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".
| Version | Score | Severity | Vector String |
|---|---|---|---|
| 3.0 | 4.5 | Medium | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L |
| Product | Vendor | Version |
|---|---|---|
| systemd | The systemd Project | n/a |