Vulnerability in Openbsd

CVE-2019-19522

OpenBSD 6.6, in a non-default configuration where S/Key or YubiKey authentication is enabled, allows local users to become root by leveraging membership in the auth group. This occurs because root's file can be written to /etc/skey or /var/db/yubikey, and need not be owned by root.

EPSS: 0.005 (38.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

  • Openbsd — versions 6.6
  • N/a — versions n/a

Weakness classification (CWE)

Public proof-of-concept exploits

References

  • cve@mitre.org (Exploit, Mailing List, Third Party Advisory, x_refsource_MISC)
  • cve@mitre.org (x_refsource_MISC, Vendor Advisory)
  • cve@mitre.org (mailing-list, x_refsource_MLIST, Exploit, Mailing List, Third Party Advisory)
  • cve@mitre.org (mailing-list, Exploit, x_refsource_BUGTRAQ, Mailing List, Third Party Advisory)
  • cve@mitre.org (Third Party Advisory, x_refsource_MISC)
  • cve@mitre.org (mailing-list, x_refsource_FULLDISC, Third Party Advisory)

Frequently asked questions

What is CVE-2019-19522?
CVE-2019-19522 is a high-severity vulnerability in Openbsd, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 7.8/10. Published 2019-12-05.
How severe is CVE-2019-19522?
High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2019-19522 known to be exploited?
3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.