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Thread: cowpatty4.6+patch buffer overflow

  1. #1
    Member skor78's Avatar
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    Jul 2009
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    Default cowpatty4.6+patch buffer overflow

    hi

    I'm searching for hours for an answer for this problem, but had no results, i've applied the cowpatty-4.6-fixup16.patch and searched for different solutions, but i keep getting this error:

    Code:
    # cowpatty -r *.cap -d /wpa_psk-h1kari_renderman/wpa_tables.tar.lzma.md5sum -s ZON3OT
    cowpatty 4.6 - WPA-PSK dictionary attack. <jwright@hasborg.com>
    
    Collected all necessary data to mount crack against WPA2/PSK passphrase.
    Starting dictionary attack.  Please be patient.
    *** buffer overflow detected ***: cowpatty terminated
    ======= Backtrace: =========
    /lib/tls/i686/cmov/libc.so.6(__fortify_fail+0x48)[0xb764c6d8]
    /lib/tls/i686/cmov/libc.so.6[0xb764a800]
    cowpatty[0x804a914]
    cowpatty[0x804af53]
    /lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xe5)[0xb7568685]
    cowpatty[0x8048cb1]
    ======= Memory map: ========
    08048000-0804d000 r-xp 00000000 00:0f 14193      /usr/local/bin/cowpatty
    0804d000-0804e000 r--p 00004000 00:0f 14193      /usr/local/bin/cowpatty
    0804e000-0804f000 rw-p 00005000 00:0f 14193      /usr/local/bin/cowpatty
    09121000-09142000 rw-p 00000000 00:00 0          [heap]
    b7537000-b7538000 rw-p 00000000 00:00 0
    b7538000-b754c000 r-xp 00000000 00:0f 511        /usr/lib/libz.so.1.2.3.3
    b754c000-b754e000 rw-p 00013000 00:0f 511        /usr/lib/libz.so.1.2.3.3
    b754e000-b7550000 r-xp 00000000 00:0f 33         /lib/tls/i686/cmov/libdl-2.8.90.so
    b7550000-b7551000 r--p 00001000 00:0f 33         /lib/tls/i686/cmov/libdl-2.8.90.so
    b7551000-b7552000 rw-p 00002000 00:0f 33         /lib/tls/i686/cmov/libdl-2.8.90.so
    b7552000-b76aa000 r-xp 00000000 00:0f 39         /lib/tls/i686/cmov/libc-2.8.90.so
    b76aa000-b76ac000 r--p 00158000 00:0f 39         /lib/tls/i686/cmov/libc-2.8.90.so
    b76ac000-b76ad000 rw-p 0015a000 00:0f 39         /lib/tls/i686/cmov/libc-2.8.90.so
    b76ad000-b76b0000 rw-p 00000000 00:00 0
    b76b0000-b77e3000 r-xp 00000000 00:0f 1845       /usr/lib/i686/cmov/libcrypto.so.0.9.8
    b77e3000-b77eb000 r--p 00132000 00:0f 1845       /usr/lib/i686/cmov/libcrypto.so.0.9.8
    b77eb000-b77f8000 rw-p 0013a000 00:0f 1845       /usr/lib/i686/cmov/libcrypto.so.0.9.8
    b77f8000-b77fc000 rw-p 00000000 00:00 0
    b77fc000-b782d000 r-xp 00000000 00:0f 6485       /usr/lib/libpcap.so.1.0.0
    b782d000-b782e000 r--p 00031000 00:0f 6485       /usr/lib/libpcap.so.1.0.0
    b782e000-b782f000 rw-p 00032000 00:0f 6485       /usr/lib/libpcap.so.1.0.0
    b7830000-b783d000 r-xp 00000000 00:0f 1102       /lib/libgcc_s.so.1
    b783d000-b783e000 r--p 0000c000 00:0f 1102       /lib/libgcc_s.so.1
    b783e000-b783f000 rw-p 0000d000 00:0f 1102       /lib/libgcc_s.so.1
    b783f000-b7844000 rw-p 00000000 00:00 0
    b7844000-b785e000 r-xp 00000000 00:0f 27         /lib/ld-2.8.90.so
    b785e000-b785f000 rw-p 00000000 00:00 0
    b785f000-b7860000 r--p 0001a000 00:0f 27         /lib/ld-2.8.90.so
    b7860000-b7861000 rw-p 0001b000 00:0f 27         /lib/ld-2.8.90.so
    bff59000-bff7a000 rw-p 00000000 00:00 0          [stack]
    ffffe000-fffff000 r-xp 00000000 00:00 0          [vdso]
    Aborted
    I see in other posts that they start testing passwords and the error is later on, i can't even get started.

    please help.

  2. #2
    Developer
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    Default Re: cowpatty4.6+patch buffer overflow

    If you patched the one in Backtrack you probably just reversed our patch since it was already working fine. That fix up patch is really old.

  3. #3
    Member skor78's Avatar
    Join Date
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    Default Re: cowpatty4.6+patch buffer overflow

    but i was having exactly the same error, before trying to patch. I've noticed in the system messages, saying it was already patched, but i just stating that i've searched, without results. can u please help me with this?

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