Book Image

Python Penetration Testing Cookbook

By : Rejah Rehim
Book Image

Python Penetration Testing Cookbook

By: Rejah Rehim

Overview of this book

Penetration testing is the use of tools and code to attack a system in order to assess its vulnerabilities to external threats. Python allows pen testers to create their own tools. Since Python is a highly valued pen-testing language, there are many native libraries and Python bindings available specifically for pen-testing tasks. Python Penetration Testing Cookbook begins by teaching you how to extract information from web pages. You will learn how to build an intrusion detection system using network sniffing techniques. Next, you will find out how to scan your networks to ensure performance and quality, and how to carry out wireless pen testing on your network to avoid cyber attacks. After that, we’ll discuss the different kinds of network attack. Next, you’ll get to grips with designing your own torrent detection program. We’ll take you through common vulnerability scenarios and then cover buffer overflow exploitation so you can detect insecure coding. Finally, you’ll master PE code injection methods to safeguard your network.
Table of Contents (15 chapters)

Layering packets

In Scapy, each packet is a collection of nested dictionaries, as Scapy uses Python dictionaries as the data structure for packets. Starting from the lowest layer, each layer will be a child dictionary of the parent layer. Also, each and every field inside the layer of a packet is a key value pair inside the dictionary for that layer. So, we can make changes in this field using the assignment operations.

How to do it...

To understand the layering in Scapy, we can go through the following steps:

  1. We can get the details of a packet and its layered structure using the show() method. We can use the interactive Terminal for inspecting and determining more about each packet's structure. Open up the Terminal...