Date: Thu, 11 Jul 2019 09:33:26 -0400 From: "Perry E. Metzger" <perry@...rmont.com> To: Malte Kraus <malte.kraus@...e.com> Cc: oss-security@...ts.openwall.com Subject: Re: Privileged File Access from Desktop Applications On Thu, 11 Jul 2019 07:51:17 +0000 Malte Kraus <malte.kraus@...e.com> wrote: > Hi Perry, > > On Tue, 2019-07-09 at 11:30 -0400, Perry E. Metzger wrote: > > Can you explain (or point to) a description of why this is a > > problem? > I'm not sure what exactly breaks, just that it does, see e.g.  >  . Since we're talking about root it's not a matter of > technical impossibility, but a decision not to write the code to > make it work. > > From a security perspective that seems like a great improvement. > Even if it should be the case that some programs don't follow best > practices re "least privileges", at least it's not the whole > application running as root. > > 1: > https://wiki.archlinux.org/index.php/Running_GUI_applications_as_root#Wayland > 2: > https://wiki.debian.org/Wayland#I.27m_accustomed_to_running_various_programs_.28e.g._synaptic.29_as_root_in_my_X_session.__How_will_this_work_under_Wayland.3F > 3: > https://fedoraproject.org/wiki/How_to_debug_Wayland_problems#Graphical_applications_can.27t_be_run_as_root_from_terminal > So these links seem to say that things have been structured so you *can't* run GUI apps as root, not that there is a special or unusual security problem in Wayland if you run an application as root; if you logged in as root, you could run GUI applications as root. That's rather different from the original statement. Am I misunderstanding? Perry -- Perry E. Metzger perry@...rmont.com
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