bugtraq - Re: [Full-disclosure] Firefox focus stealing vulnerability (possibly other browsers)

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Date: Tue, 13 Feb 2007 00:03:16 +0000
From: "pdp (architect)" <pdp.gnucitizen@...glemail.com>
To: "Michal Zalewski" <lcamtuf@...ne.ids.pl>
Cc: "Claus Färber" <GMANE@...rber.muc.de>,
	full-disclosure@...ts.grok.org.uk, bugtraq@...urityfocus.com
Subject: Re: [Full-disclosure] Firefox focus stealing vulnerability (possibly other browsers)

explanation of how the attack works here:

http://www.gnucitizen.org/blog/browser-focus-rip

On 2/12/07, Michal Zalewski <lcamtuf@...ne.ids.pl> wrote:
> On Mon, 12 Feb 2007, [ISO-8859-1] Claus Färber wrote:
>
> > A proper solution would be to keep a list of files explicitly selected
> > by the user and only allow uploads of files in this list. Then even if a
> > script can manipulate the field, the browser won't upload files that
> > have not been selected by the user.
>
> Not necessarily that easy: notice that it is the user who enters the name
> of a target file.
>
> Unless you want to prevent the browser from accepting any files that were
> not chosen using a visual file selector widget - but in such a case,
> there's not much point in having a manual file path entry box in the first
> place.
>
> /mz
>
> _______________________________________________
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-- 
pdp (architect) | petko d. petkov
http://www.gnucitizen.org