Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openbsd | Openbsd | 6.6 |
Related Weaknesses (CWE)
References
- http://packetstormsecurity.com/files/155572/Qualys-Security-Advisory-OpenBSD-AutThird Party Advisory
- http://seclists.org/fulldisclosure/2019/Dec/14Third Party Advisory
- http://www.openwall.com/lists/oss-security/2019/12/04/5ExploitMailing ListThird Party Advisory
- https://seclists.org/bugtraq/2019/Dec/8ExploitMailing ListThird Party Advisory
- https://www.openbsd.org/errata66.htmlVendor Advisory
- https://www.openwall.com/lists/oss-security/2019/12/04/5ExploitMailing ListThird Party Advisory
- http://packetstormsecurity.com/files/155572/Qualys-Security-Advisory-OpenBSD-AutThird Party Advisory
- http://seclists.org/fulldisclosure/2019/Dec/14Third Party Advisory
- http://www.openwall.com/lists/oss-security/2019/12/04/5ExploitMailing ListThird Party Advisory
- https://seclists.org/bugtraq/2019/Dec/8ExploitMailing ListThird Party Advisory
- https://www.openbsd.org/errata66.htmlVendor Advisory
- https://www.openwall.com/lists/oss-security/2019/12/04/5ExploitMailing ListThird Party Advisory
FAQ
What is CVE-2019-19522?
CVE-2019-19522 is a vulnerability with a CVSS score of 7.8 (HIGH). 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 f...
How severe is CVE-2019-19522?
CVE-2019-19522 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-19522?
Check the references section above for vendor advisories and patch information. Affected products include: Openbsd Openbsd.