Book Image

AWS Penetration Testing

By : Jonathan Helmus
Book Image

AWS Penetration Testing

By: Jonathan Helmus

Overview of this book

Cloud security has always been treated as the highest priority by AWS while designing a robust cloud infrastructure. AWS has now extended its support to allow users and security experts to perform penetration tests on its environment. This has not only revealed a number of loopholes and brought vulnerable points in their existing system to the fore, but has also opened up opportunities for organizations to build a secure cloud environment. This book teaches you how to perform penetration tests in a controlled AWS environment. You'll begin by performing security assessments of major AWS resources such as Amazon EC2 instances, Amazon S3, Amazon API Gateway, and AWS Lambda. Throughout the course of this book, you'll also learn about specific tests such as exploiting applications, testing permissions flaws, and discovering weak policies. Moving on, you'll discover how to establish private-cloud access through backdoor Lambda functions. As you advance, you'll explore the no-go areas where users can’t make changes due to vendor restrictions and find out how you can avoid being flagged to AWS in these cases. Finally, this book will take you through tips and tricks for securing your cloud environment in a professional way. By the end of this penetration testing book, you'll have become well-versed in a variety of ethical hacking techniques for securing your AWS environment against modern cyber threats.
Table of Contents (17 chapters)
1
Section 1: Setting Up AWS and Pentesting Environments
4
Section 2: Pentesting the Cloud – Exploiting AWS
12
Section 3: Lessons Learned – Report Writing, Staying within Scope, and Continued Learning

Exploring AWS Metasploit modules

Up until now, we have been using Metasploit to target hosts that fall within the scope of a pentest. Now, let's start to look at some of the AWS modules that we can use to enumerate and possibly attack AWS. For our purposes, let's say we were able to get credentials from the client. This will be part of a functional test. We want to see what we can leverage using the credentials.

To get started, let's spin up the vulnerable vsftpd instance that we attacked earlier and the Kali instance in the Pentest Playground VPC.

Now, we are going to do something a little different. This is a combination of a functional test and a black-box test. We will have stolen credentials but have no clue about the environment – so, we need to see whether we can find anything good!

Stealing user credentials

The first exercise we are going to go through is going to involve stealing credentials that belong to other AWS user accounts. These are...