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

Capturing Data Cross-Domain

The same-origin policy is designed to prevent code running on one domain from accessing content delivered from a different domain. This is why cross-site request forgery attacks are often described as “one-way” attacks. Although one domain may cause requests to a different domain, it may not easily read the responses from those requests to steal the user's data from a different domain.

In fact, various techniques can be used in some situations to capture all or part of a response from a different domain. These attacks typically exploit some aspect of the target application's functionality together with some feature of popular browsers to allow cross-domain data capture in a way that the same-origin policy is intended to prevent.

Capturing Data by Injecting HTML

Many applications contain functionality that allows an attacker to inject some limited HTML into a response that is received by a different user in a way that falls short of...