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# EventBridge Scheduler Schedule is not using a Customer Managed Key (CMK) misconfiguration detected i

## Rule Details

|                        |                           |
| ---------------------- | ------------------------- |
| Cortex AppSec Rule ID  | APPSEC\_AWS\_297          |
| Category - Subcategory | Storage - Encryption      |
| Provider               | AWS                       |
| Severity               | HIGH                      |
| Framework              | Terraform, Terraform Plan |

## Impact

This rule is checking to make sure that EventBridge Scheduler Schedule in AWS utilizes a Customer Managed Key (CMK) for encryption. This is crucial for maintaining secure data practices because CMKs offer increased control over key rotation, allowing a system administrator to manually rotate, disable, or re-enable a CMK. Without the use of a CMK, encryption keys will be solely managed by AWS, leading to less flexibility and potential security risks.

## How to Fix

*Resource:* aws\_scheduler\_schedule

* *Arguments:* kms\_key\_arn

## To fix this issue, you should use a Customer Managed Key (CMK) for the EventBridge Scheduler Schedule. \[source,go]

resource "aws\_scheduler\_schedule" "pass" { name = "my-schedule" group\_name = "default"

flexible\_time\_window { mode = "OFF" }

schedule\_expression = "rate(1 hour)"

* kms\_key\_arn = "arn:aws:kms:eu-west-2:680235478471:key/a61e2553-18fe-40b8-a959-bf775459ed46"

## target { arn = aws\_sqs\_queue.example.arn role\_arn = aws\_iam\_role.example.arn } }


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