> For the complete documentation index, see [llms.txt](https://cortex-docs.paloaltonetworks.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cortex-docs.paloaltonetworks.com/appsec-rules/iac-security/storage/appsec-aws-296.md).

# DMS endpoint is not using a Customer Managed Key (CMK) misconfiguration detected in code

## Rule Details

|                        |                           |
| ---------------------- | ------------------------- |
| Cortex AppSec Rule ID  | APPSEC\_AWS\_296          |
| Category - Subcategory | Storage - Encryption      |
| Provider               | AWS                       |
| Severity               | HIGH                      |
| Framework              | Terraform, Terraform Plan |

## Impact

This rule ensures that Database Migration Service (DMS) endpoints use a Customer Managed Key (CMK) for encryption. This is crucial because relying on a default encryption key provided by AWS introduces potential security risks. Customer Managed Keys offer a higher level of control over the cryptographic keys, including their rotation and deletion. Lack of such control can lead to unauthorized data accessibility and potential data breaches.

## How to Fix

*Resource:* aws\_dms\_endpoint

* *Arguments:* server\_side\_encryption\_kms\_key\_id

## To fix this issue, you must ensure that your AWS DMS (Data Migration Service) endpoint uses a Customer Managed Key (CMK) for encryption. \[source,go]

resource "aws\_dms\_endpoint" "pass" { certificate\_arn = "arn:aws:acm:us-east-1:123456789012:certificate/12345678-1234-1234-1234-123456789012" database\_name = "test" endpoint\_id = "test-dms-endpoint-tf" endpoint\_type = "source" engine\_name = "aurora" extra\_connection\_attributes = ""

* kms\_key\_arn = "arn:aws:kms:us-east-1:123456789012:key/12345678-1234-1234-1234-123456789012" password = "test" port = 3306 server\_name = "test" ssl\_mode = "none"

tags = { Name = "test" }

## username = "test" }


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