Login Request a demo
High severity · published Dec 5, 2019
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
7.8
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 34% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
Openbsd · Openbsd
6.6 · source: NVD
Affected product
OP
Openbsd
Openbsd
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-19519
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-19519
Third Party Advisory
http://packetstormsecurity.com/files/155572/Qualys-Security-Advisory-OpenBSD-Authentication-Bypass-Privilege-Escalation.html
Third Party Advisory
http://seclists.org/fulldisclosure/2019/Dec/14
Exploit
http://www.openwall.com/lists/oss-security/2019/12/04/5
Third Party Advisory
https://github.com/openbsd/src/blob/2dfc98f42e117c7605b52b5020b630d98601dc22/usr.bin/su/su.c#L210-L211
Exploit
https://seclists.org/bugtraq/2019/Dec/8
Vendor Advisory
https://www.openbsd.org/errata66.html
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