Privilege escalation in Microsoft Windows and Windows Server - CVE-2014-4077

Vulnerability identifier: #VU5184

CSH Severity: Critical

CVSS v4: 7.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2014-4077

CWE-ID: CWE-264

Exploitation vector: Remote access

Exploit availability: The vulnerability is being exploited in the wild

The vulnerability allows a remote authenticated attacker to obtain elevated privileges on the target system.

The weakness exists due to improper access control in Microsoft implementation of Input Method Editor (IME) for Japanese language. A remote attacker can create a specially crafted file designed to invoke a vulnerable sandboxed application, trick the victim into opening it, gain elevated privileges and execute arbitrary code with privileges of the current user.

Successful exploitation of the vulnerability may result in arbitrary code execution on the vulnerable system.

Note: the vulnerability was being actively exploited.

Microsoft Windows
Windows Server

Install update from vendor's website.

• https://technet.microsoft.com/en-us/library/security/ms14-078

• Privilege escalation in Microsoft Windows
• Vulnerability in IME (Japanese) Could Allow Elevation of Privilege