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Kali Linux Wireless Penetration Testing Beginner???s Guide

You're reading from   Kali Linux Wireless Penetration Testing Beginner???s Guide Master wireless testing techniques to survey and attack wireless networks with Kali Linux, including the KRACK attack

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Product type Paperback
Published in Dec 2017
Publisher
ISBN-13 9781788831925
Length 210 pages
Edition 3rd Edition
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Authors (3):
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Vivek Ramachandran Vivek Ramachandran
Author Profile Icon Vivek Ramachandran
Vivek Ramachandran
Cameron Buchanan Cameron Buchanan
Author Profile Icon Cameron Buchanan
Cameron Buchanan
Daniel W. Dieterle Daniel W. Dieterle
Author Profile Icon Daniel W. Dieterle
Daniel W. Dieterle
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Toc

Table of Contents (14) Chapters Close

Preface 1. Wireless Lab Setup FREE CHAPTER 2. WLAN and Its Inherent Insecurities 3. Bypassing WLAN Authentication 4. WLAN Encryption Flaws 5. Attacks on the WLAN Infrastructure 6. Attacking the Client 7. Advanced WLAN Attacks 8. KRACK Attacks 9. Attacking WPA-Enterprise and RADIUS 10. WLAN Penetration Testing Methodology 11. WPS and Probes A. Pop Quiz Answers 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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