coWPAtty for Windows MAIN:" c# [' V" W5 W: S0 @- t+ L- A" K4 C) ]3 |% A5 m8 g, ]0 Z' u
"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, a" S6 d% L* W+ I# L. @
Project Homepage: http://www.willhackforsushi.com/Cowpatty.html
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0 _+ E3 h" j+ ^; FLocal Mirror: Cowpatty-4.0-win32.zip MD5: aa9ead2aacfcc493da3684351425d4c6
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coWPAtty Dictionary Attack
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; ~7 h4 W' N$ U0 v0 j Precomputing WPA PMK to crack WPA PSK
F1 B C$ E) l' {# v- F% P/ E$ w7 Q$ e7 b- j coWPAtty Precomputed WPA Attack
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% A. r' _9 W" c3 wcoWPAtty Recomputed WPA2 Attack
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% K; j' K6 V* M5 [$ E6 jcoWPAtty Tables
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coWPAtty Dictionary Attack:3 f- z: V! n% z. y3 i; ~
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.
+ y% ~( ~* }3 k( g9 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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$ T6 c# w- \, a# D L- {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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% Q/ P/ G1 V, P0 F1 Xwpapsk-linksys.dump is the capture containing the four-way handshake
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9 ~! J4 H5 R3 [( B" }8 \6 U% Qdict is the password file
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linksys is the network SSID
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' K: H' D- G V/ s+ bPrecomputing WPA PMK to crack WPA PSK:& ?( q1 a- w9 ?+ R, ^4 }& y8 k& Z' [
/ z% V# h8 j$ j1 o7 y& a9 Ugenpmkis 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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So to generate some hash files for a network using the SSID cuckoo we use:
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genpmk -f dict -d linksys.hashfile -s linksys
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' Q. y3 T- l! B) a% {dict is the password file
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9 U1 p5 N- X: D4 h3 _linksys.hashfile is our output file
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% F" u( X V' o+ `9 `; P linksys is the network ESSID
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; z) c: \ M) TcoWPAtty Precomputed WPA Attack:4 z7 T. n" N& j p5 E1 G! A3 g+ }3 y+ S$ N% Z' O
Now 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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- H+ |; C$ S- c; ecowpatty -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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3 U; Q4 y0 U8 X3 d6 V$ Z3 gNotice 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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0 ~4 W! X) x: g# ^* v# `. W7 b$ h- v' ?3 z1 ccoWPAtty Precomputed WPA2 Attack:- d( ^7 X: ~* l+ ]0 B+ S1 C) P! C9 i- }/ b* k
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.
% l1 s( h" n7 }0 l" o1 v% X+ ]& j9 d3 ^+ Y3 p: {; P& A cowpatty -d linksys.hashfile -r wpa2psk-linksys.dump -s linksys
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( K% b$ z. J1 Z" q- X1 X* r' r! j3 Q" s9 N* U- [" ~# J6 ], c& k7 A+ g wpa2psk-linksys.dump is the capture containing the four-way handshake
* r3 B0 k( N+ ]4 O- o: ^4 }! m. ~ dict is the password file
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* v K0 m+ Q0 `/ T6 Y' A: v9 t6 @# J' Y. P7 t* G, X6 `/ LcoWPAtty Tables: & \4 R. }8 _9 Q. ]- y
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:
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http://torrents.lostboxen.net/co ... atty-4.0_2006-10-19' Q- t) v6 V: X
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' W8 |9 g8 _8 @/ r+ k3 kA 33 Gigabyte set of tables are also available: http://umbra.shmoo.com:6969/$ d5 C" P* g$ p! D, i8 a9 d4 g' Q6 ^' F' }0 A& B" m
; _! I( K0 j" t; {' x4 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 2010-3-19 18:39
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{:2_31:} {:3_47:} 上当了，全是鸟文！