Cracking WEP the FBI way

WEP also known as Wired Equivalent Privacy was intended to provide comparable confidentiality to a traditional wired network. Several security weaknesses have been identified. Despite the weaknesses, WEP provides a level of security that can deter casual snooping.

The FBI method relies on the following tools: Kismet and Aircrack. Both can be found on Linux live cds such as knoppix.

Do the following if you have the tools available:

1. Run Kismet to find your target network. Get the SSID and the channel.
2. Run Airodump and start capturing data.
3. With Aireplay, start replaying a packet on the target network. (You can find a ‘good packet’ by looking at the BSSID MAC on Kismet and comparing it to the captured packet’s BSSID MAC)
4. Watch as Airodump goes crazy with new IVs. Thanks to Aireplay.
5. Stop Airodump when you have about 1,000 IVs.
6. Run Aircrack on the captured file.
7. You should see the WEP key infront of you now.

source

Tags: aireplay, airodump, fbi, kismet, ssid, wep cracking, wpa
Categories: Hacking

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2 Responses to “Cracking WEP the FBI way”

1. pad says:

   July 3, 2006 at 2:28 pm

   but u need a minimum of 100.000 IVs. sometimes it works with 80.000 IVS. but 1.000 THATS NOT CORRECT !

   Reply
2. Matt says:

   January 10, 2010 at 11:21 pm

   That’s nothing Special I hack wep on my iPhone in under 5 min now that’s cool and nobody can say it’s not :)

   Reply