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.
References
Link | Resource |
---|---|
http://packetstormsecurity.com/files/155572/Qualys-Security-Advisory-OpenBSD-Authentication-Bypass-Privilege-Escalation.html | Third Party Advisory |
http://seclists.org/fulldisclosure/2019/Dec/14 | Third Party Advisory |
http://www.openwall.com/lists/oss-security/2019/12/04/5 | Exploit Mailing List Third Party Advisory |
https://seclists.org/bugtraq/2019/Dec/8 | Exploit Mailing List Third Party Advisory |
https://www.openbsd.org/errata66.html | Vendor Advisory |
https://www.openwall.com/lists/oss-security/2019/12/04/5 | Exploit Mailing List Third Party Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: mitre
Published: 2019-12-04T23:33:05
Updated: 2019-12-06T21:06:08
Reserved: 2019-12-03T00:00:00
Link: CVE-2019-19522
JSON object: View
NVD Information
Status : Analyzed
Published: 2019-12-05T00:15:11.497
Modified: 2020-08-24T17:37:01.140
Link: CVE-2019-19522
JSON object: View
Redhat Information
No data.
CWE