ScoutSuite for AWS and Google Cloud

Introduction

Scout Suite is an open source multi-cloud security-auditing tool, which enables security posture assessment of cloud environments. Using the APIs exposed by cloud providers, Scout Suite gathers configuration data for manual inspection and highlights risk areas. Rather than going through dozens of pages on the web consoles, Scout Suite presents a clear view of the attack surface automatically.

Scout Suite was designed by security consultants/auditors. It is meant to provide a point-in-time security-oriented view of the cloud account it was run in. Once the data has been gathered, all usage may be performed offline.

What are we going to cover?

This chapter wil cover the ScouteSuite tool and the step by step guide on how we can run our own assessments on the AWS and Google Cloud

Requirements

IAM user: The following AWS Managed Policies can be attached to the principal used to run Scout in order to grant the necessary permissions:

• ReadOnlyAccess - Provides read-only access to AWS services and resources.

• SecurityAudit - The security audit template grants access to read security configuration metadata. It is useful for software that audits the configuration of an AWS account.

Using AWS CLI we will create a user in our AWS environment

aws iam create-user --user-name security-audit-user
aws iam attach-user-policy --user-name security-audit-user --policy-arn arn:aws:iam::aws:policy/ReadOnlyAccess
aws iam attach-user-policy --user-name security-audit-user --policy-arn arn:aws:iam::aws:policy/SecurityAudit
aws iam create-access-key --user-name security-audit-user

The above commands will create a user named security-audit-user and will attach ReadOnlyAccess and SecurityAudit policy to the user. The credentials generated should be added to aws cli.

Steps to audit

We will use our student machine to run the tool. And the target environment wil be our lab setup

1. We will install the scoutsuite using git, follow the below commands

git clone https://github.com/nccgroup/ScoutSuite
cd ScoutSuite
python3 -m venv env
source venv/bin/activate
pip install -r requirements.txt
python scout.py --help

1. Now you can run the ScoutSuite on the AWS in using the below command

python scout.py aws --profile security-audit

1. Once the audit is completed, the results will be stored in the scoutsuite-report folder as an html file.

Additional reference

ScoutSuite