[Esd-l] 2 questions about double extension check
Michael Meltzer
michael.meltzer at aed-sicad.de
Tue Aug 17 07:33:17 PDT 2004
"John D. Hardin" wrote:
> On Mon, 16 Aug 2004, Michael Meltzer wrote:
>
> > Is it possible (an if so how) to restrickt the double extension
> > check of the sanitizer to a certain minimum size of the message
> > including the attachment ?
>
> Hrm. Well, the double-extension check isn't hardcoded, it's in the
> poisoned extensions list, so you could try this:
>
> 1) Make two poison lists, one with the all extensions including the
> double-extension entries, the other omitting just the
> double-extension entries. Then,
>
> 2) In your /etc/procmailrc where you set your poison filename, try
> something like this:
>
> POISONED_EXECUTABLES=/etc/procmail/list-without-doubles
>
> :0
> * > 200000
> {
> POISONED_EXECUTABLES=/etc/procmail/list-with-doubles
> }
>
> (substitute whatever size you want in place of the "200000")
thank you very much. I changed my /etc/procmailrc as suggested.
>
>
> > Is it possible to check double extensions only against the
> > extensions in the MANGLE_EXTENSION variable or against an other
> > variable or file ?
>
> At the moment only $MANGLE_EXTENSION extensions are checked against
> the poisoned filenames list.
I think this applies to the last/real extension. What I ment is the last but one extension.
Sorry for my inaccurate question.
Michael
>
>
> --
> John Hardin KA7OHZ ICQ#15735746 http://www.impsec.org/~jhardin/
> jhardin at impsec.org FALaholic #11174 pgpk -a jhardin at impsec.org
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