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

Vulnerable Server Configuration

Even the simplest of web servers comes with a wealth of configuration options that control its behavior. Historically, many servers have shipped with insecure default options, which present opportunities for attack unless they are explicitly hardened.

Default Credentials

Many web servers contain administrative interfaces that may be publicly accessible. These may be located at a specific location within the web root or may run on a different port, such as 8080 or 8443. Frequently, administrative interfaces have default credentials that are well known and are not required to be changed on installation.

Table 18.1 shows examples of default credentials on some of the most commonly encountered administrative interfaces.

Table 18.1 Default Credentials on Some Common Administrative Interfaces

Username Password
Apache Tomcat admin (none)
tomcat tomcat
root root
Sun JavaServer admin admin
Netscape Enterprise Server admin admin
Compaq Insight Manager...