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# AWS Redshift cluster instance with public access setting enabled misconfiguration detected in code

## Rule Details

|                        |                                                       |
| ---------------------- | ----------------------------------------------------- |
| Cortex AppSec Rule ID  | APPSEC\_AWS\_87                                       |
| Category - Subcategory | Public Exposure - Database Endpoints                  |
| Provider               | AWS                                                   |
| Severity               | MEDIUM                                                |
| Framework              | CloudFormation, Serverless, Terraform, Terraform Plan |
| Mapped CSPM/KSPM Rule  | 363c26e8-3875-4b4c-a8e2-809f7fc8457f                  |

## Impact

Redshift clusters deployed within a VPC can be accessed from: the Internet, EC2 Instances outside the VPC via VPN, bastion hosts that you can launch in your public subnet, and using Amazon Redshift's Publicly Accessible option. To use public connectivity, create your Redshift clusters with the *Publicly Accessible* option set to *Yes*, your Redshift clusters within a VPC will be fully accessible outside your VPC. If you do not want your Redshift clusters accessible from the Internet or outside your VPC, disable the Redshift *Publicly Accessible* option. If your AWS account allows you to create EC2-Classic clusters, the default option for *Publicly Accessible* is *No*. Public access to a Redshift cluster can increase the opportunity for malicious activity such as SQL injections or Distributed Denial of Service (DDoS) attacks.

## How to Fix

*Resource:* AWS::Redshift::Cluster

* *Arguments:* Properties.PubliclyAccessible \[source,go]

***

Type: "AWS::Redshift::Cluster" Properties: ...

* PubliclyAccessible: true
* PubliclyAccessible: false

***


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