Bugtraq mailing list archives
Re: [Full-disclosure] 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
Current thread:
- Firefox onUnload + document.write() memory corruption vulnerability (MSIE7 null ptr) Michal Zalewski (Feb 23)
- Re: [Full-disclosure] Firefox onUnload + document.write() memory corruption vulnerability (MSIE7 null ptr) Daniel Veditz (Feb 26)
- Re: [Full-disclosure] Firefox onUnload + document.write() memory corruption vulnerability (MSIE7 null ptr) Stan Bubrouski (Feb 26)
- Re: [Full-disclosure] Firefox onUnload + document.write() memory corruption vulnerability (MSIE7 null ptr) Ismail Dönmez (Feb 26)
- Re: [Full-disclosure] Firefox onUnload + document.write() memory corruption vulnerability (MSIE7 null ptr) Michal Zalewski (Feb 26)
- Message not available
- Re: [Full-disclosure] Firefox onUnload + document.write() memory corruption vulnerability (MSIE7 null ptr) Michal Zalewski (Feb 27)
- Re: [Full-disclosure] Firefox onUnload + document.write() memory corruption vulnerability (MSIE7 null ptr) Stan Bubrouski (Feb 26)
- Re: [Full-disclosure] Firefox onUnload + document.write() memory corruption vulnerability (MSIE7 null ptr) Daniel Veditz (Feb 26)