[Esd-l] PATCH: smarter reply suppression

John D. Hardin jhardin at impsec.org
Fri Jan 30 10:55:03 PST 2004


All:

The current smart-reply-suppression code is subject to spoofing (as
amply illustrated by NovArg).

Attached is a patch that makes the smart reply suppression a little
smarter (smart enough to not be spoofed by NovArg at least).

Please consider applying the patch to help reduce the second-order
effects from this beastie.

Thanks.

--
 John Hardin KA7OHZ    ICQ#15735746    http://www.impsec.org/~jhardin/
 jhardin at impsec.org                        pgpk -a jhardin at impsec.org
 key: 0xB8732E79 - 2D8C 34F4 6411 F507 136C  AF76 D822 E6E6 B873 2E79
-----------------------------------------------------------------------
  "Bother," said Pooh as he struggled with /etc/sendmail.cf, "it never
  does quite what I want. I wish Christopher Robin was here."
				-- Peter da Silva in a.s.r
-----------------------------------------------------------------------
   64 days until the Slovakian Presidential Election
-------------- next part --------------
*** html-trap.procmail	2003-09-07 10:14:23-07	1.139
--- html-trap.procmail	2004-01-30 10:28:23-08
***************
*** 1384,1390 ****
        }
      
        :0 H
-       * $! ^Received: from ([^ .]+\.)*($FROMDOM|$FROMDOM3|$FROMDOM2) \(
        * $! ^Received: from [^ ]+ \(([^ .]+\.)*($FROMDOM|$FROMDOM3|$FROMDOM2)[ ]
        {
          REPLY_SUPPRESSED="NOTICE: Envelope sender domain $FROMDOM not supported by Received: path. Suppressing sender notification.${NL}"
--- 1389,1394 ----


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