Local User Privilege Escalation in OpenBSD 6.6 via Logic Error in su Command
CVE-2019-19519

7.8HIGH

Key Information:

Vendor

OpenBSD
Status
OpenBSD
Vendor
CVE Published:
5 December 2019

What is CVE-2019-19519?

In OpenBSD 6.6, a logic error in the main function of the 'su' command allows local users to leverage the -L option for unauthorized access to any login class, bypassing intended restrictions. This can lead to privilege escalation risks, potentially disrupting system security.

References

https://www.openwall.com/lists/oss-security/2019/12/04/5
x_refsource_MISC
https://www.openbsd.org/errata66.html
x_refsource_MISC
https://github.com/openbsd/src/blob/2dfc98f42e117c7605b52...
x_refsource_MISC

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.
CVE-2019-19519 : Local User Privilege Escalation in OpenBSD 6.6 via Logic Error in su Command