[Full-disclosure] Firefox: serious cookie stealing / same-domain bypass vulnerability

pdp (architect) pdp.gnucitizen at googlemail.com
Thu Feb 15 15:25:12 GMT 2007


weird, firefox slowly dies out

t2.html
<html>
	<body>
		<iframe src="t1.html"></iframe>
	</body>
</html>

t1.html
<html>
	<body>
		<script>location.hostname="blog.com";</script>
	</body>
</html>


On 2/15/07, pdp (architect) <pdp.gnucitizen at googlemail.com> wrote:
> the first one runs in about:blank which is restricted. the second one
> is very interesting but still not very useful because it acts like
> about:blank. hmmm it seams that the hostname field has been seriously
> overlooked.
>
> On 2/15/07, Michal Zalewski <lcamtuf at dione.ids.pl> wrote:
> > On Thu, 15 Feb 2007, pdp (architect) wrote:
> >
> > > I wander whether we can execute code on about:config or about:cache.
> >
> > Actually, there are several odd problems related to location updates and
> > location.hostname specifically, including one scenario that apparently
> > makes the script run with document.location in about: namespace.
> >
> > I did not research them any further, so I can't say if they're
> > exploitable - but you can see a demo here, feel free to poke around:
> >
> >   http://lcamtuf.coredump.cx/fftests.html
> >
> > Cheers,
> > /mz
> > http://lcamtuf.coredump.cx/
> >
>
>
> --
> pdp (architect) | petko d. petkov
> http://www.gnucitizen.org
>


-- 
pdp (architect) | petko d. petkov
http://www.gnucitizen.org




Full-Disclosure is hosted and sponsored by Secunia.