Book Image

Python: Penetration Testing for Developers

By : Christopher Duffy, Mohit , Cameron Buchanan, Andrew Mabbitt, Terry Ip, Dave Mound, Benjamin May
Book Image

Python: Penetration Testing for Developers

By: Christopher Duffy, Mohit , Cameron Buchanan, Andrew Mabbitt, Terry Ip, Dave Mound, Benjamin May

Overview of this book

Cybercriminals are always one step ahead, when it comes to tools and techniques. This means you need to use the same tools and adopt the same mindset to properly secure your software. This course shows you how to do just that, demonstrating how effective Python can be for powerful pentesting that keeps your software safe. Comprising of three key modules, follow each one to push your Python and security skills to the next level. In the first module, we’ll show you how to get to grips with the fundamentals. This means you’ll quickly find out how to tackle some of the common challenges facing pentesters using custom Python tools designed specifically for your needs. You’ll also learn what tools to use and when, giving you complete confidence when deploying your pentester tools to combat any potential threat. In the next module you’ll begin hacking into the application layer. Covering everything from parameter tampering, DDoS, XXS and SQL injection, it will build on the knowledge and skills you learned in the first module to make you an even more fluent security expert. Finally in the third module, you’ll find more than 60 Python pentesting recipes. We think this will soon become your trusted resource for any pentesting situation. This Learning Path combines some of the best that Packt has to offer in one complete, curated package. It includes content from the following Packt products: ? Learning Penetration Testing with Python by Christopher Duffy ? Python Penetration Testing Essentials by Mohit ? Python Web Penetration Testing Cookbook by Cameron Buchanan,Terry Ip, Andrew Mabbitt, Benjamin May and Dave Mound
Table of Contents (32 chapters)
Python: Penetration Testing for Developers
Python: Penetration Testing for Developers
Credits
Preface
Bibliography
Index

Writing a basic buffer overflow exploit


We are going to exploit version 1 of the Free MP3 CD Ripper software program. To do this, we need to download and install the product from this location http://free-mp3-cd-ripper.en.softonic.com/. To take advantage of this program's weakness, we are going to use the following Python script, which will generate a malicious .wav file that can be uploaded into the program. The data will be interpreted and will create an overflow condition that we can observe and attempt to tailor and build an exploit. As mentioned before, we are going to load up a number of different characters into this file so that we can guestimate the relative location of the stored EIP value.

#!/usr/bin/env python
import struct
filename="exploit.wav"
fill ="A"*4000
fill +="B"*1000
fill +="C"*1000
exploit = fill
writeFile = open (filename, "w")
writeFile.write(exploit)
writeFile.close()

This script will fill the malicious wave file with four thousand As, one thousand Bs, and one thousand...