CVE-2017-18078
- State
- Published
- Severity
- Not scored
- Published
- Jan 29, 2018
- Updated
- Aug 5, 2024
- Reserved
- Jan 28, 2018
Description
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.
Scores
The record has no CVSS score.
Weaknesses
The record names no weakness.
Affected Products
| Product | Versions |
|---|---|
n/an/a |
|
References
- openSUSE-SU-2018:0560vendor-advisory
- [oss-security] 20180129 CVE-2018-18078: systemd-tmpfiles root privilege escalation with fs.protected_hardlinks=0mailing-list
- 43935exploit
- https://github.com/systemd/systemd/issues/7736
- http://packetstormsecurity.com/files/146184/systemd-Local-Privilege-Escalation.html
- [oss-security] 20180129 Re: CVE-2017-18078: systemd-tmpfiles root privilegemailing-list
- [debian-lts-announce] 20190424 [SECURITY] [DLA 1762-1] systemd security updatemailing-list
- [bookkeeper-issues] 20210628 [GitHub] [bookkeeper] padma81 opened a new issue #2746: Security Vulnerabilities in CentOS 7 image, Upgrade image to CentOS 8mailing-list
- [bookkeeper-issues] 20210629 [GitHub] [bookkeeper] padma81 opened a new issue #2746: Security Vulnerabilities in CentOS 7 image, Upgrade image to CentOS 8mailing-list
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