Book Image

Hands-On Bug Hunting for Penetration Testers

By : Joe Marshall, Himanshu Sharma
Book Image

Hands-On Bug Hunting for Penetration Testers

By: Joe Marshall, Himanshu Sharma

Overview of this book

Bug bounties have quickly become a critical part of the security economy. This book shows you how technical professionals with an interest in security can begin productively—and profitably—participating in bug bounty programs. You will learn about SQli, NoSQLi, XSS, XXE, and other forms of code injection. You’ll see how to create CSRF PoC HTML snippets, how to discover hidden content (and what to do with it once it’s found), and how to create the tools for automated pentesting work?ows. Then, you’ll format all of this information within the context of a bug report that will have the greatest chance of earning you cash. With detailed walkthroughs that cover discovering, testing, and reporting vulnerabilities, this book is ideal for aspiring security professionals. You should come away from this work with the skills you need to not only find the bugs you're looking for, but also the best bug bounty programs to participate in, and how to grow your skills moving forward in freelance security research.
Table of Contents (16 chapters)

Data Leakage – An End-to-End Example

Let's try out some of our new techniques on WebGoat, OWASP's deliberately-vulnerable Java application. After navigating to localhost:8081/WebGoat, go ahead and click on the link to register a new user and then log in.

After you've logged in, you should be on the main WebGoat welcome page:

Now we're going to click through to the Client side lesson:

Landing on the page, we can immediately see a couple of hidden fields of interest. We also get the gist of the lesson—we're a disgruntled employee that wants to get the personal info of our CEO, even though we (naturally) don't have access to it—and what it is that we're trying to subvert: a small, employee directory application.

Looking at the hidden fields, they seem to be associated with an employee ID that's connected to an employee...