On Mon, 13 Jan 2003, Matthieu Herrb wrote:

> -rwsr-xr-x  1 root  wheel  1740879 Sep 30 22:36 /usr/X11R6/bin/XFree86
>
> To fix the file modes run the following commands (as root):
>
> chown root /usr/X11R6/bin/XFree86
> chmod 4755 /usr/X11R6/bin/XFree86
>
> Otherwise you can use xdm (or gdm or kdm from Gnome/KDE) to start the
> X server as root during boot for you. This is the prefered solution if
> you don't trust the X server enough to have it installed setuid.

More complete than what I wrote :)

(on my Debian 3.0 XFree86 has the mode bits 4711 -- there's no need for
anybody to read the binary and it makes harder, in principle, for Evil
Hackers to look for holes in it if they can't read it)

I still think it would be great if the X server gave an error message
along the above lines -- it would even know whether the chown or chmod
command could be left out (if either the owner or the suid bit was already
correct).

 -Peter

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