Microsoft Windows JScript Security Feature CVE-2018-8417 Local Security Bypass Vulnerability

Description

Microsoft Windows is prone to a local security-bypass vulnerability. An attacker can exploit this issue to bypass certain security restrictions and perform unauthorized actions. This may aid in further attacks.

Technologies Affected

• Microsoft Windows 10 Version 1607 for 32-bit Systems
• Microsoft Windows 10 Version 1607 for x64-based Systems
• Microsoft Windows 10 Version 1709 for ARM64-based Systems
• Microsoft Windows 10 Version 1803 for 32-bit Systems
• Microsoft Windows 10 Version 1803 for ARM64-based Systems
• Microsoft Windows 10 Version 1803 for x64-based Systems
• Microsoft Windows 10 Version 1809 for 32-bit Systems
• Microsoft Windows 10 Version 1809 for ARM64-based Systems
• Microsoft Windows 10 Version 1809 for x64-based Systems
• Microsoft Windows 10 for 32-bit Systems
• Microsoft Windows 10 for x64-based Systems
• Microsoft Windows 10 version 1703 for 32-bit Systems
• Microsoft Windows 10 version 1703 for x64-based Systems
• Microsoft Windows 10 version 1709 for 32-bit Systems
• Microsoft Windows 10 version 1709 for x64-based Systems
• Microsoft Windows Server 1709
• Microsoft Windows Server 1803
• Microsoft Windows Server 2016
• Microsoft Windows Server 2019

Recommendations

Configure webservers to serve only specific, defined file types.
To exploit this vulnerability, an attacker requires local access to an affected computer. Grant local access for trusted and accountable users only.

Updates are available. Please see the references or vendor advisory for more information.