> 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-145.md).

# S3 buckets are not encrypted with KMS misconfiguration detected in code

## Rule Details

|                        |                           |
| ---------------------- | ------------------------- |
| Cortex AppSec Rule ID  | APPSEC\_AWS\_145          |
| Category - Subcategory | Storage - Encryption      |
| Provider               | AWS                       |
| Severity               | LOW                       |
| Framework              | Terraform, Terraform Plan |

## Impact

Encrypting your data and resources with KMS helps protect your data from unauthorized access or tampering. By encrypting your data, you can ensure that only authorized users can access and decrypt the data, and that the data is protected while in storage or in transit. Such action can help protect against external threats such as hackers or malware, as well as internal threats such as accidental or unauthorized access.

## How to Fix

*Resource:* aws\_s3\_bucket

* *Arguments:* apply\_server\_side\_encryption\_by\_default.kms\_master\_key\_id \[source,go]

***

resource "aws\_s3\_bucket" "bucket\_name" { bucket = "bucket\_good" }

* resource "aws\_s3\_bucket\_server\_side\_encryption\_configuration" "good\_sse\_1" {
* bucket = aws\_s3\_bucket.bucket\_name.bucket
*
* rule {
* apply\_server\_side\_encryption\_by\_default {
* kms\_master\_key\_id = aws\_kms\_key.mykey.arn
* sse\_algorithm = "aws:kms"
* }
* }
* }

***


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