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

Product typeBook
Published inSep 2011
PublisherPackt
ISBN-139781849515580
Edition1st Edition
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Penetration Testing
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Author (1)
Vivek Ramachandran
Vivek Ramachandran
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Vivek Ramachandran

Vivek Ramachandran has been working on Wi-Fi security since 2003. He discovered the Caffe Latte attack and also broke WEP Cloaking, a WEP protection schema, publicly in 2007 at DEF CON. In 2011, he was the first to demonstrate how malware could use Wi-Fi to create backdoors, worms, and even botnets. Earlier, Vivek was one of the programmers of the 802.1x protocol and Port Security in Cisco's 6500 Catalyst series of switches, and he was also one of the winners of the Microsoft Security Shootout contest held in India among a reported 65,000 participants. He is best known in the hacker community as the founder of SecurityTube.net, where he routinely posts videos on Wi-Fi security, assembly language, exploitation techniques, and so on. SecurityTube.net receives over 100,000 unique visitors a month. Vivek's work on wireless security has been quoted in BBC Online, InfoWorld, MacWorld, The Register, IT World Canada, and so on. This year, he will speak or train at a number of security conferences, including Blackhat, DEF CON, Hacktivity, 44con, HITB-ML, BruCON Derbycon, Hashdays, SecurityZone, and SecurityByte.
Read more about Vivek Ramachandran

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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...

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BackTrack 5 Wireless Penetration Testing Beginner's Guide
Published in: Sep 2011Publisher: PacktISBN-13: 9781849515580
© 2011 Packt Publishing Limited All Rights Reserved

Author (1)

author image
Vivek Ramachandran

Vivek Ramachandran has been working on Wi-Fi security since 2003. He discovered the Caffe Latte attack and also broke WEP Cloaking, a WEP protection schema, publicly in 2007 at DEF CON. In 2011, he was the first to demonstrate how malware could use Wi-Fi to create backdoors, worms, and even botnets. Earlier, Vivek was one of the programmers of the 802.1x protocol and Port Security in Cisco's 6500 Catalyst series of switches, and he was also one of the winners of the Microsoft Security Shootout contest held in India among a reported 65,000 participants. He is best known in the hacker community as the founder of SecurityTube.net, where he routinely posts videos on Wi-Fi security, assembly language, exploitation techniques, and so on. SecurityTube.net receives over 100,000 unique visitors a month. Vivek's work on wireless security has been quoted in BBC Online, InfoWorld, MacWorld, The Register, IT World Canada, and so on. This year, he will speak or train at a number of security conferences, including Blackhat, DEF CON, Hacktivity, 44con, HITB-ML, BruCON Derbycon, Hashdays, SecurityZone, and SecurityByte.
Read more about Vivek Ramachandran

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