Book Image

The Web Application Hacker's Handbook

By : Dafydd Stuttard, Marcus Pinto
Book Image

The Web Application Hacker's Handbook

By: Dafydd Stuttard, Marcus Pinto

Overview of this book

Web applications are the front door to most organizations, exposing them to attacks that may disclose personal information, execute fraudulent transactions, or compromise ordinary users. This practical book has been completely updated and revised to discuss the latest step-by-step techniques for attacking and defending the range of ever-evolving web applications. Youíll explore the various new technologies employed in web applications that have appeared since the first edition and review the new attack techniques that have been developed, particularly in relation to the client side. The book starts with the current state of web application security and the trends that indicate how it is likely to evolve soon. Youíll examine the core security problem affecting web applications and the defence mechanisms that applications implement to address this problem, and youíll also explore the key technologies used in todayís web application. Next, youíll carry out tasks for breaking into web applications and for executing a comprehensive attack. As you progress, youíll learn to find vulnerabilities in an application's source code and review the tools that can help when you hack web applications. Youíll also study a detailed methodology for performing a comprehensive and deep attack against a specific target. By the end of this book, youíll be able to discover security flaws in web applications and how to deal with them.
Table of Contents (32 chapters)
Free Chapter
About the Authors
About the Technical Editor
MDSec: The Authors’ Company
End User License Agreement


Authentication functions are perhaps the most prominent target in a typical application's attack surface. By definition, they can be reached by unprivileged, anonymous users. If broken, they grant access to protected functionality and sensitive data. They lie at the core of the security mechanisms that an application employs to defend itself and are the front line of defense against unauthorized access.

Real-world authentication mechanisms contain a myriad of design and implementation flaws. An effective assault against them needs to proceed systematically, using a structured methodology to work through every possible avenue of attack. In many cases, open goals present themselves — bad passwords, ways to find out usernames, vulnerability to brute-force attacks. At the other end of the spectrum, defects may be very hard to uncover. They may require meticulous examination of a convoluted login process to establish the assumptions being made and to help you spot the subtle...