#VU5542 Improper validation of array index in Windows and Windows Server - CVE-2010-2743
Published: January 31, 2017 / Updated: February 3, 2017
Vulnerability identifier: #VU5542
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Green
CVE-ID: CVE-2010-2743
CWE-ID: CWE-129
Exploitation vector: Local access
Exploit availability:
Public exploit is available
Vulnerable software:
Windows
Windows Server
Windows
Windows Server
Software vendor:
Microsoft
Microsoft
Description
The vulnerability allows a local user to execute arbitrary code with elevated privileges.
The vulnerability exists due to an error in Win32k.sys driver when handling keyboard layouts as the Windows kernel fails to validate that an array index is within the bounds of the array. A local user can load a specially crafted keyboard layout and execute arbitrary code on the target system with privileges of SYSTEM account.
Successful exploitation of this vulnerability may allow an attacker to escalate privileges on vulnerable system.
Note: this vulnerability is being actively exploited by Stuxnet.Remediation
Install updates from vendor's website.