Book Image

Mastering Modern Web Penetration Testing

By : Prakhar Prasad, Rafay Baloch
Book Image

Mastering Modern Web Penetration Testing

By: Prakhar Prasad, Rafay Baloch

Overview of this book

Web penetration testing is a growing, fast-moving, and absolutely critical field in information security. This book executes modern web application attacks and utilises cutting-edge hacking techniques with an enhanced knowledge of web application security. We will cover web hacking techniques so you can explore the attack vectors during penetration tests. The book encompasses the latest technologies such as OAuth 2.0, Web API testing methodologies and XML vectors used by hackers. Some lesser discussed attack vectors such as RPO (relative path overwrite), DOM clobbering, PHP Object Injection and etc. has been covered in this book. We'll explain various old school techniques in depth such as XSS, CSRF, SQL Injection through the ever-dependable SQLMap and reconnaissance. Websites nowadays provide APIs to allow integration with third party applications, thereby exposing a lot of attack surface, we cover testing of these APIs using real-life examples. This pragmatic guide will be a great benefit and will help you prepare fully secure applications.
Table of Contents (18 chapters)
Mastering Modern Web Penetration Testing
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface
Index

Generating Web backdoor payload with Metasploit


Metasploit provides different kinds of payloads that can be used to get extended post exploitation functionality through a file-based backdoor. For this section I'll assume that the reader has discovered a vulnerability on a server that allows file uploads without any kind of whitelisting. Assuming a LAMP server is on 162.243.85.82 and Metasploit is running on a computer with a NAT'ed internal IP of 192.168.4.211.

First of all, we'll generate a PHP Meterpreter bind payload, which will drop us with a basic PHP Meterpreter shell. The tool of the trade is msfvenom. Msfvenom is the de-facto tool in the Metasploit framework to create and encode various payloads. Msfvenom surpasses the older tools for generating and encoding payloads, namely msfpayload and msfencode. Let us now use the msfvenom command to see everything in action.

A list of payloads that are available under Msfvenom can be viewed by the following command:

msfvenom -l payloads

The above...