[Mimedefang] suggested mimedefang-filter

David F. Skoll dfs at roaringpenguin.com
Tue May 14 13:32:54 EDT 2002


On Tue, 14 May 2002, Wladyslaw Pietraszek wrote:

>  The example mimedefang-filter file in MIMEDefang v2.11 distribution
>  (examples/suggested-minimum-filter-for-windows-clients) has a small
>  omission which may result in incorrect quarantine on rare occasions
>  (fx. attachmet with the file name ".htaccess" :-).
>
>  The "return re_match ..." line in the "sub filter_bad_filename" should
>  read:
>   return re_match($entity,'\.(bat|chm|...|vbe|vbs?|vxd|wsf|wsh)$');

The trailing "$" was omitted on purpose to (try) to cope sensibly with
malformed MIME headers which could be misinterpreted one way by MIMEDefang
and a different way by e-mail clients.

Yes, .htaccess files will be blocked.  No, it's not a problem in the real
world. :-)

Regards,

Davud.




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