vulnerability
Red Hat: CVE-2019-3842: CVE-2019-3842 systemd: Spoofing of XDG_SEAT allows for actions to be checked against "allow_active" instead of "allow_any" (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:M/Au:S/C:C/I:C/A:C) | 2019-04-09 | 2021-05-21 | 2025-01-30 |
Severity
7
CVSS
(AV:L/AC:M/Au:S/C:C/I:C/A:C)
Published
2019-04-09
Added
2021-05-21
Modified
2025-01-30
Description
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".
Solution(s)
redhat-upgrade-systemdredhat-upgrade-systemd-containerredhat-upgrade-systemd-container-debuginforedhat-upgrade-systemd-debuginforedhat-upgrade-systemd-debugsourceredhat-upgrade-systemd-develredhat-upgrade-systemd-journal-remoteredhat-upgrade-systemd-journal-remote-debuginforedhat-upgrade-systemd-libsredhat-upgrade-systemd-libs-debuginforedhat-upgrade-systemd-pamredhat-upgrade-systemd-pam-debuginforedhat-upgrade-systemd-testsredhat-upgrade-systemd-tests-debuginforedhat-upgrade-systemd-udevredhat-upgrade-systemd-udev-debuginfo
NEW
Explore Exposure Command
Confidently identify and prioritize exposures from endpoint to cloud with full attack surface visibility and threat-aware risk context.