Input validation error in Microsoft products - CVE-2018-8256
Published: November 13, 2018
Vulnerability identifier: #VU15866
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2018-8256
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Microsoft
Affected software:
Windows
Windows Server
PowerShell Core
Windows
Windows Server
PowerShell Core
Detailed vulnerability description
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to insufficient validation of user-supplied input within PowerShell files. A remote attacker can create a specially crafted PowerShell file, trick the victim into opening it and execute arbitrary code on the target system with privileges of the current user.
How to mitigate CVE-2018-8256
Install updates from vendor's website.