Privilege escalation in Microsoft Windows

Published: 2014-10-14 00:00:00 | Updated: 2017-03-10
Severity Medium
Patch available YES
Number of vulnerabilities 1
CVE ID CVE-2014-4113
CVSSv3 8.2 [CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:F/RL:O/RC:C]
CWE ID CWE-119
Exploitation vector Local
Public exploit This vulnerability is being exploited in the wild.
Vulnerable software Windows Server
Windows
Vulnerable software versions Windows Server 2003
Windows Server 2008 R2
Windows Server 2008
Windows Server 2012 R2
Windows Server 2012
Windows RT 8.1
Windows RT
Windows 8

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Vendor URL Microsoft

Security Advisory

1) Privilege escalation

Description

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

The weakness exists due to improper handling of objects in memory by kernel-mode driver (win32k.sys). A local attacker can run a specially crafted application to gain elevated privileges and take complete control of the system.

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

Note: the vulnerability was being actively exploited.

Remediation

Install update from vendor's website.

External links

https://technet.microsoft.com/en-us/library/security/ms14-058

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