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Re: Sharing scripts


From: Francesco Potortì
Subject: Re: Sharing scripts
Date: Fri, 12 Mar 2010 17:15:31 +0100

>Maybe other might be able to think of some attacks that will help you 
>protect your Octave web server.

Generally speaking, an interpreter like Octave is not a thing that
should be left open for running arbitrary things on a server, unless you
are very careful about what you disable by redefining them as empty or
generating an error.

Apart from all file-related commands, probably including "source", and
all system-related commands like those already mentioned, you should
probably impose limits on cpu and memory consumption by using ulimit on
Unix and running the interpreter as a user with low privileges.  A
chroot environment would give you additional protection against
unforeseen weaknesses of the interpreter.  All in all, not something
that should be done lightly :)

-- 
Francesco Potortì (ricercatore)        Voice: +39 050 315 3058 (op.2111)
ISTI - Area della ricerca CNR          Fax:   +39 050 315 2040
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