Book Image

Kali Linux Web Penetration Testing Cookbook - Second Edition

By : Gilberto Najera-Gutierrez
Book Image

Kali Linux Web Penetration Testing Cookbook - Second Edition

By: Gilberto Najera-Gutierrez

Overview of this book

Web applications are a huge point of attack for malicious hackers and a critical area for security professionals and penetration testers to lock down and secure. Kali Linux is a Linux-based penetration testing platform that provides a broad array of testing tools, many of which can be used to execute web penetration testing. Kali Linux Web Penetration Testing Cookbook gives you the skills you need to cover every stage of a penetration test – from gathering information about the system and application, to identifying vulnerabilities through manual testing. You will also cover the use of vulnerability scanners and look at basic and advanced exploitation techniques that may lead to a full system compromise. You will start by setting up a testing laboratory, exploring the latest features of tools included in Kali Linux and performing a wide range of tasks with OWASP ZAP, Burp Suite and other web proxies and security testing tools. As you make your way through the book, you will learn how to use automated scanners to find security ?aws in web applications and understand how to bypass basic security controls. In the concluding chapters, you will look at what you have learned in the context of the Open Web Application Security Project (OWASP) and the top 10 web application vulnerabilities you are most likely to encounter, equipping you with the ability to combat them effectively. By the end of this book, you will have acquired the skills you need to identify, exploit, and prevent web application vulnerabilities.
Table of Contents (12 chapters)

Bypassing file upload restrictions

In previous chapters, we have seen how to avoid some restrictions in file uploads. In this recipe, we will face a more complete, although still insufficient, validation and chain another vulnerability in order to, first, upload a webshell into the server, and second, move it into a directory where we can execute it from.

How to do it...

For this recipe, we need Mutillidae II in our vulnerable VM to be at security level, use the Toggle Security option in the menu to set it, and use Burp Suite as proxy:

  1. In Mutillidae II's menu, go to Others | Unrestricted File Upload | File Upload.
  2. The first test will be to attempt uploading a PHP webshell. You can use the ones we used in previous chapters...