coWPAtty for Windows MAIN:" c# [' V" W5 W: S0 @- t+ L- A" K
! B! V' Q. @, r"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, a8 l# }% A; U" P! f$ g
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
: K' w6 {9 C! u7 C/ g; ~7 h4 W' N$ U0 v0 j Precomputing WPA PMK to crack WPA PSK
! {1 c, m! w$ U- F% P/ E$ w7 Q$ e7 b- j coWPAtty Precomputed WPA Attack
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8 w; H# b; E* ]coWPAtty Recomputed WPA2 Attack
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coWPAtty Tables
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9 T2 A( L3 ]6 k. B k* B! ccoWPAtty Dictionary Attack:$ @2 M; L/ s y, \# G9 G2 n8 z
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.
1 v8 o* K( {! C4 w& ?7 g" g9 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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: w( n2 l% r) TAs 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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" b9 D, {7 Q e: ]wpapsk-linksys.dump is the capture containing the four-way handshake
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9 q! }8 A2 K( f4 S; Q- {dict is the password file
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, _1 S4 Z4 d% \/ @ ~1 V# t! Dlinksys is the network SSID
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Precomputing WPA PMK to crack WPA PSK:& ?( q1 a- w9 ?+ R, ^4 }& y8 k& Z' [
( Z9 p! h2 y4 A% d jgenpmkis 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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" b. ]) H) x: x& u+ `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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6 i1 |, K& d cdict is the password file
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linksys.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/ e& g! D: ?* c9 |0 @- f
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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( R+ P! o0 a( ?' `6 Q, Gcowpatty -d linksys.hashfile -r wpapsk-linksys.dump -s linksys
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2 W' K; A9 t# w: P7 zwpa-test-01.cap is the capture containing the four-way handshake
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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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% {. b+ I0 v# F4 S# `. W7 b$ h- v' ?3 z1 ccoWPAtty Precomputed WPA2 Attack:- d( ^7 X: ~* l+ ]0 B
. Q0 Z. c& Q$ _" r. a2 j- }$ ocoWPAtty4.0 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- N1 C: |: r; T4 `: h% X+ ]& j9 d3 ^+ Y3 p: {; P& A cowpatty -d linksys.hashfile -r wpa2psk-linksys.dump -s linksys
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; w8 L9 A) r. a# R4 u Z9 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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1 {3 V! b% U0 ?+ Y% O linksys is the network SSID
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# [- M9 G. }& i1 \( ^) }( o1 p: v9 t6 @# J' Y. P7 t* G, X6 `/ LcoWPAtty Tables:
- }. C- K0 _5 r& u8 ?! 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:% _4 {4 V) J; Q' J/ e' r. {
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http://torrents.lostboxen.net/co ... atty-4.0_2006-10-19
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! S/ ]1 T6 {5 A! G% GA 33 Gigabyte set of tables are also available: http://umbra.shmoo.com:6969/$ d5 C" P* g$ p! D, i8 a# x( V1 K+ A& ]7 `0 h$ e, w
) Q# y* ?: O8 u7 k. N3 r4 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！