Vulnerability identifier: #VU975
Vulnerability risk: Medium
CVSSv4.0: 7.1 [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:P/U:Green]
CVE-ID:
CWE-ID:
CWE-119
Exploitation vector: Local
Exploit availability: Yes
Vulnerable software:
Microsoft Office
Client/Desktop applications /
Office applications
Word Viewer
Client/Desktop applications /
Office applications
Windows
Operating systems & Components /
Operating system
Windows Server
Operating systems & Components /
Operating system
Microsoft Lync
Client/Desktop applications /
Messaging software
Lync Attendee
Client/Desktop applications /
Messaging software
Microsoft Live Meeting
Client/Desktop applications /
Messaging software
Vendor: Microsoft
Description
The vulnerability allows a local attacker to gain elevated privileges on the target system.
The weakness exists due to boundary error in the Microsoft Windows kernel-mode driver (Win32k). By running a malicious program on the affected system attackers can execute arbitrary code with SYSTEM privileges.
Successful exploitation of the vulnerability may result in a complete system compromise.
Mitigation
Install update from vendor's website.
Vulnerable software versions
Microsoft Office: 2010
Windows: Vista, 7, 8 - 8.1 RT, 10
Windows Server: 2008 R2 - 2008
Word Viewer: 2007
Microsoft Lync: 2010, 2013
Lync Attendee: 2010
Microsoft Live Meeting: 2007 Console
External links
http://technet.microsoft.com/en-us/library/security/MS16-120
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.