Описание
systemd-tmpfiles in systemd before 237 attempts to support ownership/permission changes on hardlinked files even if the fs.protected_hardlinks sysctl is turned off, which allows local users to bypass intended access restrictions via vectors involving a hard link to a file for which the user lacks write access, as demonstrated by changing the ownership of the /etc/passwd file.
| Релиз | Статус | Примечание |
|---|---|---|
| artful | ignored | |
| devel | ignored | |
| esm-infra-legacy/trusty | ignored | |
| esm-infra/xenial | ignored | |
| precise/esm | DNE | |
| trusty | ignored | |
| trusty/esm | ignored | |
| upstream | needs-triage | |
| xenial | ignored |
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Ссылки на источники
4.6 Medium
CVSS2
7.8 High
CVSS3
Связанные уязвимости
systemd-tmpfiles in systemd before 237 attempts to support ownership/permission changes on hardlinked files even if the fs.protected_hardlinks sysctl is turned off, which allows local users to bypass intended access restrictions via vectors involving a hard link to a file for which the user lacks write access, as demonstrated by changing the ownership of the /etc/passwd file.
systemd-tmpfiles in systemd before 237 attempts to support ownership/permission changes on hardlinked files even if the fs.protected_hardlinks sysctl is turned off, which allows local users to bypass intended access restrictions via vectors involving a hard link to a file for which the user lacks write access, as demonstrated by changing the ownership of the /etc/passwd file.
systemd-tmpfiles in systemd before 237 attempts to support ownership/p ...
4.6 Medium
CVSS2
7.8 High
CVSS3