> 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/public-exposure/appsec2-aws-38.md).

# Domain Name System Security Extensions (DNSSEC) signing is not enabled for Amazon Route 53 public ho

## Domain Name System Security Extensions (DNSSEC) signing is not enabled for Amazon Route 53 public hosted zones misconfiguration detected in code

### Rule Details

|                        |                                            |
| ---------------------- | ------------------------------------------ |
| Cortex AppSec Rule ID  | APPSEC2\_AWS\_38                           |
| Category - Subcategory | Public Exposure - Encryption And Protocols |
| Provider               | AWS                                        |
| Severity               | HIGH                                       |
| Framework              | Terraform, Terraform Plan                  |

### Impact

This rule detects when Domain Name System Security Extensions (DNSSEC) signing is not enabled for Amazon Route 53 public hosted zones.

### How to Fix

*Resource:* aws\_route53\_zone, aws\_route53\_hosted\_zone\_dnssec, aws\_route53\_key\_signing\_key, aws\_route53\_zone\_association

By including both the aws\_route53\_hosted\_zone\_dnssec and aws\_route53\_key\_signing\_key resources and not associating the zone with a VPC, this configuration will securely sign the hosted zone.

## Define a Route 53 public hosted zone

### \[source,go]

resource "aws\_route53\_zone" "example" { name = "example.com" }

## Enable DNSSEC for the hosted zone

resource "aws\_route53\_hosted\_zone\_dnssec" "example" { hosted\_zone\_id = aws\_route53\_zone.example.zone\_id }

## Optionally, define a key signing key (KSK) for DNSSEC

### resource "aws\_route53\_key\_signing\_key" "example" { hosted\_zone\_id = aws\_route53\_zone.example.zone\_id name = "example-key" key\_management\_service\_arn = "arn:aws:kms:us-west-2:123456789012:key/your-kms-key-id" # Replace with your KMS key ARN status = "ACTIVE" }


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