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Kali Linux Wireless Penetration Testing Beginner???s Guide

Kali Linux Wireless Penetration Testing Beginner???s Guide

By : Dieterle, Cameron Buchanan, Vivek Ramachandran
4.6 (12)
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Kali Linux Wireless Penetration Testing Beginner???s Guide

Kali Linux Wireless Penetration Testing Beginner???s Guide

4.6 (12)
By: Dieterle, Cameron Buchanan, Vivek Ramachandran

Overview of this book

As wireless networks become ubiquitous in our lives, wireless penetration testing has become a key skill in the repertoire of the professional penetration tester. This has been highlighted again recently with the discovery of the KRACK attack which enables attackers to potentially break into Wi-Fi networks encrypted with WPA2. The Kali Linux security distribution comes with a myriad of tools used for networking attacks and detecting security loopholes. Kali Linux Wireless Penetration Testing Beginner's Guide, Third Edition has been updated to Kali Linux 2017.3 with the latest methodologies, including full coverage of the KRACK attack and how to defend against it. The book presents wireless pentesting from the ground up, introducing all elements of penetration testing with each new technology. You'll learn various wireless testing methodologies by example, from the basics of wireless routing and encryption through to detailed coverage of hacking methods and attacks such as the Hirte and Caffe Latte.
Table of Contents (14 chapters)
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13
Index

Time for action – cracking WPA-PSK weak passphrase

Follow the given instructions to get started:

  1. Let's first connect to our access point Wireless Lab and set the access point to use WPA-PSK. We will set the WPA-PSK passphrase to abcdefgh so that it is vulnerable to a dictionary attack:
    Time for action – cracking WPA-PSK weak passphrase
  2. We start airodump-ng with the following command so that it starts capturing and storing all packets for our network:
    airodump-ng --bssid 00:21:91:D2:8E:25 --channel 11 --write WPACrackingDemo wlan0mon
    

    The following screenshot shows the output:

    Time for action – cracking WPA-PSK weak passphrase
  3. Now, we can wait for a new client to connect to the access point so that we can capture the four-way WPA handshake, or we can send a broadcast deauthentication packet to force clients to reconnect. We do the latter to speed things up. The same thing can happen again with the unknown channel error. Again, use --ignore-negative-one. This can also require more than one attempt:
    Time for action – cracking WPA-PSK weak passphrase
  4. As soon as we capture a WPA handshake, the airodump-ng tool will indicate it in the top...

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