SQS queue should be encrypted with a CMK.
Default Severity: high
Explanation
Queues should be encrypted with customer managed KMS keys and not default AWS managed keys, in order to allow granular control over access to specific queues.
Possible Impact
The SQS queue messages could be read if compromised. Key management is very limited when using default keys.
Suggested Resolution
Encrypt SQS Queue with a customer-managed key
Insecure Example
The following example will fail the aws-sqs-queue-encryption-use-cmk check.
resource "aws_sqs_queue" "bad_example" {
kms_master_key_id = "alias/aws/sqs"
}
Secure Example
The following example will pass the aws-sqs-queue-encryption-use-cmk check.
resource "aws_sqs_queue" "good_example" {
kms_master_key_id = "/blah"
}