Privilege escalation in Microsoft Windows



| Updated: 2017-01-19
Risk Critical
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2014-1807
CWE-ID CWE-264
Exploitation vector Local
Public exploit This vulnerability is being exploited in the wild.
Vulnerable software
 Windows
Operating systems & Components / Operating system

Windows Server
Operating systems & Components / Operating system

Vendor Microsoft

Security Bulletin

This security bulletin contains one critical risk vulnerability.

1) Privilege escalation

EUVDB-ID: #VU5139

Risk: Critical

CVSSv4.0: 8.5 [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:Red]

CVE-ID: CVE-2014-1807

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: Yes

Description

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

The weakness exists due to improper use of the ShellExecute API function. A local attacker can run a specially crafted application within the context of the Local System account and gain elevated privileges.

Successful exploitation of the vulnerability results in privilege escalation on the vulnerable system.

Note: the vulnerability was being actively exploited.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Windows: RT - 8.1

Windows Server: 2003 - 2012

CPE2.3 External links

https://technet.microsoft.com/en-us/library/security/ms14-027


Q & A

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, a fully functional exploit for this vulnerability is available.



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