[Esd-l] FW: [Full-Disclosure] Bypassing SMTP Content Protection with a Flick of a Button

[John D. Hardin]

On Thu, 12 Sep 2002, Rick Thompson wrote:

> Thought you guys might want to peruse this.  Some of these got thru the
> filters, only to be blocked by Outlook (v 2000, patched).
> 
> -----Original Message-----
> From: full-disclosure-admin at lists.netsys.com
> 
>   Bypassing SMTP Content Protection with a Flick of a Button
> ------------------------------------------------------------------------
> 
>      Content-type: message/partial; id="ABC at host.com";
>                    number=1; total=2

The trivial solution is to block message/partial MIME types.

I suppose this increases the priority of MIME type support in the
poison list...

--
 John Hardin KA7OHZ    ICQ#15735746    http://www.impsec.org/~jhardin/
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