CVE-2019-3842CWE-285

In systemd before v242-rc4, it was discovered that pam_systemd does not properly sanitize the environment before using the XDG_SEAT variable

Medium · published April 9, 2019

CVSS v3.0
4.5
EPSS
1%
Percentile
68.1
In the wild
Unconfirmed
What it is

In systemd before v242-rc4, it was discovered that pam_systemd does not properly sanitize the environment before using the XDG_SEAT variable. It is possible for an attacker, in some particular configurations, to set a XDG_SEAT environment variable which allows for commands to be checked against polkit policies using the "allow_active" element rather than "allow_any".

The record
Technical detail
CVSS v3.0
4.5 · MEDIUM
Vector
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.01207 · 68.1th percentile
Weakness
CWE-285 · Improper Authorization
Published
2019-04-09T20:25Z
EPSS history
Timeline
  • 09 APR 20:25Z
    In systemd before v242-rc4, it was discovered that pam_systemd does not properly sanitize the environment before using the XDG_SEAT variable
    cvelistv5