CVE-2018-16888

medium
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Description

It was discovered systemd does not correctly check the content of PIDFile files before using it to kill processes. When a service is run from an unprivileged user (e.g. User field set in the service file), a local attacker who is able to write to the PIDFile of the mentioned service may use this flaw to trick systemd into killing other services and/or privileged processes. Versions before v237 are vulnerable.

References

https://access.redhat.com/errata/RHSA-2019:2091

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16888

https://lists.apache.org/thread.html/[email protected]%3Cuser.cassandra.apache.org%3E

https://security.netapp.com/advisory/ntap-20190307-0007/

Details

Source: MITRE

Published: 2019-01-14

Updated: 2019-10-03

Type: CWE-20

Risk Information

CVSS v2

Base Score: 1.9

Vector: AV:L/AC:M/Au:N/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 3.4

Severity: LOW

CVSS v3

Base Score: 4.7

Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 1

Severity: MEDIUM

Tenable Plugins

View all (12 total)

IDNameProductFamilySeverity
149869Amazon Linux 2 : systemd (ALAS-2021-1643) (deprecated)NessusAmazon Linux Local Security Checks
critical
135613EulerOS Virtualization 3.0.2.2 : systemd (EulerOS-SA-2020-1451)NessusHuawei Local Security Checks
high
134505EulerOS Virtualization for ARM 64 3.0.2.0 : systemd (EulerOS-SA-2020-1216)NessusHuawei Local Security Checks
high
133523Ubuntu 16.04 LTS / 18.04 LTS / 19.10 : systemd vulnerabilities (USN-4269-1)NessusUbuntu Local Security Checks
high
132460NewStart CGSL CORE 5.05 / MAIN 5.05 : systemd Multiple Vulnerabilities (NS-SA-2019-0242)NessusNewStart CGSL Local Security Checks
high
132206EulerOS 2.0 SP3 : systemd (EulerOS-SA-2019-2671)NessusHuawei Local Security Checks
medium
131856EulerOS 2.0 SP2 : systemd (EulerOS-SA-2019-2364)NessusHuawei Local Security Checks
high
130694EulerOS 2.0 SP5 : systemd (EulerOS-SA-2019-2232)NessusHuawei Local Security Checks
high
129929NewStart CGSL CORE 5.04 / MAIN 5.04 : systemd Multiple Vulnerabilities (NS-SA-2019-0196)NessusNewStart CGSL Local Security Checks
high
128350CentOS 7 : systemd (CESA-2019:2091)NessusCentOS Local Security Checks
high
128265Scientific Linux Security Update : systemd on SL7.x x86_64 (20190806)NessusScientific Linux Local Security Checks
high
127669RHEL 7 : systemd (RHSA-2019:2091)NessusRed Hat Local Security Checks
high