Full Disclosure mailing list archives
Re: Firefox bookmark cross-domain surfing vulnerability
From: v3dt3n <mkmaxx () gmail com>
Date: Thu, 22 Feb 2007 07:54:50 +0530
On 2/22/07, Michal Zalewski <lcamtuf () dione ids pl> wrote: > There is an interesting vulnerability in how Firefox handles bookmarks. > The flaw allows the attacker to steal credentials from commonly used > browser start sites (for Firefox, Google is the seldom changed default; > that means exposure of GMail authentication cookies, etc). > > The problem: it is relatively easy to trick a casual user into bookmarking > a window that does not point to any physical location, but rather, is an > inline data: URL scheme. When such a link is later retrieved, Javascript > code placed therein will execute in the context of a currently visited > webpage. The destination page can then continue to load without the user > noticing. > > The impact of such a vulnerability isn't devastating, but as mentioned > earlier, any attention-grabbing webpage can exploit this to silently > launch attacks against Google, MSN, AOL credentials, etc. In an unlikely > case the victim is browsing local files or special URLs before following a > poisoned bookmark, system compromise is possible. > > Thanks to Piotr Szeptynski for bringing up the subject of bookmarks and > inspiring me to dig into this. > > Self-explanatory demo page: > http://lcamtuf.coredump.cx/ffbook/ > > This is being tracked as: > https://bugzilla.mozilla.org/show_bug.cgi?id=371179 In April, just after MoPHPB, Michal Zalewski is going to plan a Month of Firefox Bugs.
Oh no!! n3tty does not like that!! :(
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Current thread:
- Firefox bookmark cross-domain surfing vulnerability Michal Zalewski (Feb 21)
- Re: Firefox bookmark cross-domain surfing vulnerability Tyop? (Feb 21)
- Re: Firefox bookmark cross-domain surfing vulnerability pdp (architect) (Feb 21)
- Re: Firefox bookmark cross-domain surfing vulnerability Michal Zalewski (Feb 21)
- Re: Firefox bookmark cross-domain surfing vulnerability pdp (architect) (Feb 22)
- Re: Firefox bookmark cross-domain surfing vulnerability Michal Zalewski (Feb 22)
- Re: Firefox bookmark cross-domain surfing vulnerability pdp (architect) (Feb 22)
- Re: Firefox bookmark cross-domain surfing vulnerability Daniel Veditz (Feb 22)
- Re: Firefox bookmark cross-domain surfing vulnerability Michal Zalewski (Feb 21)
- <Possible follow-ups>
- Re: Firefox bookmark cross-domain surfing vulnerability v3dt3n (Feb 21)