CVE-2019-19519

Published: Dec 5, 2019Modified: Nov 21, 2024

7.8

Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitability: 1.8 / Impact: 5.9

Source: NVD

Description

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.

Affected (1)

Products: Openbsd: Openbsd

Openbsd

1 product

Openbsd

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Openbsd Openbsd	Version 6.6

Related CWEs

CWE-287

Improper Authentication

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

References (14)

http://packetstormsecurity.com/files/155572/Qualys-Security-Advisory-OpenBSD-Authentication-Bypass-Privilege-Escalation.html

Source: cve@mitre.org

Third Party Advisory

http://seclists.org/fulldisclosure/2019/Dec/14

Source: cve@mitre.org

Third Party Advisory

http://www.openwall.com/lists/oss-security/2019/12/04/5

Source: cve@mitre.org

ExploitMailing ListThird Party Advisory

https://github.com/openbsd/src/blob/2dfc98f42e117c7605b52b5020b630d98601dc22/usr.bin/su/su.c#L210-L211

Source: cve@mitre.org

Third Party Advisory

https://seclists.org/bugtraq/2019/Dec/8

Source: cve@mitre.org

ExploitMailing ListThird Party Advisory

https://www.openbsd.org/errata66.html

Source: cve@mitre.org

Vendor Advisory

https://www.openwall.com/lists/oss-security/2019/12/04/5

Source: cve@mitre.org

ExploitMailing ListThird Party Advisory

http://packetstormsecurity.com/files/155572/Qualys-Security-Advisory-OpenBSD-Authentication-Bypass-Privilege-Escalation.html