Book Image

BackTrack 5 Wireless Penetration Testing Beginner's Guide

By : Vivek Ramachandran
Book Image

BackTrack 5 Wireless Penetration Testing Beginner's Guide

By: Vivek Ramachandran

Overview of this book

Wireless has become ubiquitous in today’s world. The mobility and flexibility provided by it makes our lives more comfortable and productive. But this comes at a cost – Wireless technologies are inherently insecure and can be easily broken. BackTrack is a penetration testing and security auditing distribution that comes with a myriad of wireless networking tools used to simulate network attacks and detect security loopholes. Backtrack 5 Wireless Penetration Testing Beginner’s Guide will take you through the journey of becoming a Wireless hacker. You will learn various wireless testing methodologies taught using live examples, which you will implement throughout this book. The engaging practical sessions very gradually grow in complexity giving you enough time to ramp up before you get to advanced wireless attacks.This book will take you through the basic concepts in Wireless and creating a lab environment for your experiments to the business of different lab sessions in wireless security basics, slowly turn on the heat and move to more complicated scenarios, and finally end your journey by conducting bleeding edge wireless attacks in your lab.There are many interesting and new things that you will learn in this book – War Driving, WLAN packet sniffing, Network Scanning, Circumventing hidden SSIDs and MAC filters, bypassing Shared Authentication, Cracking WEP and WPA/WPA2 encryption, Access Point MAC spoofing, Rogue Devices, Evil Twins, Denial of Service attacks, Viral SSIDs, Honeypot and Hotspot attacks, Caffe Latte WEP Attack, Man-in-the-Middle attacks, Evading Wireless Intrusion Prevention systems and a bunch of other cutting edge wireless attacks.If you were ever curious about what wireless security and hacking was all about, then this book will get you started by providing you with the knowledge and practical know-how to become a wireless hacker.
Table of Contents (18 chapters)
BackTrack 5 Wireless Penetration Testing
About the Author
About the Reviewer

Time for action – De-Authentication DoS attack

Follow these instructions to get started:

  1. Let us configure out Wireless Lab network to use Open Authentication and no encryption. This will allow us to see the packets using Wireshark easily:

  2. Let us connect a Windows client to the access point. We will see the connection in the airodump-ng screen:

  3. Now on the attacker machine, let us run a directed De-Authentication attack against this:

  4. Note how the client gets disconnected from the access point completely. We can verify the same on the airodump-ng screen as well:

  5. If we use Wireshark to see the traffic, you will notice a lot of De-Authentication packets over the air which we just sent:

  6. We can do the same attack by sending a Broadcast De-Authentication packet on behalf of the access point to the entire wireless network. This will have the effect of disconnecting all connected clients:

What just happened?

We successfully sent De-Authentication frames to both the access point and the client. This has...