bugtraq - Re: [Full-disclosure] Firefox bookmark cross-domain surfing vulnerability

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <6905b1570702211617k183d9260i9e00ed6f80accd73@mail.gmail.com>
Date: Thu, 22 Feb 2007 00:17:42 +0000
From: "pdp (architect)" <pdp.gnucitizen@...glemail.com>
To: "Michal Zalewski" <lcamtuf@...ne.ids.pl>
Cc: bugtraq@...urityfocus.com, security@...illa.org,
	full-disclosure@...ts.grok.org.uk
Subject: Re: [Full-disclosure] Firefox bookmark cross-domain surfing vulnerability

michal, is that a feature or a bug? maybe it is not obivous to me what
you are doing but it i feel that it is almost like asking the user to
bookmark a bookmarklet. of course it is a security problem if you
execute untrusted bookmarklet on a page :).

On 2/21/07, Michal Zalewski <lcamtuf@...ne.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
>
> /mz
> http://lcamtuf.coredump.cx
>
> _______________________________________________
> Full-Disclosure - We believe in it.
> Charter: http://lists.grok.org.uk/full-disclosure-charter.html
> Hosted and sponsored by Secunia - http://secunia.com/
>


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