Bug#580629: gdm3 - allows unauthenticated users to change power configuration

[Josselin Mouette]

Le vendredi 07 mai 2010 à 23:42 +0200, Bastian Blank a écrit :
> On Fri, May 07, 2010 at 09:18:48PM +0200, Josselin Mouette wrote:
> > Le vendredi 07 mai 2010 à 12:08 +0200, Bastian Blank a écrit : 
> > > gdm3 allows unauthenticated users to change the power configuration,
> > > including automatic suspend.
> > > This is a DoS on any non-singleuser machine.
> > What do you mean by “unauthenticated users”? Do you mean it is possible
> > to change that configuration from the login screen?
> 
> Yes. The login screen allow access to gnome-power-manager properties.
> See /usr/share/gdm/autostart/LoginWindow/gnome-power-manager.desktop.

The power manager daemon is launched, but that doesn’t give you access
to the properties.

Could you explain exactly how you would exploit that?

Thanks,
-- 
 .''`.      Josselin Mouette
: :' :
`. `'  “If you behave this way because you are blackmailed by someone,
  `-    […] I will see what I can do for you.”  -- Jörg Schilling
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