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Practical Web Penetration Testing

You're reading from Practical Web Penetration Testing

Product type Book

Published in Jun 2018

Publisher Packt

ISBN-13 9781788624039

Pages 294 pages

Edition 1st Edition

Languages

Concepts

Author (1):

Gus Khawaja

Table of Contents (18) Chapters

Preface

1. Building a Vulnerable Web Application Lab

2. Kali Linux Installation

3. Delving Deep into the Usage of Kali Linux

4. All About Using Burp Suite

5. Understanding Web Application Vulnerabilities

6. Application Security Pre-Engagement

7. Application Threat Modeling

8. Source Code Review

9. Network Penetration Testing

10. Web Intrusion Tests

11. Pentest Automation Using Python

12. Nmap Cheat Sheet

13. Metasploit Cheat Sheet

Metasploit framework

14. Netcat Cheat Sheet

15. Networking Reference Section

16. Python Quick Reference

Quick Python language overview

17. Other Books You May Enjoy

Leave a review - let other readers know what you think

Command Injection

Command Injection is very simple, you just exploit it by executing commands on a web page because it allows you to do so. In other words, if you ever see a page that offers the functionality of executing a command in the backend, then it's probably vulnerable to this attack. Command Injection is very popular in Capture the Flag (CTF) because it allows you to completely own a remote machine (the machine that hosts the web application).

As usual, let's see a practical example using Mutillidae. Open the left menu OWASP 2017 | Injection | Command Injection | DNS Lookup:

This page executes the DNS Lookup command in the backend. In this example, I entered the IP address 10.0.0.1 and clicked on the Lookup DNS button.

Do you think we can override the normal behavior of this page and execute any command of our liking? (Or maybe execute a backdoor such as netcat...

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Authors (1)

Gus Khawaja

Gus Khawaja holds a bachelor's degree in computer science. He specializes in IT security and ethical hacking. He is an author and shares his passion with millions of viewers around the world using his online courses. He also works as a cybersecurity consultant in Montreal, Canada. After many years of experience in programming, he turned his attention to cybersecurity and the importance that security brings to this minefield. His passion for the ethical hacking mixed with his background in programming and IT makes him a wise swiss-knife professional in the computer science domain.

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