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<H1>[Mageia-sysadm] Usernames, uids, and groups</H1>
<B>Luca Berra</B>
<A HREF="mailto:mageia-sysadm%40mageia.org?Subject=Re%3A%20%5BMageia-sysadm%5D%20Usernames%2C%20uids%2C%20and%20groups&In-Reply-To=%3C20101110174058.GC1506%40maude.comedia.it%3E"
TITLE="[Mageia-sysadm] Usernames, uids, and groups">bluca at vodka.it
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<I>Wed Nov 10 18:40:58 CET 2010</I>
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<PRE>On Wed, Nov 10, 2010 at 06:25:38PM +0100, nicolas vigier wrote:
><i>On Wed, 10 Nov 2010, Luca Berra wrote:
</I>><i>
</I>>><i> On Wed, Nov 10, 2010 at 01:32:47PM +0100, Michael Scherer wrote:
</I>>>><i> Le mercredi 10 novembre 2010 à 11:55 +0100, nicolas vigier a écrit :
</I>>>>><i> On Wed, 10 Nov 2010, Luca Berra wrote:
</I>>>>><i>
</I>>>>><i> > 2) Accountability. No idea in France, but here system administratros
</I>>>>><i> > need to be accounted (*).
</I>>>>><i>
</I>>>>><i> When someone runs "sudo su -" or something equivalent there is no
</I>>>>><i> accountability on what he did after that.
</I>>>><i>
</I>>>><i> Even more cunning, emacs or vim can run process ( except that vim has a
</I>>>><i> mode where it can prevent it with -Z, do not know for emacs ).
</I>>><i>
</I>>><i> it is better to use sudoedit for editing files, it will copy the
</I>>><i> original file to a temporary copy, revert to caller uid, let user edit
</I>>><i> the file, and move it into place afterwards.
</I>><i>
</I>><i>Unless the list of files you are allowed to edit is very limited, it is
</I>><i>very easy to open a root shell by editing a config file.
</I>not with sudoedit
>><i> another options is using noexec (sudo will preload a shlib overriding
</I>>><i> exec calls)
</I>><i>
</I>><i>But you have an editor running as root, and you can then edit any file.
</I>the idea is that the editor runs as unprivileged user
--
Luca Berra -- <A HREF="https://www.mageia.org/mailman/listinfo/mageia-sysadm">bluca at vodka.it</A>
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