WEP Encryption Exploit Tool Released
AirSnort is a wireless LAN (WLAN) tool which recovers encryption keys. AirSnort operates by passively monitoring transmissions, computing the encryption key when enough packets have been gathered. 802.11b, using the Wired Equivalent Protocol (WEP), is crippled with numerous security flaws. Most damning of these is the weakness described in "Weaknesses in the Key Scheduling Algorithm of RC4 " by Scott Fluhrer, Itsik Mantin and Adi Shamir. Adam Stubblefield was the first to implement this attack, but he has not made his software public.
To the best of the authors' knowledge, AirSnort is the first publicly available implementation of this attack. AirSnort requires approximately 100M-1GB of data to be gathered. Once enough packets have been gathered, AirSnort can guess the encryption password in under a second.....
AirSnort is a 802.11b 40/128 bit password cracking program. It implements this recently discovered attack. By passively gathering encrypted packets, a network's password can be cracked in a reasonable amount of time.
