[Full-disclosure] Mozilla Thunderbird : Multiple Information Disclosure Vulnerabilities

[Peter Besenbruch]

Steve Shockley wrote:
> Renaud Lifchitz wrote:
> 
>> Mozilla Thunderbird : Multiple Information Disclosure Vulnerabilities
> 
> 
> The css part of this "exploit" is actively used by Intellicontact (or 
> whatever they call themselves this week), the host of the factcheck.org 
> mailing list.  For example:
> 
> <LINK href=http://mail1.icptrack.com/track/relay.php?r=###&msgid=
> =###&act=####&admin=0&destination=http://www.factcheck.org/styles/subpage_nn.css 
> type=text/css rel=stylesheet>
> 
> To work around this, set:
> 
> user_pref("mailnews.display.html_as", 3);

A value of 1, rendering HTML as text, would be even better, I would 
think. A value of 2, simply showing the HTML source, is the safest of 
all. I'm not a big fan of HTML in e-mail, sanitized, or otherwise.

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