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 – cracking WEP

Follow the given instructions to get started:

  1. Let us first connect to our access point Wireless Lab and go to the settings area that deals with Wireless Encryption mechanisms:

  2. On my access point, this can be done by setting the Security Mode to WEP. We will also need to set the WEP key length. As shown in the following screenshot, I have set WEP to use 128 bit keys. I have set the Default WEP Key to WEP Key 1 and have set the value in hex to abcdefabcdefabcdefabcdef12 as the 128 bit WEP key. You can set this to whatever you choose:

  3. Once the settings are applied, the access point should now be offering WEP as the encryption mechanism of choice. Let us now set up the attacker machine.

  4. Let us bring up Wlan0 by issuing the command ifconfig wlan0 up. Then we will run airmon-ng start wlan0 to create mon0, the monitor mode interface, as shown in the following screenshot. Verify the mon0 interface has been created using iwconfig command:

  5. Let's run airodump-ng to locate...