SecurityFocus

Is predictable spam filtering a vulnerability? Jun 16 2004 11:26AM
R Armiento (rar_bt armiento se) (7 replies)

Re: Is predictable spam filtering a vulnerability? Jun 17 2004 06:55PM
Gadi Evron (ge linuxbox org)

Re: Is predictable spam filtering a vulnerability? Jun 17 2004 05:27PM
Joel Eriksson (je-secfocus bitnux com) (3 replies)

Re: Is predictable spam filtering a vulnerability? Jun 18 2004 08:57PM
Jason Coombs (jasonc science org)

Re: Is predictable spam filtering a vulnerability? Jun 18 2004 06:52PM
PSE-L mail professional org (Sean Straw / PSE)

Re: Is predictable spam filtering a vulnerability? Jun 18 2004 06:51PM
Bill Burge (bill burge com)

Re: Is predictable spam filtering a vulnerability? Jun 17 2004 05:04PM
krispykringle gentoo org

RE: Is predictable spam filtering a vulnerability? Jun 17 2004 02:18PM
Aaron Cake (aaron vltpm com) (1 replies)

Re: Is predictable spam filtering a vulnerability? Jun 21 2004 01:23PM
Chris Brown (chris wavetex com)

Re: Is predictable spam filtering a vulnerability? Jun 17 2004 11:28AM
David F. Skoll (dfs roaringpenguin com) (4 replies)

Re: Is predictable spam filtering a vulnerability? (silently dropping messages) Jun 22 2004 02:20PM
Martin Maèok (martin macok underground cz) (2 replies)

Re: Is predictable spam filtering a vulnerability? (silently dropping messages) Jun 24 2004 07:15AM
Valdis Kletnieks vt edu

Re: Is predictable spam filtering a vulnerability? (silently dropping messages) Jun 23 2004 12:53AM
David F. Skoll (dfs roaringpenguin com) (2 replies)

Re: Is predictable spam filtering a vulnerability? (silently dropping messages) Jun 23 2004 10:46PM
der Mouse (mouse Rodents Montreal QC CA)

Re: Is predictable spam filtering a vulnerability? (silently dropping messages) Jun 23 2004 09:48PM
PSE-L mail professional org (Sean Straw / PSE) (2 replies)

Re: Is predictable spam filtering a vulnerability? (silently dropping messages) Jun 25 2004 07:49PM
der Mouse (mouse Rodents Montreal QC CA)

Re: Is predictable spam filtering a vulnerability? (silently dropping messages) Jun 25 2004 05:35PM
Seth Breidbart (sethb panix com)

Re: Is predictable spam filtering a vulnerability? Jun 20 2004 01:52PM
Luca Berra (bluca comedia it) (3 replies)

Re: Is predictable spam filtering a vulnerability? Jun 24 2004 08:32PM
Michael A. Dickerson (mikey singingtree com)

Re: Is predictable spam filtering a vulnerability? Jun 24 2004 07:19AM
Valdis Kletnieks vt edu

Re: Is predictable spam filtering a vulnerability? Jun 23 2004 05:07PM
PSE-L mail professional org (Sean Straw / PSE) (2 replies)

Re: Is predictable spam filtering a vulnerability? Jun 24 2004 07:42PM
The Fungi (fungi yuggoth org)

Re: Is predictable spam filtering a vulnerability? Jun 24 2004 05:44PM
John Fitzgibbon (bugtraq jfitz com) (1 replies)

Re: Is predictable spam filtering a vulnerability? Jun 25 2004 05:08AM
PSE-L mail professional org (Sean Straw / PSE)

Re: Is predictable spam filtering a vulnerability? Jun 19 2004 02:56PM
Kyle Wheeler (kyle-bugtraq memoryhole net)

Re: Is predictable spam filtering a vulnerability? Jun 19 2004 12:49AM
Jon Fiedler (jmf9 cwru edu) (1 replies)

David F. Skoll wrote:

>On Wed, 16 Jun 2004, R Armiento wrote:
>
>
>
>>However, 'C':s spam filter silently drops the email.
>>
>>
>
>In my opinion, any spam filter that silently drops e-mail is broken, and
>is indeed a security risk. A spam filter MUST respond with a 500 SMTP
>failure code if it rejects a message.
>
>Regards,
>
>David.
>
>
This ignores client side spam filters, and doesn't really change the
attack. The 500 message would be sent back to A, but not B, so B is
still in the dark about C not receiving the emails.

jon

[ reply ]

Re: Is predictable spam filtering a vulnerability? Jun 19 2004 01:29AM
David F. Skoll (dfs roaringpenguin com)

RE: Is predictable spam filtering a vulnerability? Jun 17 2004 08:26AM
Hamlesh Motah (admin hamlesh com)

Re: Is predictable spam filtering a vulnerability? Jun 17 2004 08:21AM
Ilya Sher (ilya79 actcom net il)