In the Fall semester of my sophomore year at Bloomsburg University, I took a highly anticipated class that was being offered for the first time. This class was Intro to Hacking, taught by Dr. Polstra. We looked at many aspects of hacking, such as debugging assembly and scanning for vulnerable services. One of the most exciting parts of the class was the wireless password cracking. Luckily, I took notes during class and I would like to share them with you. This is how you go about hacking wireless networks with WEP security.
Background - Intro to Hacking
- Kali Linux
- Includes the Air-ng Suite
- Wireless Adapter
- A router to hack
- A client already on the network
- Permission to crack, it is otherwise illegal
1.) Set up a monitor interface.With Kali Linux booted up, make sure you have a wireless interface to work with.
# iwconfigA very popular wireless interface name is wlan0.
# airmon-ng start [WIRELESSINTERFACE]
Make sure to KILL any recommended processes.
# kill [PID1] [PID2] [PID3]
2.) Start monitoring traffic.
The top part shows all Access Points.
The bottom part shows all clients.
4.) Generating more traffic.
ConclusionWhile WEP security is rarely seen, it's a good idea to understand why. Given enough packets and only one client, a WEP key can be easily obtained. I do not take any responsibility for actions and damage that is caused by the misuse of this tutorial. I only distribute it for those who wish to learn from it. Use it at your own risk.
For a more applicable hack, please read my other blog post on WPA/WPA hacking.
Thanks for reading!