Hello allz,
I have the following data_acl configuration:
--- snip ---
acl_check_data:
deny message = Found blacklisted attachment extension:
$found_extension
demime = txt:pdf
accept
--- snap ---
Now in most cases, mails containing pdf attachments are rejected now, but if
the filename contains i. e. german umlaut characters like ä, ü or ö, Microsoft
Outlook (tested with Outlook 2003) creates a mail containing MIME blocks like
this one:
--- snip ---
------=_NextPart_000_0030_01C67DB6.D1502C10
Content-Type: application/pdf;
name="=?iso-8859-1?Q?T=FCbingenhin.pdf?="
Content-Transfer-Encoding: base64
Content-Disposition: attachment;
filename="=?iso-8859-1?Q?T=FCbingenhin.pdf?="
--- snap ---
In that case, exiscan seems to miss that this mail contains the file
"Tübingenhin.pdf", which should be blocked.
I don't know if this is a known bug (I'm using exim 4.34 atm.) and if it has
been fixed in a newer version of exim, because I've found nothing about that in
the exim-users archives.
Cheers,
--
Christian Hertel
Netzwerk-Sicherheit/Netzwerk-Applikationen
infoServe GmbH
Nell-Breuning-Allee 6
D-66115 Saarbruecken
T: (0681) 8 80 08 - 59
F: (0681) 8 80 08 - 33
www.infos.de
mailto: [EMAIL PROTECTED]
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