Book Image

Kali Linux - An Ethical Hacker's Cookbook

By : Himanshu Sharma
Book Image

Kali Linux - An Ethical Hacker's Cookbook

By: Himanshu Sharma

Overview of this book

With the current rate of hacking, it is very important to pentest your environment in order to ensure advanced-level security. This book is packed with practical recipes that will quickly get you started with Kali Linux (version 2016.2) according to your needs, and move on to core functionalities. This book will start with the installation and configuration of Kali Linux so that you can perform your tests. You will learn how to plan attack strategies and perform web application exploitation using tools such as Burp, and Jexboss. You will also learn how to perform network exploitation using Metasploit, Sparta, and Wireshark. Next, you will perform wireless and password attacks using tools such as Patator, John the Ripper, and airoscript-ng. Lastly, you will learn how to create an optimum quality pentest report! By the end of this book, you will know how to conduct advanced penetration testing thanks to the book’s crisp and task-oriented recipes.
Table of Contents (20 chapters)
Title Page
Credits
Disclaimer
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface
6
Wireless Attacks – Getting Past Aircrack-ng

Exploiting PHP Object Injection


PHP Object Injection occurs when an insecure user input is passed through the PHP unserialize() function. When we pass a serialized string of an object of a class to an application, the application accepts it, and then PHP reconstructs the object and usually calls magic methods if they are included in the class. Some of the methods are __construct(), __destruct(), __sleep(), and __wakeup().

This leads to SQL injections, file inclusions, and even remote code execution. However, in order to successfully exploit this, we need to know the class name of the object.

How to do it...

The following steps demonstrate PHP Object Injection:

  1. Here, we have an app that is passing serialized data in the get parameter:
  1. Since we have the source code, we will see that the app is using __wakeup() function and the class name is PHPObjectInjection:
  1. Now we can write a code with the same class name to produce a serialized object containing our own command that we want to execute on the...