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)

VLAN hopping

VLAN hopping is the type of attack in which the attacker is able to send traffic from one VLAN into another. We can do this with two methods: double tags and switch spoofing.

To create a double tag attack, the attacker sends a packet with two 802.1Q tags--the inner VLAN tag is the VLAN that we are planning to reach, and the outer layer is the current VLAN.

How to do it...

Here are the steps to simulate a simple VLAN hopping attack:

  1. Create a file and open in your editor.
  2. Import the modules and set the variables:
import time
from scapy.all import *
iface = "en0"
our_vlan = 1
target_vlan = 2
target_ip = ''  
  1. Craft the packet with two 802.1Q tags:
ether = Ether()...