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

Common Vulnerabilities

Access controls can be divided into three broad categories: vertical, horizontal, and context-dependent.

Vertical access controls allow different types of users to access different parts of the application's functionality. In the simplest case, this typically involves a division between ordinary users and administrators. In more complex cases, vertical access controls may involve fine-grained user roles granting access to specific functions, with each user being allocated to a single role, or a combination of different roles.

Horizontal access controls allow users to access a certain subset of a wider range of resources of the same type. For example, a web mail application may allow you to read your e-mail but no one else's, an online bank may let you transfer money out of your account only, and a workflow application may allow you to update tasks assigned to you but only read tasks assigned to other people.

Context-dependent access controls ensure that...