coWPAtty for Windows MAIN:" c# [' V" W5 W: S0 @- t+ L- A" K
! `" u, l4 j% @. I2 o/ `, e' C5 i"coWPAtty is designed to audit the pre-shared key (PSK) selection for WPA networks based on the TKIP protocol." - Joshua Wright. ! j4 _$ I9 I$ ~6 {, C, a8 Z0 { \% x% P3 C" [" l
Project Homepage: http://www.willhackforsushi.com/Cowpatty.html
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Local Mirror: Cowpatty-4.0-win32.zip MD5: aa9ead2aacfcc493da3684351425d4c6
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coWPAtty Dictionary Attack
9 z9 N( {' H4 D/ E" Y; ~7 h4 W' N$ U0 v0 j Precomputing WPA PMK to crack WPA PSK
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' V/ D0 [) b7 gcoWPAtty Recomputed WPA2 Attack
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coWPAtty Tables
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+ [: [- K- w- b! [$ Y8 ? n4 CcoWPAtty Usage:" l' Q1 y& _/ ]; a, B. K' l# M. B6 h( m: u* j2 j
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( E, e7 @- y7 M. ZcoWPAtty Dictionary Attack:4 z& Y I3 d/ w+ d7 o
9 a, {2 P& p m( @ Toperform the coWPAtty dictionary attack we need to supply the tool witha capture file that includes the TKIP four-way handshake, a dictionaryfile of passphrases to guess with and the SSID for the network.
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9 g1 _6 x5 V$ c, m) e: q+ k# @% d In orderto collect the four-way handshake you can either wait until a clientjoins the network or preferably you can force it to rejoin the networkusing tools like void11 or aireplay and capture the handshakes usingsomething like kismet, ethereal or airodump.
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cowpatty -f dict -r wpapsk-linksys.dump -s linksys
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As youcan see this simple dictionary attack took 51 seconds, we can speed upthis process by precomputing the WPA-PMK to crack the WPA-PSK (seebelow).
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- _' N" M2 F4 r* T# |wpapsk-linksys.dump is the capture containing the four-way handshake
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dict is the password file
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linksys is the network SSID
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Precomputing WPA PMK to crack WPA PSK:& ?( q1 a- w9 ?+ R, ^4 }& y8 k& Z' [
/ T; B! c4 f7 jgenpmkis used to precompute the hash files in a similar way to Rainbow tablesis used to pre-hash passwords in Windows LANMan attacks. There is aslight difference however in WPA in that the SSID of the network isused as well as the WPA-PSK to "salt" the hash. This means that weneed a different set of hashes for each and every unique SSID i.e. aset for "linksys" a set for "tsunami" etc.
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( f& k0 D) e5 l6 B2 G' Y- o1 CSo to generate some hash files for a network using the SSID cuckoo we use:
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: J5 H' D. A. b+ o6 cgenpmk -f dict -d linksys.hashfile -s linksys
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}" b' r6 m8 ?. X' _7 v; kdict is the password file
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linksys.hashfile is our output file
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coWPAtty Precomputed WPA Attack:4 z7 T. n" N& j p5 E1 G! A3 g
0 @ g& b6 t9 Z3 l- p# eNow wehave created our hash file we can use it against any WPA-PSK networkthat is utilising a network SSID of cuckoo. Remember the capture(wpa-test-01.cap) must contain the four-way handshake to be successful.
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cowpatty -d linksys.hashfile -r wpapsk-linksys.dump -s linksys
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wpa-test-01.cap is the capture containing the four-way handshake
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! ?5 X1 R: e c$ yNotice that cracking the WPA-PSK took 0.04 seconds with the pre-computed attacked as opposed to 200 secondswith standard dictionary attack mode, albeit you do need to pre-computethe hash files prior to the attack. However, precomputing large hashfiles for common SSIDS (e.g. linksys, tsunami) would be a sensible movefor most penetration testers.
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coWPAtty4.0 is also capable of attacking WPA2 captures. Note: The same hashfile as was used with the WPA capture was also used with the WPA2capture.
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% X+ ]& j9 d3 ^+ Y3 p: {; P& A cowpatty -d linksys.hashfile -r wpa2psk-linksys.dump -s linksys
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9 N* U- [" ~# J6 ], c& k7 A+ g wpa2psk-linksys.dump is the capture containing the four-way handshake
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8 ?! h5 l% \6 E, G3 `" n9 g1 i( ?- AThe Church of Wifi have produced some lookup tables for 1000 SSID's computed against a 170,000 word password file. The resultant table are approximately 7 Gigabytes in size and can be downloaded via Torrent:; o S" W2 S5 Y* n/ R
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0 x W3 t% h7 x; h, c# I9 Z$ l I/ `http://torrents.lostboxen.net/co ... atty-4.0_2006-10-19+ q3 z% U0 G. S3 ]
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A 33 Gigabyte set of tables are also available: http://umbra.shmoo.com:6969/$ d5 C" P* g$ p! D, i8 a! z+ ^. p$ a( r* _2 u2 G
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4 j1 N8 u) d+ W% V' ?2 W% rOr you can buy them via DVD, direct from Renderman (initiator of the project): http://www.renderlab.net/projects/WPA-tables/
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发表于 2010-3-20 22:18
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{:2_31:} {:3_47:} 上当了，全是鸟文！
