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Web Penetration Testing with Kali Linux. - Third Edition

You're reading from Web Penetration Testing with Kali Linux. - Third Edition

Product type Book

Published in Feb 2018

Publisher

ISBN-13 9781788623377

Pages 426 pages

Edition 3rd Edition

Languages

Concepts

Web Penetration Testing

Authors (3):

Daniel W. Dieterle

Gilberto Najera-Gutierrez

Juned Ahmed Ansari

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Table of Contents (19) Chapters

Title Page

Copyright and Credits

Dedication

Packt Upsell

Contributors

Preface

1. Introduction to Penetration Testing and Web Applications

2. Setting Up Your Lab with Kali Linux

3. Reconnaissance and Profiling the Web Server

4. Authentication and Session Management Flaws

5. Detecting and Exploiting Injection-Based Flaws

6. Finding and Exploiting Cross-Site Scripting (XSS) Vulnerabilities

7. Cross-Site Request Forgery, Identification, and Exploitation

8. Attacking Flaws in Cryptographic Implementations

9. AJAX, HTML5, and Client-Side Attacks

10. Other Common Security Flaws in Web Applications

11. Using Automated Scanners on Web Applications

1. Other Books You May Enjoy

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Index

Preventing and mitigating Cross-Site Scripting

As with any other injection vulnerability, a proper input validation is the first line of defense in order to prevent XSS. Also, if possible, avoid using user inputs as output information. Sanitization and encoding are key aspects of preventing XSS.

Sanitization means removing inadmissible characters from the string. This is useful when no special characters should exist in input strings.

Encoding converts special characters to their HTML code representation. For example, & to & or < to <. Some types of applications may need to allow the use of special characters in input strings. For those applications, sanitization is not an option. Thus, they should encode the output data before inserting it into the page and storing it in the database.

The validation, sanitization, and encoding processes must be done on both the client side and the server side in order to prevent all types of XSS and other code injections.

Note

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Authors (3)

Daniel W. Dieterle

Daniel W. Dieterle, with over 20 years in IT, has evolved from a system and network support role to a dedicated Computer Security Researcher and Author. His expertise, honed in diverse environments like corporate data centers and Ivy League schools, is reflected in his Kali Linux-based books, widely used globally for security training in universities, government, and private sectors. He has contributed to numerous technical books, articles, and security training classes, and is passionate about mentoring newcomers in the field.

See other products by Daniel W. Dieterle

Gilberto Najera-Gutierrez

Gilberto Najera-Gutierrez is an experienced penetration tester currently working for one of the top security testing service providers in Australia. He obtained leading security and penetration testing certifications, namely Offensive Security Certified Professional (OSCP), EC-Council Certified Security Administrator (ECSA), and GIAC Exploit Researcher and Advanced Penetration Tester (GXPN).

See other products by Gilberto Najera-Gutierrez

Juned Ahmed Ansari

Juned Ahmed Ansari (@junedlive) is a cyber security researcher based out of Mumbai. He currently leads the penetration testing and offensive security team in a prodigious MNC. Juned has worked as a consultant for large private sector enterprises, guiding them on their cyber security program. He has also worked with start-ups, helping them make their final product secure.

See other products by Juned Ahmed Ansari

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