Privilege escalation in Windows and Windows Server - CVE-2017-0298

 

Privilege escalation in Windows and Windows Server - CVE-2017-0298

Published: June 13, 2017


Vulnerability identifier: #VU7039
CSH Severity: Low
CVSS v4.0: 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:U/U:Clear
CVE-ID: CVE-2017-0298
CWE-ID: CWE-287
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: Microsoft
Affected software:
Windows
Windows Server

Detailed vulnerability description

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

The weakness exists due to improper authentication by DCOM object in Helppane.exe. A local attacker can run a specially crafted application after another user logged on to the same system via Terminal Services or Fast User Switching and execute arbitrary code with system privileges.

Successful exploitation of the vulnerability results in full system compromise.




How to mitigate CVE-2017-0298

Install update from vendor's website.

Sources