X2Go Bug report logs - #287
Linux Mint desktops configured too insecurely for multi-user mode

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Package: x2goserver; Maintainer for x2goserver is X2Go Developers <x2go-dev@lists.x2go.org>; Source for x2goserver is src:x2goserver.

Reported by: David Fuhrmann <fuhrmann_mail@web.de>

Date: Wed, 7 Aug 2013 05:48:02 UTC

Severity: critical

Tags: confirmed, moreinfo, wontfix

Found in version 4.0.1.6

Done: Mike Gabriel <mike.gabriel@das-netzwerkteam.de>

Bug is archived. No further changes may be made.

Full log

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Subject: x2goserver allows to connect to ALL X server sessions by default
From: "Fred Her." <x2go@edhil.net>
To: 287@bugs.x2go.org
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[Message part 1 (text/plain, inline)]
Actually, this seems not an x2go issue, but a linux mint issue : by
default, there is a "xhost +" command launched at session startup for all
users.

If you type "xhost - ", then you should see the normal behavior again :
userB will get a "no desktop found" message if he try to connect to the x2go
host.

So, the workaround is to remove the "xhost +" command in the Control Panel >
Startup Applications for each user,

or completely remove the /etc/xdg/autostart/mint-xhost-plus.desktop
(but this could come back if the package ubuntu-system-adjustments is
updated)

or change this file to:

[Desktop Entry]
Encoding=UTF-8
Version=1.0
Name=Xhost +
Exec=xhost +
Terminal=false
Type=Application
StartupNotify=false
Terminal=false
X-MATE-Autostart-enabled=false
Hidden=true

note to x2go packages maintainer:
Maybe this should be an option to check/disable when the x2goserver package
is installed?

Or maybe a warning should be issued if "xhost" is set to + when a user
connect?

[Message part 2 (text/html, inline)]

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X2Go Developers <owner@bugs.x2go.org>. Last modified: Thu Nov 21 15:21:27 2024; Machine Name: ymir.das-netzwerkteam.de

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