Messages in this thread | | | Date | Tue, 24 Feb 2004 17:59:43 +0100 | From | Tomas Szepe <> | Subject | Re: can i modify ls |
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On Feb-24 2004, Tue, 11:44 -0500 Richard B. Johnson <root@chaos.analogic.com> wrote:
> On Tue, 24 Feb 2004, Tomas Szepe wrote: > > > On Feb-24 2004, Tue, 15:55 +0000 > > Alessandro Salvatori <a.salvatori@universitari.crocetta.org> wrote: > > > > > it's quite interesting... > > > > Actually, it's not. > > > > 1) The presence/absence of the read permission on a directory determines > > whether the user will be able to list the directory's contents. > > > > 2) The fs permission model is enforced by the kernel. Trying to impose > > additional restrictions in userspace is fragile, futile and > > an incredibly stupid idea. > > If you don't have any programming tools and no access to any (like > a banking or restrictive office environment), and there is no > way to get any external executable files to run, i.e., no floppy > or no shell that could possibly access one, then writing a minimal > 'ls' program that allows the clerk to see what's in her directory > might be useful.
So what is it exactly that prevents the admin from running /bin/chmod in the setup you're describing?
-- Tomas Szepe <szepe@pinerecords.com> - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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