CVE Vulnerabilities

CVE-2019-12795

Incorrect Default Permissions

Published: Jun 11, 2019 | Modified: Nov 07, 2023
CVSS 3.x
7.8
HIGH
Source:
NVD
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
4.6 MEDIUM
AV:L/AC:L/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
4.5 LOW
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
Ubuntu
MEDIUM

daemon/gvfsdaemon.c in gvfsd from GNOME gvfs before 1.38.3, 1.40.x before 1.40.2, and 1.41.x before 1.41.3 opened a private D-Bus server socket without configuring an authorization rule. A local attacker could connect to this server socket and issue D-Bus method calls. (Note that the server socket only accepts a single connection, so the attacker would have to discover the server and connect to the socket before its owner does.)

Weakness

During installation, installed file permissions are set to allow anyone to modify those files.

Affected Software

Name Vendor Start Version End Version
Gvfs Gnome * 1.38.3 (excluding)
Gvfs Gnome 1.40.0 (including) 1.40.2 (excluding)
Gvfs Gnome 1.41.0 (including) 1.41.3 (excluding)
Red Hat Enterprise Linux 8 RedHat accountsservice-0:0.6.50-7.el8 *
Red Hat Enterprise Linux 8 RedHat appstream-data-0:8-20190805.el8 *
Red Hat Enterprise Linux 8 RedHat baobab-0:3.28.0-2.el8 *
Red Hat Enterprise Linux 8 RedHat chrome-gnome-shell-0:10.1-6.el8 *
Red Hat Enterprise Linux 8 RedHat evince-0:3.28.4-3.el8 *
Red Hat Enterprise Linux 8 RedHat file-roller-0:3.28.1-2.el8 *
Red Hat Enterprise Linux 8 RedHat gdk-pixbuf2-0:2.36.12-5.el8 *
Red Hat Enterprise Linux 8 RedHat gdm-1:3.28.3-22.el8 *
Red Hat Enterprise Linux 8 RedHat gjs-0:1.56.2-3.el8 *
Red Hat Enterprise Linux 8 RedHat gnome-control-center-0:3.28.2-5.el8 *
Red Hat Enterprise Linux 8 RedHat gnome-desktop3-0:3.32.2-1.el8 *
Red Hat Enterprise Linux 8 RedHat gnome-remote-desktop-0:0.1.6-5.el8 *
Red Hat Enterprise Linux 8 RedHat gnome-settings-daemon-0:3.32.0-4.el8 *
Red Hat Enterprise Linux 8 RedHat gnome-shell-0:3.32.2-9.el8 *
Red Hat Enterprise Linux 8 RedHat gnome-shell-extensions-0:3.32.1-10.el8 *
Red Hat Enterprise Linux 8 RedHat gnome-software-0:3.30.6-2.el8 *
Red Hat Enterprise Linux 8 RedHat gnome-tweaks-0:3.28.1-6.el8 *
Red Hat Enterprise Linux 8 RedHat gsettings-desktop-schemas-0:3.32.0-3.el8 *
Red Hat Enterprise Linux 8 RedHat gtk3-0:3.22.30-4.el8 *
Red Hat Enterprise Linux 8 RedHat gvfs-0:1.36.2-6.el8 *
Red Hat Enterprise Linux 8 RedHat mozjs60-0:60.9.0-3.el8 *
Red Hat Enterprise Linux 8 RedHat mutter-0:3.32.2-10.el8 *
Red Hat Enterprise Linux 8 RedHat nautilus-0:3.28.1-10.el8 *
Red Hat Enterprise Linux 8 RedHat pango-0:1.42.4-6.el8 *
Red Hat Enterprise Linux 8 RedHat pidgin-0:2.13.0-5.el8 *
Red Hat Enterprise Linux 8 RedHat plymouth-0:0.9.3-15.el8 *
Red Hat Enterprise Linux 8 RedHat SDL-0:1.2.15-35.el8 *
Red Hat Enterprise Linux 8 RedHat wayland-protocols-0:1.17-1.el8 *
Red Hat Enterprise Linux 8 RedHat webkit2gtk3-0:2.24.3-1.el8 *
Red Hat Enterprise Linux 8 RedHat accountsservice-0:0.6.50-7.el8 *
Red Hat Enterprise Linux 8 RedHat appstream-data-0:8-20190805.el8 *
Red Hat Enterprise Linux 8 RedHat baobab-0:3.28.0-2.el8 *
Red Hat Enterprise Linux 8 RedHat chrome-gnome-shell-0:10.1-6.el8 *
Red Hat Enterprise Linux 8 RedHat evince-0:3.28.4-3.el8 *
Red Hat Enterprise Linux 8 RedHat file-roller-0:3.28.1-2.el8 *
Red Hat Enterprise Linux 8 RedHat gdk-pixbuf2-0:2.36.12-5.el8 *
Red Hat Enterprise Linux 8 RedHat gdm-1:3.28.3-22.el8 *
Red Hat Enterprise Linux 8 RedHat gjs-0:1.56.2-3.el8 *
Red Hat Enterprise Linux 8 RedHat gnome-control-center-0:3.28.2-5.el8 *
Red Hat Enterprise Linux 8 RedHat gnome-desktop3-0:3.32.2-1.el8 *
Red Hat Enterprise Linux 8 RedHat gnome-remote-desktop-0:0.1.6-5.el8 *
Red Hat Enterprise Linux 8 RedHat gnome-settings-daemon-0:3.32.0-4.el8 *
Red Hat Enterprise Linux 8 RedHat gnome-shell-0:3.32.2-9.el8 *
Red Hat Enterprise Linux 8 RedHat gnome-shell-extensions-0:3.32.1-10.el8 *
Red Hat Enterprise Linux 8 RedHat gnome-software-0:3.30.6-2.el8 *
Red Hat Enterprise Linux 8 RedHat gnome-tweaks-0:3.28.1-6.el8 *
Red Hat Enterprise Linux 8 RedHat gsettings-desktop-schemas-0:3.32.0-3.el8 *
Red Hat Enterprise Linux 8 RedHat gtk3-0:3.22.30-4.el8 *
Red Hat Enterprise Linux 8 RedHat gvfs-0:1.36.2-6.el8 *
Red Hat Enterprise Linux 8 RedHat mozjs60-0:60.9.0-3.el8 *
Red Hat Enterprise Linux 8 RedHat mutter-0:3.32.2-10.el8 *
Red Hat Enterprise Linux 8 RedHat nautilus-0:3.28.1-10.el8 *
Red Hat Enterprise Linux 8 RedHat pango-0:1.42.4-6.el8 *
Red Hat Enterprise Linux 8 RedHat pidgin-0:2.13.0-5.el8 *
Red Hat Enterprise Linux 8 RedHat plymouth-0:0.9.3-15.el8 *
Red Hat Enterprise Linux 8 RedHat SDL-0:1.2.15-35.el8 *
Red Hat Enterprise Linux 8 RedHat wayland-protocols-0:1.17-1.el8 *
Red Hat Enterprise Linux 8 RedHat webkit2gtk3-0:2.24.3-1.el8 *
Gvfs Ubuntu bionic *
Gvfs Ubuntu cosmic *
Gvfs Ubuntu devel *
Gvfs Ubuntu disco *
Gvfs Ubuntu esm-infra/bionic *
Gvfs Ubuntu esm-infra/xenial *
Gvfs Ubuntu trusty *
Gvfs Ubuntu upstream *
Gvfs Ubuntu xenial *

Potential Mitigations

  • Compartmentalize the system to have “safe” areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area.
  • Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.

References