|
Full Disclosure
mailing list archives
Re: Firefox onUnload + document.write() memory corruption vulnerability (MSIE7 null ptr)
From: Michal Zalewski <lcamtuf () dione ids pl>
Date: Tue, 27 Feb 2007 14:29:11 +0100 (CET)
On Tue, 27 Feb 2007, Richard Moore wrote:
<html>
<body onunload="location = self.location">
<a href="http://slashdot.org/";>http://slashdot.org/</a>
</body>
</html>
Yeah, and the other way round: http://lcamtuf.coredump.cx/ietrap/, when
used with FF 2.0.0.2, puts you on a page that:
1) Has URL bar data and favicon from the target site,
2) Views source of what you added with document.write(),
3) Displays as blank.
Moreover, repeatedly setting document.location = "xxx"; on departure may
land you at slashdot.org/xxx instead (meaning the update is being
performed in the context of the new page).
Although this looks like a Really Bad Thing (tm), I didn't succeed in
modifying /ietrap/ to display a malicious payload (though feels like it's
sooo close), nor in manipulating DOM in the latter example to do anything
other than annoying the user (because 2.0.0.1 kept crashing ;-). Still,
I'm not gonna sleep well until this is fixed.
/mz
_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/
 By Date 
By Thread
Current thread:
- Re: Firefox onUnload + document.write() memory corruption vulnerability (MSIE7 null ptr), (continued)
|
Intro
