Security restrictions bypass in Windows and Windows Server - CVE-2018-8222
Published: July 10, 2018 / Updated: July 10, 2018
Vulnerability identifier: #VU13790
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2018-8222
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Microsoft
Affected software:
Windows
Windows Server
Windows
Windows Server
Detailed vulnerability description
The vulnerability allows a local attacker to bypass security restrictions on the target system.
The vulnerability exists in Device Guard due to improper exposure of functions and processes user supplied code. A local attacker can inject code into a trusted PowerShell process, run it with the same trust level as the script and bypass the Device Guard Code Integrity policy on the local machine.
How to mitigate CVE-2018-8222
Install updates from vendor's website.