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Re: [RFC] disabled root account / distinct group for users with administrative privileges

On Wed, 20 Oct 2010, Vincent Danjean <vdanjean.ml@free.fr> wrote:
> > How about the "root" group?
> This would hurt systems where umask is 002 (or 007) by default (the root
> group is the primary group of the root user with nobody else in it)

find / -gid 0 -perm /20 \! -type l

The above find command will discover some of the cases where access to the 
root group will give direct access to interesting things.  From a quick run on 
a Squeeze system I noticed that with GID==0 you can apparently write directly 
to all USB devices (/dev/bus/usb/*/* is writable).

However it would be nice if GID==0 wouldn't actually cause any problems and 
it's good that GID==0 gets less write access to a Debian system than last time 
I checked.  There are too many people who write daemons that call setuid() 
before calling setgid() to drop privileges...

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