coWPAtty for Windows MAIN:" c# [' V" W5 W: S0 @- t+ L- A" K, a) K5 X5 b% z9 [5 [' ]0 C' | p& @
"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, \7 D T9 y& P' z4 Q; e- a
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
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; ~7 h4 W' N$ U0 v0 j Precomputing WPA PMK to crack WPA PSK
6 z; C2 d9 r6 c8 V/ J4 ^1 d- F% P/ E$ w7 Q$ e7 b- j coWPAtty Precomputed WPA Attack
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8 Y, T9 }: ]3 ~' P9 T% rcoWPAtty Recomputed WPA2 Attack
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coWPAtty Tables
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; x2 i4 a0 [1 w) b9 D0 d5 r. |coWPAtty Dictionary Attack:
( n: ^6 w3 G$ [: B8 r9 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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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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5 @" e/ {# B8 q$ x( WPrecomputing WPA PMK to crack WPA PSK:& ?( q1 a- w9 ?+ R, ^4 }& y8 k& Z' [1 a! u8 a. b0 |9 ]7 \7 J6 n
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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So to generate some hash files for a network using the SSID cuckoo we use:
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& @: d/ n; z; k& ngenpmk -f dict -d linksys.hashfile -s linksys
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9 |( M- r; U% G5 {; D+ zdict is the password file
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H. ^, O9 X6 b" G- k. Y# zlinksys.hashfile is our output file
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coWPAtty Precomputed WPA Attack:4 z7 T. n" N& j p5 E1 G! A3 g
* h& d, p7 s# o z6 _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
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/ N( I! Y% d7 e, s linksys is the network ESSID
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1 z$ i( N: V. q& T6 `- oNotice 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 B
8 M, r! d0 U. {9 N/ X3 {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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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:
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http://torrents.lostboxen.net/co ... atty-4.0_2006-10-19/ @2 S; d7 G4 e3 W( D+ R1 A
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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
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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！
