CVE-2018-15687
CVE-2018-15687 — systemd: chown_one() can dereference symlinks
A race condition in chown_one() of systemd allows an attacker to cause systemd to set arbitrary permissions on arbitrary files. Affected releases are systemd versions up to and including 239.
Published Updated Sources: cvelistV5, canonical
Triage
Is it exploited, how likely is exploitation, what does it touch, and how severe do the scoring sources call it.
Exploitation
Exploit code
public exploit, none observed
EPSS
1%
chance of exploitation in 30 days
CVSS base
7.8
HIGH
CISA SSVC assessment
Three decision points CISA publishes for the CVEs it assesses · SSVC 2.0.3. A stakeholder decision, not a severity score.
Exploitation
None
none · proof-of-concept · active
Automatable
No
can an attacker script all four kill-chain steps
Technical impact
Total
partial · total control of the vulnerable component
Affected scope
The catalog records vendors and products as separate lists, not pairs, so which product belongs to which vendor is not something this page can say.
Vendors (1)
Products (1)
Every base score collected
Sources score independently and disagree; each row says who scored it and under which version.
| Score | Version | Severity | Expl. | Impact | Source |
|---|---|---|---|---|---|
| 7.8 | CVSS 3.0 | HIGH | — | — | cvelistV5 |
Weakness & attack patterns
- CWE-362
Public exploit
Capability, not use: code existing is a different claim from anyone running it.
Indexed by
References
5 on the record
- security.gentoo.org/glsa/201810-10
vendor-advisory, x_refsource_GENTOO
- github.com/systemd/systemd/pull/10517/commits
x_refsource_MISC
- www.securityfocus.com/bid/105748
vdb-entry, x_refsource_BID
- usn.ubuntu.com/3816-1/
vendor-advisory, x_refsource_UBUNTU
- www.exploit-db.com/exploits/45715/
exploit, x_refsource_EXPLOIT-DB
Elsewhere on this site
Not in any source we poll
Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.
- No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
- No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
- No exploit packet captures, log samples, or incident case IDs supplied.