Penetration Testing mailing list archives
Re: Wireless wep crackin on windows
From: "Andrew A. Vladimirov" <mlists () arhont com>
Date: Fri, 21 May 2004 15:49:51 +0100
Aaron Drew wrote:
Airsnort on windows is limited. You need a card that can be put into monitormode under windows to capture the WEP packets.
Snax has sorted it out by using a demo version driver coming from AiroPeek. I wonder what AiroPeek guys think about it...
Linux drivers make this much easier.And allow to do many other things with injecting custom frames, encrypted traffic etc. Windows drivers are eons away from that, even though you can deauth undesirable hosts using AirMagnet running on Windows CE.
As for other tools, the package wep-tools contains a utility for brute forcing ASCII based WEP keys.
Mentioned it in my previous post, nice to see I am not alone :)
These keys are generated using a simple algorithm that is unfortunately flawed. It essentially reduces the keylength of WEP from 64/128 down to around 21 bits in length. Given just a couple of encrypted data packets, an offline exhaustive brute-force attack can be done in about 10-15 seconds on such keys.
That flaw applies only to 40-bit keys and was fixed ages ago. In fact, some vendors did not have that flaw at all, e.g. 3Com. What would be more interesting is porting WEPAttack to Windows, but I don't know what would be the equivalents of ZLib and libCrypto for it. Don't know much about Windows anyway, no source - no fun.
Cheers, Andrew -- Dr. Andrew A. Vladimirov CISSP #34081, CWNA, CCNP/CCDP, TIA Linux+ CSO Arhont Ltd - Information Security. Web: http://www.arhont.com http://www.wi-foo.com Tel: +44 (0)870 44 31337 Fax: +44 (0)117 969 0141 GPG: Key ID - 0x1D312310 GPG: Server - gpg.arhont.com
Current thread:
- Wireless wep crackin on windows securityfocus (May 20)
- RE: Wireless wep crackin on windows Jerry Shenk (May 20)
- RE: Wireless wep crackin on windows Chuck Herrin (May 20)
- Re: Wireless wep crackin on windows - corrections Andrew A. Vladimirov (May 21)
- RE: Wireless wep crackin on windows Chuck Herrin (May 20)
- Re: Wireless wep crackin on windows R. DuFresne (May 20)
- RE: Wireless wep crackin on windows Aaron Drew (May 21)
- Re: Wireless wep crackin on windows Andrew A. Vladimirov (May 21)
- RE: Wireless wep crackin on windows Aaron Drew (May 21)
- Re: Wireless wep crackin on windows Max (May 20)
- RE: Wireless wep crackin on windows Aaron Drew (May 21)
- Re: Wireless wep crackin on windows Andrew A. Vladimirov (May 21)
- RE: Wireless wep crackin on windows Aaron Drew (May 21)
- Re: Wireless wep crackin on windows E.Kellinis (May 25)
- RE: Wireless wep crackin on windows Jerry Shenk (May 25)
- Re: Wireless wep crackin on windows Andre Ludwig (May 26)
- RE: Wireless wep crackin on windows Jerry Shenk (May 25)
- <Possible follow-ups>
- RE: Wireless wep crackin on windows pen-test (May 21)
- RE: Wireless wep crackin on windows securityfocus (May 24)
- Re: Wireless wep crackin on windows Max (May 24)
- RE: Wireless wep crackin on windows okrehel (May 24)
- Re: Wireless wep crackin on windows vertex (May 25)
- Re: Wireless wep crackin on windows Aaron Drew (May 25)
- Re: Wireless wep crackin on windows Al Smolkin (May 26)
(Thread continues...)
- RE: Wireless wep crackin on windows Jerry Shenk (May 20)