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BackTrack 5 Wireless Penetration Testing Beginner's Guide

You're reading from  BackTrack 5 Wireless Penetration Testing Beginner's Guide

Product type Book
Published in Sep 2011
Publisher Packt
ISBN-13 9781849515580
Pages 220 pages
Edition 1st Edition
Languages
Author (1):
Vivek Ramachandran Vivek Ramachandran
Profile icon Vivek Ramachandran

Table of Contents (18) Chapters

BackTrack 5 Wireless Penetration Testing
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface
1. Wireless Lab Setup 2. WLAN and Its Inherent Insecurities 3. Bypassing WLAN Authentication 4. WLAN Encryption Flaws 5. Attacks on the WLANInfrastructure 6. Attacking the Client 7. Advanced WLAN Attacks 8. Attacking WPA-Enterprise and RADIUS 9. WLAN Penetration Testing Methodology Conclusion and Road Ahead Pop Quiz Answers Index

Time for action – uncovering hidden SSIDs


Follow these instructions to get started:

  1. Using Wireshark, if we monitor the Beacon frames of the Wireless Lab network, we are able to see the SSID in plain text. You should see Beacon frames as shown in the following screenshot:

  2. Configure your access point to set the Wireless Lab network as a hidden SSID. The actual configuration option to do this may differ across access points. In my case, I need to check the Invisible option in the Visibility Status option as shown next:

  3. Now if you look at the Wireshark trace, you will find that the SSID Wireless Lab has disappeared from the Beacon frames. This is what hidden SSIDs are all about:

  4. In order to bypass them, first we will use the passive technique of waiting for a legitimate client to connect the access point. This will generate Probe Request and Probe Response packets which will contain the SSID of the network, thus revealing its presence:

  5. Alternatively, you can use aireplay-ng to send Deauthentication...

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