Book Image

Bug Bounty Hunting Essentials

By : Carlos A. Lozano, Shahmeer Amir
Book Image

Bug Bounty Hunting Essentials

By: Carlos A. Lozano, Shahmeer Amir

Overview of this book

Bug bounty programs are the deals offered by prominent companies where-in any white-hat hacker can find bugs in the applications and they will have a recognition for the same. The number of prominent organizations having this program has increased gradually leading to a lot of opportunity for Ethical Hackers. This book will initially start with introducing you to the concept of Bug Bounty hunting. Then we will dig deeper into concepts of vulnerabilities and analysis such as HTML injection, CRLF injection and so on. Towards the end of the book, we will get hands-on experience working with different tools used for bug hunting and various blogs and communities to be followed. This book will get you started with bug bounty hunting and its fundamentals.
Table of Contents (20 chapters)
Title Page
Copyright and Credits
About Packt
Contributors
Preface
Index

Chapter 5. Application Logic Vulnerabilities

Personally, I think that this is the most important chapter in this book for all bug bounty hunters, and this is the type of vulnerability that marks the difference between a normal application security assessment, and the bug bounty hunting approach.

The application logic vulnerabilities are errors, difficult-to-find ones—that are generated by the logic applied during the development. Therefore, we need a lot of understanding about the following:

  • How the application works
  • How the application is managing each piece of information that's entered by the user
  • How the application is interacting with other applications or services
  • How the developers applied the technology used to construct the application

All of the preceding elements must be examined when trying to find errors in the implementation.

But, if all the development teams use a maturity model methodology to develop, why do these kinds of vulnerabilities exist? How is it possible that these flaws...