High severity7.8NVD Advisory· Published Dec 5, 2019· Updated Jun 17, 2026
CVE-2019-19522
CVE-2019-19522
Description
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.
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Affected products
3- OpenBSD/OpenBSDdescription
Patches
Vulnerability mechanics
References
6- www.openwall.com/lists/oss-security/2019/12/04/5nvdExploitMailing ListThird Party Advisory
- seclists.org/bugtraq/2019/Dec/8nvdExploitMailing ListThird Party Advisory
- www.openwall.com/lists/oss-security/2019/12/04/5nvdExploitMailing ListThird Party Advisory
- packetstormsecurity.com/files/155572/Qualys-Security-Advisory-OpenBSD-Authentication-Bypass-Privilege-Escalation.htmlnvdThird Party Advisory
- seclists.org/fulldisclosure/2019/Dec/14nvdThird Party Advisory
- www.openbsd.org/errata66.htmlnvdVendor Advisory
News mentions
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