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coWPAtty for Windows MAIN:6 T7 G( s. a1 f8 P: W
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0 z# O" y7 X. l* P7 s$ \. s1 R"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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- u$ K* F$ J p8 e/ }3 xProject Homepage: http://www.willhackforsushi.com/Cowpatty.html
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# _; o" K, v$ H e2 kLocal Mirror: Cowpatty-4.0-win32.zip MD5: aa9ead2aacfcc493da3684351425d4c6
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7 I6 H5 ^9 P% ncoWPAtty Dictionary Attack7 e* f; V3 e3 ?" t. Q
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Precomputing WPA PMK to crack WPA PSK
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coWPAtty Precomputed WPA Attack
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coWPAtty Recomputed WPA2 Attack: m# t0 I" v" Y
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N& l! e0 W, D0 z+ Q7 KcoWPAtty Usage:9 s; V4 @' ~1 p4 k
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4 _8 |% R' s7 j: W# J$ ^! NcoWPAtty Dictionary Attack:$ z: C* g' N, W
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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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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 linksys6 M( u% M" i, y$ @; w' s
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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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. U: X( S" {. Y5 v, {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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, 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:/ G9 o( h0 ^1 r! M- ^
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4 l6 i& d9 p: R; l2 mgenpmk -f dict -d linksys.hashfile -s linksys
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" W5 T& ?7 J9 Z# `dict is the password file" S& `: f5 \& j7 E7 [
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( n/ ]* C! V/ B2 i. q1 mlinksys.hashfile is our output file T1 g1 v+ ~2 _' J$ D1 [
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4 `* @3 x% w. _1 c8 B! i1 s5 Llinksys is the network ESSID" `. a2 t, o$ X4 i
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$ D8 Z; q/ M; jcoWPAtty Precomputed WPA Attack r4 n4 v$ |) [- ]* }/ }3 D5 h# j1 M! P- N8 I2 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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( E0 M" C% c+ F3 ~1 d7 Rcowpatty -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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linksys.hashfile are our precomputed hashes/ u5 t0 S- Z3 u4 s+ s- j a
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linksys is the network ESSID
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3 d% C8 x( F) ~5 N3 A9 l3 W2 [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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1 H" p7 b4 C& y( o: i: l) {6 m" ?1 I8 M- kcoWPAtty Precomputed WPA2 Attack: m$ E. x% M2 J" A/ U1 x9 n- |
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6 N9 Z+ |' x/ F+ B0 A; H* k& hcoWPAtty4.0 is also capable of attacking WPA2 captures. Note: The same hashfile as was used with the WPA capture was also used with the WPA2capture., |# _( K8 S- _+ t1 m5 f' s
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cowpatty -d linksys.hashfile -r wpa2psk-linksys.dump -s linksys. B+ m+ z6 m. K& c$ j
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wpa2psk-linksys.dump is the capture containing the four-way handshake4 i u5 G8 H. J" N
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dict is the password file4 D9 u# L0 v" \" n p
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linksys is the network SSID. L5 u, R1 m) m! d
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coWPAtty Tables:
2 t0 L2 P# o2 v- 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- a6 O0 \( F7 F1 ?, C9 j; W
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- 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: ?, M( ?/ i, I9 o% d
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' z9 M7 k1 v% a0 |Or you can buy them via DVD, direct from Renderman (initiator of the project): http://www.renderlab.net/projects/WPA-tables/9 e. A: R3 E% f8 ^4 l- x
# t H& p* P; \2 _# m本文地址:http://forum.anywlan.com/thread-37302-1-1.html |
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