I can confirm that the POC works on 1.0.2 and does not work on 1.0.3.
Michael Scovetta
Computer Associates
Senior Application Developer
-----Original Message-----
From: mikx [mailto:mikx@mikx.de]
Sent: Monday, April 18, 2005 6:59 AM
To: full-disclosure@lists.grok.org.uk; bugtraq@securityfocus.com;
NTBUGTRAQ@LISTSERV.NTBUGTRAQ.COM
Subject: Firelinking [Firefox 1.0.2]
__Notice
I really wonder why the Mozilla Foundation decided to release a serious
security update on a friday night and to disclose the link to my
proof-of-concept code so quickly. It wasn't intendet from my side to
release
this as a 0day exploit. Please complain to security@mozilla.org if you
disagree with their release policy.
__Summary
The link tag allows to load a custom image as the icon for a website,
displayed in the location bar and in the tab title.
By setting the href attribute of this tag to a javascript url, it is
possible to call chrome functions and run arbitrary code without user
interaction.
__Proof-of-Concept
http://www.mikx.de/firelinking/
__Status
The bug is fixed in Firefox 1.0.3. Disable Javascript as a workaround.
2005-04-12 Vendor informed (bugzilla.mozilla.org #290036)
2005-04-12 Vendor confirmed bug
2005-04-15 Vendor published fix, advisory and link to PoC (mfsa2005-37)
2005-04-18 This advisory
__Affected Software
Tested with Firefox 1.0.2
__Contact Informations
Michael Krax <mikx@mikx.de>
http://www.mikx.de/?p=15
mikx
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