Описание
[REJECTED] A flaw was found in systemd-tmpfiles. When processing a tmpfiles.d configuration entry that writes to a file, systemd-tmpfiles can follow a symbolic link placed by an unprivileged local user, and an existing safety check does not detect this specific case because it always treats transitions away from the root user as safe. On systems where a tmpfiles.d configuration targets a path an unprivileged user can influence, this could allow that user to redirect a privileged systemd-tmpfiles write to a file of their choosing, though the content written remains determined by the existing configuration rather than by the unprivileged user. The highest threat from this vulnerability is to integrity.
Отчет
This CVE has been marked as rejected by the assigning CNA.
Меры по смягчению последствий
Restrict or audit any custom tmpfiles.d configuration entries (e.g. authored via configuration-management tooling) that use the 'w' item type against paths under /run/user/*, per-user home directories, or other locations where an unprivileged user can influence path resolution, until an upstream fix is available.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 10 | systemd | Not affected | ||
| Red Hat Enterprise Linux 7 | systemd | Not affected | ||
| Red Hat Enterprise Linux 8 | systemd | Not affected | ||
| Red Hat Enterprise Linux 9 | systemd | Not affected | ||
| Red Hat Hardened Images | systemd | Not affected | ||
| Red Hat OpenShift Container Platform 4 | systemd | Not affected |
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Дополнительная информация
0 Low
CVSS3
Связанные уязвимости
Rejected reason: The reported issue is invalid, as it requires root privileges to reproduce, and it is out of scope of the threat model of the affected component.
A flaw was found in systemd-tmpfiles. When processing a tmpfiles.d configuration entry that writes to a file, systemd-tmpfiles can follow a symbolic link placed by an unprivileged local user, and an existing safety check does not detect this specific case because it always treats transitions away from the root user as safe. On systems where a tmpfiles.d configuration targets a path an unprivileged user can influence, this could allow that user to redirect a privileged systemd-tmpfiles write to a file of their choosing, though the content written remains determined by the existing configuration rather than by the unprivileged user. The highest threat from this vulnerability is to integrity.
0 Low
CVSS3