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 EAP-TTLS

Follow the given instructions to get started:

  1. EAP-TTLS is also enabled by default in eap.conf. Let us start the Radius server and monitor the log file:

  2. We connect the client and enter the credentials SecurityTube as the Username and demo12345 as the Password:

  3. Immediately, the MSCHAP-v2 challenge / response appears in the log file:

  4. We again use Asleap to crack the password used. It is important to note that any password list you use, must contain the password used by the user. In order to illustrate that if this is not true, we will not be able to crack the password, we have deliberately ensured that the password is not there in the default list on BackTrack:

What just happened?

Cracking EAP-TTLS is almost identical to PEAP. Once the client accepts our fake certificate, we get the MSCHAP-v2 challenge / response pair. As MSCHAP-v2 is prone to dictionary attacks, we use Asleap to crack the challenge / response pair as it seems to be based out of a dictionary...