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Date:      Sat, 29 Aug 2009 02:24:31 +0100
From:      RW <rwmaillists@googlemail.com>
To:        freebsd-questions@freebsd.org
Subject:   Re: SUID permission on Bash script
Message-ID:  <20090829022431.5841d4de@gumby.homeunix.com>
In-Reply-To: <87y6p4pbd0.fsf@kobe.laptop>
References:  <beaf3aa50908280124pbd2c760v8d51eb4ae965dedc@mail.gmail.com> <87y6p4pbd0.fsf@kobe.laptop>

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On Fri, 28 Aug 2009 11:54:19 +0300
Giorgos Keramidas <keramida@ceid.upatras.gr> wrote:

> On Fri, 28 Aug 2009 09:24:35 +0100, Jeronimo Calvo
> <jeronimocalvop@googlemail.com> wrote:

> > As far as i know, using SUID, script must runs with root
> > permissions... so i shoudnt get "Permission denied", what im doing
> > wrong??
> 
> No it must not.  There are security reasons why shell scripts are not
> setuid-capable.  You can find some of them in the archives of the
> mailing list, going back at least until 1997.

I'm bit puzzled by this, previous threads have given the impression
that this is a myth, for example:

http://www.mail-archive.com/freebsd-questions@freebsd.org/msg185134.html

So are scripts actually incapable of running setuid?



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