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.

• CWE-287

• http://packetstormsecurity.com/files/155572/Qualys-Security-Advisory-OpenBSD-Authentication-Bypass-Privilege-Escalation.htmlThird Party Advisory
• http://seclists.org/fulldisclosure/2019/Dec/14Third Party Advisory
• http://www.openwall.com/lists/oss-security/2019/12/04/5Exploit, Mailing List, Third Party Advisory
• https://github.com/openbsd/src/blob/2dfc98f42e117c7605b52b5020b630d98601dc22/usr.bin/su/su.c#L210-L211Third Party Advisory
• https://seclists.org/bugtraq/2019/Dec/8Exploit, Mailing List, Third Party Advisory
• https://www.openbsd.org/errata66.htmlVendor Advisory
• https://www.openwall.com/lists/oss-security/2019/12/04/5Exploit, Mailing List, Third Party Advisory
• http://packetstormsecurity.com/files/155572/Qualys-Security-Advisory-OpenBSD-Authentication-Bypass-Privilege-Escalation.htmlThird Party Advisory
• http://seclists.org/fulldisclosure/2019/Dec/14Third Party Advisory
• http://www.openwall.com/lists/oss-security/2019/12/04/5Exploit, Mailing List, Third Party Advisory
• https://github.com/openbsd/src/blob/2dfc98f42e117c7605b52b5020b630d98601dc22/usr.bin/su/su.c#L210-L211Third Party Advisory
• https://seclists.org/bugtraq/2019/Dec/8Exploit, Mailing List, Third Party Advisory
• https://www.openbsd.org/errata66.htmlVendor Advisory
• https://www.openwall.com/lists/oss-security/2019/12/04/5Exploit, Mailing List, Third Party Advisory

Published

Dec 5, 2019

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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• CVE-2019-19515Ayision Ays-WR01 v28K.RPT.20161224 devices allow stored XSS …6.1
• CVE-2019-19516Intelbras WRN 150 1.0.18 devices allow CSRF via GO=system_pa…6.5
• CVE-2019-19517Intelbras RF1200 1.1.3 devices allow CSRF to bypass the logi…8.8
• CVE-2019-19518CA Automic Sysload 5.6.0 through 6.1.2 contains a vulnerabil…9.8
• CVE-2019-1952A vulnerability in the CLI of Cisco Enterprise NFV Infrastru…6.7
• CVE-2019-19520xlock in OpenBSD 6.6 allows local users to gain the privileg…7.8
• CVE-2019-19521libc in OpenBSD 6.6 allows authentication bypass via the -sc…9.8
• CVE-2019-19522OpenBSD 6.6, in a non-default configuration where S/Key or Y…7.8
• CVE-2019-19523In the Linux kernel before 5.3.7, there is a use-after-free …4.6
• CVE-2019-19524In the Linux kernel before 5.3.12, there is a use-after-free…4.6