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Re: css3-fonts: should not dictate usage policy with respect to origin

From: Tab Atkins <tabatkins@google.com>
Date: Thu, 30 Jun 2011 15:38:44 -0700
Message-ID: <CACwK9gd+WNTdx6XBpC=7K2w6EShBg-gmpX=JfAQRY61ar8GEjQ@mail.gmail.com>
To: Brad Kemper <brad.kemper@gmail.com>
Cc: Glenn Adams <glenn@skynav.com>, John Daggett <jdaggett@mozilla.com>, John Hudson <tiro@tiro.com>, Vladimir Levantovsky <Vladimir.Levantovsky@monotypeimaging.com>, "liam@w3.org" <liam@w3.org>, StyleBeyondthePunchedCard <www-style@w3.org>, "public-webfonts-wg@w3.org" <public-webfonts-wg@w3.org>, "www-font@w3.org" <www-font@w3.org>, "Martin J." <duerst@it.aoyama.ac.jp>, Sylvain Galineau <sylvaing@microsoft.com>
On Thu, Jun 30, 2011 at 3:35 PM, Brad Kemper <brad.kemper@gmail.com> wrote:
> If there is a corporate font or specialized dingbat font that is only loaded
> and used when a person has signed into a secure site (for online banking,
> let's say), then an attacker whose site is open in another window or tab can
> find out about it using the method Tab described earlier. That is
> information leakage that would allow the attacker to know when to attack. He
> could, for instance, pop open a small window that says, "you are about to be
> automatically signed out. Click OK to stay signed in." And then the OK
> button would lead to a phishing site that looked just like the online
> banking site, and a lot of users wouldn't realize it. That is a security
> risk that has nothing to do with EULAs.

In other words, betting that a particular filetype will never be used
in malicious attacks is a good way to lose money.  ^_^

Received on Thursday, 30 June 2011 22:39:12 UTC

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