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coWPAtty for Windows MAIN:
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"coWPAtty is designed to audit the pre-shared key (PSK) selection for WPA networks based on the TKIP protocol." - Joshua Wright. & \4 h; g. W% d3 v6 M2 k: _( b2 r7 B# n3 ]8 ^
3 ^ p7 T& p, ]0 y6 zProject 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
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Precomputing WPA PMK to crack WPA PSK3 _/ [1 c0 c3 m2 i; j
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- s" k) @ X* L; V; o( ]coWPAtty Precomputed WPA Attack4 J+ z/ k, t; c) m* ?
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. Z, d1 z* ?% K1 ~coWPAtty Recomputed WPA2 Attack
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; E% P8 q O6 d" U N& l! e0 W, D0 z+ Q7 KcoWPAtty Usage:
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coWPAtty Dictionary Attack:
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# O( A( G* i( ^$ p* a+ @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.- H6 G" y7 {. Z2 M3 Q4 F. _# V
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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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1 f3 ~! p1 o+ Pcowpatty -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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wpapsk-linksys.dump is the capture containing the four-way handshake# R/ Y+ r! h: n& Y, S) U
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dict is the password file$ [5 X0 T3 G! c: Z
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& E; m! z# @, D. V' ilinksys is the network SSID" l; e0 ]( M" D( H+ a6 l- u
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$ E- n# q% U" X, B. l8 Z: D( uPrecomputing WPA PMK to crack WPA PSK:, {# Z6 Q T, s( e) w" c- s" E8 u
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& p2 D: ]6 }! ]5 @3 V% m3 a2 ngenpmkis 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.9 \, e F9 }) }; v3 W0 V
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" U9 |) {1 T' f( lSo 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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4 {3 h* H( W; ^3 o9 kdict is the password file
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linksys.hashfile is our output file. Z5 p, I3 t: q; m. n( I Y) J
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coWPAtty Precomputed WPA Attack r4 n4 v$ |) [- ]* }/ }3 D
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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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cowpatty -d linksys.hashfile -r wpapsk-linksys.dump -s linksys ; g5 ~, J9 V. a7 E) n
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wpa-test-01.cap is the capture containing the four-way handshake# f- w. J i4 h, G0 Q& f1 g# c$ ~
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" X, }# {: h4 Wlinksys.hashfile are our precomputed hashes
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8 w8 H# _6 q k* i4 P+ t, PNotice 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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2 e1 ^' n( U4 b" j6 G) M+ O- A$ K/ R6 m" ?1 I8 M- kcoWPAtty Precomputed WPA2 Attack:
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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.3 X; w$ o1 f- L0 k* H- F2 i; ]9 Y
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2 I- D+ n v- I7 Z7 _. N+ pcowpatty -d linksys.hashfile -r wpa2psk-linksys.dump -s linksys2 W( U4 w% m# v
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+ y$ w0 z" s6 C3 Ewpa2psk-linksys.dump is the capture containing the four-way handshake, W$ P$ R# O6 j5 t
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dict is the password file
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coWPAtty Tables: : C$ ]0 L1 D: K- _
- E# r' A7 D7 r/ g2 X% z' s$ O5 _. PThe 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:& @) N; `' R2 Y- a
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5 d8 h# ^, A. k. Q# d- l6 K. ^0 z6 e: m# q2 ~A 33 Gigabyte set of tables are also available: http://umbra.shmoo.com:6969/7 ^, e/ H) c1 v7 w: \9 I6 x! q/ F: ?
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Or you can buy them via DVD, direct from Renderman (initiator of the project): http://www.renderlab.net/projects/WPA-tables/
4 B/ D& P1 O4 G8 i# t H& p* P; \2 _# m本文地址:http://forum.anywlan.com/thread-37302-1-1.html |
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