coWPAtty for Windows MAIN:" c# [' V" W5 W: S0 @- t+ L- A" K
2 t/ d# S4 X8 C"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' k% B* _+ a( b# D% }+ V( E
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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+ I' s/ W' _6 {, qcoWPAtty Dictionary Attack
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; ~7 h4 W' N$ U0 v0 j Precomputing WPA PMK to crack WPA PSK
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coWPAtty Recomputed WPA2 Attack
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6 D6 K# u z. ]( D( y2 ~coWPAtty Tables
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coWPAtty Dictionary Attack:2 ]3 q0 Z& l( r1 _0 M) t
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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, h0 h% c! ?+ l L2 _wpapsk-linksys.dump is the capture containing the four-way handshake
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/ a* X; f% B! u, f) F* g `dict is the password file
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linksys is the network SSID
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0 L9 [4 T" E3 Q8 s3 x1 lPrecomputing WPA PMK to crack WPA PSK:& ?( q1 a- w9 ?+ R, ^4 }& y8 k& Z' [
+ \3 z3 j; l8 L2 y+ ]genpmkis 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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; c3 D- r7 B. _* ~So to generate some hash files for a network using the SSID cuckoo we use:
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( Q( @. ?% g1 |3 T, Z- O. kgenpmk -f dict -d linksys.hashfile -s linksys
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dict is the password file
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$ ?' O- R& a9 j/ K( G0 olinksys.hashfile is our output file
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coWPAtty Precomputed WPA Attack:4 z7 T. n" N& j p5 E1 G! A3 g& O% ^! c5 h& Z3 L( }
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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. ]$ _! j% p1 c6 ]$ s$ c0 U1 hcowpatty -d linksys.hashfile -r wpapsk-linksys.dump -s linksys
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' F0 H# Z. C4 L, V8 Swpa-test-01.cap is the capture containing the four-way handshake
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/ N( I! Y% d7 e, s linksys is the network ESSID
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Notice 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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: _5 Y( ~4 W2 l+ z# `. W7 b$ h- v' ?3 z1 ccoWPAtty Precomputed WPA2 Attack:- d( ^7 X: ~* l+ ]0 B' ]) t2 {: c. X/ G% K2 ^, 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.
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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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# E6 D' I. X9 A' s: ~: X: p9 N* U- [" ~# J6 ], c& k7 A+ g wpa2psk-linksys.dump is the capture containing the four-way handshake
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4 O- o: ^4 }! m. ~ dict is the password file
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: v9 t6 @# J' Y. P7 t* G, X6 `/ LcoWPAtty Tables:
8 T; t' l- ]% t" Z' ?! ?7 p8 ?! 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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- p, B2 X5 s) j/ B5 \7 Y# ghttp://torrents.lostboxen.net/co ... atty-4.0_2006-10-19
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4 J! b+ U6 o ^8 A- TA 33 Gigabyte set of tables are also available: http://umbra.shmoo.com:6969/$ d5 C" P* g$ p! D, i8 a" J6 Z- k; W6 Y' I2 p
2 S2 y) n K! T' r8 @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 2010-3-19 18:39
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{:2_31:} {:3_47:} 上当了，全是鸟文！