- CSRF stands for Cross Site Request Forgery and is when an attacker takes advantage of a logged-in user's authenticated state to execute malicious application requests and change the user's app in harmful ways.
- An attacker with access to a CSRF vulnerability can trick a user into changing application state against their will, or in a way they don't intend to (for example, routing money to a different bank account).
- A CSRF PoC is just the bare-bones markup necessary to recreate the form's HTTP request.
- If you can open a CSRF PoC in your browser and submit it successfully, that validates the vulnerability.
- Using BeautifulSoup to generate HTML lets you allow tedious string manipulation (for example, splitting and inserting nested tags).
- We used a CSRF POST-based attack in our E2E example.
- A malicious actor would use more hidden fields, and allow his...
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Hands-On Bug Hunting for Penetration Testers
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Hands-On Bug Hunting for Penetration Testers
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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)
Preface
Free Chapter
Joining the Hunt
Choosing Your Hunting Ground
Preparing for an Engagement
Unsanitized Data – An XSS Case Study
SQL, Code Injection, and Scanners
CSRF and Insecure Session Authentication
Detecting XML External Entities
Access Control and Security Through Obscurity
Framework and Application-Specific Vulnerabilities
Formatting Your Report
Other Tools
Other (Out of Scope) Vulnerabilities
Going Further
Assessment
Other Books You May Enjoy
Customer Reviews
