource "aws_cloudtrail" "example" {
  kms_key_id = "arn:aws:kms:example-key-id"
  # other required fields here
}

CloudFormation