cis-aws-database-2-1

name	cis-aws-database-2.1
description	Ensure the Use of Security Groups
category	cis-database
version	2.0.0
author	cyberstrike-official
tags	["cis","aws","database","aurora","security-groups","vpc","network","firewall"]
cis_id	2.1
cis_benchmark	CIS AWS Database Services Benchmark v2.0.0
tech_stack	["aws"]
cwe_ids	[]
chains_with	["cis-aws-database-2.9"]
prerequisites	[]
severity_boost	{}

2.1 Ensure the Use of Security Groups (Manual)

Description

Security groups act as a firewall for associated Amazon RDS DB instances, controlling both inbound and outbound traffic.

Rationale

Creating your severity group either inbound or outbound rules. Inbound rules allow an individual to create a rule that permits the traffic to go to a specific port depending on which source it's coming from. Outbound rules enable your instances to connect with one another allow them to connect to the internet. If needed, you can limit the outgoing traffic.

Impact

Without properly configured security groups, the Aurora database instance may be accessible from unintended sources or may not be able to communicate with required services.

Audit Procedure

Using AWS Console

1. Open the Amazon Console
2. Go to Aurora and RDS (https://console.aws.amazon.com/rds/)
3. Click on Databases
4. For each database instance click the name of the instance and check that there is at least one VPC security group under Connectivity & security -> Security -> VPC security groups

Expected Result

Each Aurora DB instance should have at least one VPC security group associated with it, with appropriate inbound and outbound rules configured.

Remediation

Using AWS Console

Here is a step-by-step guide on how to create and use Security Groups for an Amazon Aurora instance:

1. Sign in to AWS Management Console

   • If you do not already have an AWS account, you'll need to create one at https://aws.amazon.com.

2. Navigate to Amazon EC2 Dashboard

   • Once you have logged in to the AWS Management Console, navigate to the EC2 service. You can find this under the Compute category.

3. Create a New Security Group

   • In the EC2 Dashboard, find the Network & Security section on the left-side navigation pane, then click Security Groups.
   • Click on the Create Security Group button.

4. Configure the New Security Group

   • In the Create Security Group panel, give your new security group a name and a description.
   • Select the VPC in which your Amazon Aurora instance will be deployed.
   • Then click .