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Vulnerability of Windows: privilege escalation via cng.sys

Synthesis of the vulnerability 

An attacker can bypass restrictions via cng.sys of Windows, in order to escalate his privileges.
Vulnerable products: Windows 10, Windows 2008 R0, Windows 2008 R2, Windows 2012, Windows 2016, Windows 2019, Windows 7, Windows 8, Windows RT.
Severity of this weakness: 2/4.
Creation date: 02/11/2020.
Références of this bulletin: CVE-2020-17087, PROJ-ZERO-2104, VIGILANCE-VUL-33750.

Description of the vulnerability 

An attacker can bypass restrictions via cng.sys of Windows, in order to escalate...
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This computer weakness bulletin impacts software or systems such as Windows 10, Windows 2008 R0, Windows 2008 R2, Windows 2012, Windows 2016, Windows 2019, Windows 7, Windows 8, Windows RT.

Our Vigil@nce team determined that the severity of this computer threat announce is medium.

The trust level is of type confirmed by the editor, with an origin of user shell.

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 threat announce.

Solutions for this threat 

Solutions, fixes, patches and workarounds for this vulnerability are not yet public.
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