CVE-2021-40084
Last modified
CVE-2021-40084 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 2.71% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Artixlinux | Opensysusers | <= 0.6 |
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
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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