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coWPAtty for Windows MAIN:" t( z! K5 ]2 A
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1 M( v9 c" M! d- V m7 w! I"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 M
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r2 B1 I z/ \) DProject Homepage: http://www.willhackforsushi.com/Cowpatty.html / L! b" l* V% v9 C
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g0 K3 C/ q' _0 _Local Mirror: Cowpatty-4.0-win32.zip MD5: aa9ead2aacfcc493da3684351425d4c6
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coWPAtty Dictionary Attack
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3 h& ?. ?. r& x: {; M0 nPrecomputing WPA PMK to crack WPA PSK
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coWPAtty Precomputed WPA Attack, d+ u( C$ H+ M5 s
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coWPAtty Recomputed WPA2 Attack1 P- P# p3 l* E2 [& w
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* N+ O- V* h2 Y! ?% B0 j N& l! e0 W, D0 z+ Q7 KcoWPAtty Usage:
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coWPAtty Dictionary Attack:) {" U% v$ {! a$ K3 I
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, A* b( o: j7 N% G {5 H @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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F" p1 j/ x8 b$ M# @ @2 x0 p; u$ hIn 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.& Z; _& K; u1 Q% v1 Q
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! i5 E6 [, [2 N4 {0 Acowpatty -f dict -r wpapsk-linksys.dump -s linksys
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# g, Y/ f; D3 eAs 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).# @. M) a& d' U) d$ M. v
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wpapsk-linksys.dump is the capture containing the four-way handshake/ ~3 n/ e Y; Q, y
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dict is the password file( G2 l/ F# F4 ?6 F7 @
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linksys is the network SSID1 q; T" Q2 W8 y' {) L5 B j
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. k& M- ]& X6 L" \; M, 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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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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genpmk -f dict -d linksys.hashfile -s linksys
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dict is the password file
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linksys.hashfile is our output file S; k3 C ?7 B7 ~* j9 [
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linksys is the network ESSID! `! b% j# E8 k7 S: B/ S0 }) n' Q
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7 { M1 V. @$ A4 PcoWPAtty Precomputed WPA Attack r4 n4 v$ |) [- ]* }/ }3 D
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8 }& H( z6 d9 Y/ O8 M4 F2 \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.) K( P* @3 y$ s% Q t7 U- V8 I
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. E& k2 p9 x" ?6 R/ r1 Jcowpatty -d linksys.hashfile -r wpapsk-linksys.dump -s linksys # d5 Y, A- d* U) q( a" ~
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wpa-test-01.cap is the capture containing the four-way handshake6 ]9 b: q$ Q& h+ _; H
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$ J# S2 t* s3 ~1 H7 qlinksys.hashfile are our precomputed hashes
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\9 N$ T9 M- [linksys is the network ESSID
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0 ]8 D! U9 v* G6 b; cNotice 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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6 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.& v! b0 Q; W' _8 K# A5 x" t4 {
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! t% [6 F2 a9 g; j) N ecowpatty -d linksys.hashfile -r wpa2psk-linksys.dump -s linksys
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; Q6 G$ s8 W0 z4 a \/ ]1 i l' Dwpa2psk-linksys.dump is the capture containing the four-way handshake
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9 p# Y! E+ I( v' ndict is the password file
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5 u; Q/ c0 t& |& d: Slinksys is the network SSID
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coWPAtty Tables:
4 _( ~1 [+ H5 [# I$ O5 k' _5 e- 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- a0 G6 b8 U( J1 ? n7 p9 I
! ^6 G7 T/ P: c6 ~4 {; `8 {# I# n$ lhttp://torrents.lostboxen.net/co ... atty-4.0_2006-10-197 e0 b3 o8 O4 D) j2 ^5 C2 s! Y3 V8 f: \" z2 d4 b
' j) n& j( A& @) I) k- 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: ?/ s3 a( f! j9 B8 Q9 G
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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/$ Y/ `8 ~) b. ^/ `6 K& w z4 Y
# t H& p* P; \2 _# m本文地址:http://forum.anywlan.com/thread-37302-1-1.html |
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