#VU5553 Privilege escalation in Windows and Windows Server

Published: 2020-03-18 | Updated: 2020-06-02

Vulnerability identifier: #VU5553

Vulnerability risk: Medium

CVSSv3.1: 8.4 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:H/RL:O/RC:C]

CVE-ID: CVE-2015-1701


Exploitation vector: Local

Exploit availability: Yes

Vulnerable software:
Operating systems & Components / Operating system
Windows Server
Operating systems & Components / Operating system

Vendor: Microsoft

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

The weakness exists due to improper access control. A local attacker can create a specially crafted application, execute a callback in userspace and use data from the System token to execute arbitrary code on the system with root privileges.

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

Note: the vulnerability was being actively exploited.

Install update from vendor's website.

Vulnerable software versions

Windows: Vista, 7

Windows Server: 2008

External links

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?

Yes. This vulnerability is being exploited in the wild.

Latest bulletins with this vulnerability