High severity · published Oct 26, 2018
CVE-2018-15687
A race condition in chown_one() of systemd allows an attacker to cause systemd to set arbitrary permissions on arbitrary files
7.0
CVSS
1.1%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.1% · higher than 64% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SY
Systemd · Systemd Project
235 before 240 · source: NVD
UL
Ubuntu Linux · Canonical
16.04; 18.04; 18.10 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-15687
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-15687
Broken Link
http://www.securityfocus.com/bid/105748
Patch
https://github.com/systemd/systemd/pull/10517/commits
Third Party Advisory
https://security.gentoo.org/glsa/201810-10
Third Party Advisory
https://usn.ubuntu.com/3816-1/
Exploit
https://www.exploit-db.com/exploits/45715/
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