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.
| Type | CWE ID | Description |
|---|---|---|
| text | N/A | n/a |
| Version | Base score | Base severity | Vector |
|---|
| CAPEC ID | Description |
|---|
| Event | Date |
|---|
| Hyperlink | Resource |
|---|---|
| http://lists.opensuse.org/opensuse-updates/2018-02/msg00109.html | vendor-advisory x_refsource_SUSE |
| http://www.openwall.com/lists/oss-security/2018/01/29/3 | mailing-list x_refsource_MLIST |
| https://www.exploit-db.com/exploits/43935/ | exploit x_refsource_EXPLOIT-DB |
| https://github.com/systemd/systemd/issues/7736 | x_refsource_MISC |
| http://packetstormsecurity.com/files/146184/systemd-Local-Privilege-Escalation.html | x_refsource_MISC |
| https://www.openwall.com/lists/oss-security/2018/01/29/4 | mailing-list x_refsource_MLIST |
| https://lists.debian.org/debian-lts-announce/2019/04/msg00022.html | mailing-list x_refsource_MLIST |
| https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E | mailing-list x_refsource_MLIST |
| https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E | mailing-list x_refsource_MLIST |
| Version | Base score | Base severity | Vector |
|---|
| CAPEC ID | Description |
|---|
| Event | Date |
|---|