VulnerabilityModified
CVE-2021-40084
For example, it allows command execution via a crafted GECOS field whereas systemd-sysusers (a program with the same specification) does not do that.
CRITICAL 9.8EPSS 2.71%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.71%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
opensysusers through 0.6 does not safely use eval on files in sysusers.d that may contain shell metacharacters. For example, it allows command execution via a crafted GECOS field whereas systemd-sysusers (a program with the same specification) does not do that.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.71% probability · 85th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-94
- Affected
- artixlinux/opensysusers
- Source
- cve@mitre.org
References
- https://bugs.debian.org/992058Exploit, Mailing List, Third Party Advisory
- https://github.com/artix-linux/opensysusers/releasesRelease Notes, Third Party Advisory
- https://bugs.debian.org/992058Exploit, Mailing List, Third Party Advisory
- https://github.com/artix-linux/opensysusers/releasesRelease Notes, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.