coWPAtty for Windows MAIN:" c# [' V" W5 W: S0 @- t+ L- A" K8 ~2 `1 G5 G3 z4 u! e
"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
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Project Homepage: http://www.willhackforsushi.com/Cowpatty.html
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% C- O+ P% E3 j8 ~* z$ bLocal Mirror: Cowpatty-4.0-win32.zip MD5: aa9ead2aacfcc493da3684351425d4c6
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. f- l/ e: g2 a, E% scoWPAtty Dictionary Attack
# ]& `$ t' f) J1 I- D# ~4 G% C. M; ~7 h4 W' N$ U0 v0 j Precomputing WPA PMK to crack WPA PSK
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- F% P/ E$ w7 Q$ e7 b- j coWPAtty Precomputed WPA Attack
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coWPAtty Recomputed WPA2 Attack
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+ M/ B, j+ x4 f; XcoWPAtty Tables
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+ [: [- K- w- b! [$ Y8 ? n4 CcoWPAtty Usage:" l' Q1 y& _/ ]; a, B. K
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) f% h7 _( ] | n% }6 o2 ]8 v2 r' PcoWPAtty Dictionary Attack:
3 H% Q) a- _$ C A# S9 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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8 u7 J1 z7 p4 x1 @# gAs 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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! I1 T( d* M* Q% X7 T2 _4 _1 U* _wpapsk-linksys.dump is the capture containing the four-way handshake
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dict is the password file
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8 _4 ], y1 ^1 W5 W2 @& b1 H' ~linksys is the network SSID
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Precomputing WPA PMK to crack WPA PSK:& ?( q1 a- w9 ?+ R, ^4 }& y8 k& Z' [
& W# b- `+ t# P: r; ygenpmkis 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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2 {, B( m, Z. Z0 M& T9 hSo 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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! ?* R3 ]% L6 t6 p9 hdict is the password file
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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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coWPAtty Precomputed WPA Attack:4 z7 T. n" N& j p5 E1 G! A3 g) J4 f/ R' C" N& F* B& I
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
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wpa-test-01.cap is the capture containing the four-way handshake
* b& P% y' B y: u) h0 T) X8 j# m linksys.hashfile are our precomputed hashes
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3 f! K: y* t; L: W! ?; N0 q6 b6 M: y# eNotice 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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# `. W7 b$ h- v' ?3 z1 ccoWPAtty Precomputed WPA2 Attack:- d( ^7 X: ~* l+ ]0 B3 Q( v% q" B; q& m* O3 j
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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* y! a! Q' w6 _* ^9 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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0 A7 _% g( _7 O# c3 g: v9 t6 @# J' Y. P7 t* G, X6 `/ LcoWPAtty Tables:
6 N9 p/ h O: T+ m. f( A8 ?! 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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# v0 Z1 T% {# ]/ Q- J# N( T' j6 [http://torrents.lostboxen.net/co ... atty-4.0_2006-10-19
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; _3 ~# o' y$ c Z+ wA 33 Gigabyte set of tables are also available: http://umbra.shmoo.com:6969/$ d5 C" P* g$ p! D, i8 a4 A8 ^6 T! e" B+ p3 b/ m! R8 S
9 c( S6 U6 a9 D1 b9 i4 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！
