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Vulnerability of OpenBSD: privilege escalation via libcauth

Synthesis of the vulnerability 

An attacker can bypass restrictions via libcauth of OpenBSD, in order to escalate his privileges.
Impacted software: OpenBSD.
Severity of this computer vulnerability: 4/4.
Number of vulnerabilities in this bulletin: 3.
Creation date: 04/12/2019.
Revision date: 05/12/2019.
Références of this announce: CERTFR-2019-AVI-606, CVE-2019-19519, CVE-2019-19521, CVE-2019-19522, VIGILANCE-VUL-31060.

Description of the vulnerability 

An attacker can bypass restrictions via libcauth of OpenBSD, in order to escalat...
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This cybersecurity weakness impacts software or systems such as OpenBSD.

Our Vigil@nce team determined that the severity of this security vulnerability is critical.

The trust level is of type confirmed by the editor, with an origin of intranet client.

This bulletin is about 3 vulnerabilities.

A proof of concept or an attack tool is available, so your teams have to process this alert. An attacker with a technician ability can exploit this vulnerability bulletin.

Solutions for this threat 

Solutions for this vulnerability are not yet public.
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