Auth bypass in Openbsd
CVE-2019-19519
In OpenBSD 6.6, local users can use the su -L option to achieve any login class (often excluding root) because there is a logic error in the main function in su/su.c.
Vulnerability class: Broken Authentication
EPSS: 0.004 (32.1th 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)
References
- cve@mitre.org (Exploit, Mailing List, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (x_refsource_MISC, Vendor Advisory)
- cve@mitre.org (Third Party Advisory, x_refsource_MISC)
- 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-2019-19519?
- CVE-2019-19519 is a high-severity vulnerability in Openbsd, classified under Improper Authentication. CVSS score: 7.8/10. Published 2019-12-05.
- How severe is CVE-2019-19519?
- High severity. CVSS v3 base score is 7.8 out of 10.