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
1
Cover
2
Title
3
Copyright
4
About the Authors
5
About the Technical Editor
6
MDSec: The Authors’ Company
7
Credits
8
Acknowledgments
31
Index
32
End User License Agreement

Summary

We have examined a wide range of attacks targeting back-end application components and the practical steps you can take to identify and exploit each one. Many real-world vulnerabilities can be discovered within the first few seconds of interacting with an application. For example, you could enter some unexpected syntax into a search box. In other cases, these vulnerabilities may be highly subtle, manifesting themselves in scarcely detectable differences in the application's behavior, or reachable only through a multistage process of submitting and manipulating crafted input.

To be confident that you have uncovered the back-end injection flaws that exist within an application, you need to be both thorough and patient. Practically every type of vulnerability can manifest itself in the processing of practically any item of user-supplied data, including the names and values of query string parameters, POST data and cookies, and other HTTP headers. In many cases, a defect emerges...