PT-2017-13: Elevation of Privilege in Microsoft Windows

(PT-2017-13) Positive Technologies Security Advisory
Elevation of Privilege in Microsoft Windows

Vulnerable software

Microsoft Windows
Version: Windows Server 2016, Windows Server 2012 R2, Windows Server 2012, Windows Server 2008 R2, Windows Server 2008, Windows 10, Windows 8.1, Windows 7

Severity level

Severity level: High
Impact: Privilege Escalation
Access Vector: Local

CVSS v3:
Base Score: 7.8
Vector: (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

CVE: CVE-2017-0263

Vulnerability description

The specialists of the Positive Research center have detected an Elevation of Privilege vulnerability in Microsoft Windows.

An elevation of privilege vulnerability exists in Windows when the Windows kernel-mode driver fails to properly handle objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. To exploit this vulnerability, an attacker would first have to log on to the system.

How to fix

Use vendor's advisory: https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0263

Advisory status

07.05.2017 - Vendor gets vulnerability details
09.05.2017 - Vendor releases fixed version and details
24.10.2017 - Public disclosure

Credits

The vulnerability was detected by Mikhail Tsvetkov, Positive Research Center (Positive Technologies Company)

References

http://en.securitylab.ru/lab/PT-2017-13
https://www.ptsecurity.com/ww-en/about/news/251465/

Reports on the vulnerabilities previously discovered by Positive Research:

https://www.ptsecurity.com
http://en.securitylab.ru/lab/

About Positive Technologies

Positive Technologies is a leading provider of vulnerability assessment, compliance management and threat analysis solutions to more than 1,000 global enterprise clients. Our solutions work seamlessly across your entire business: securing applications in development; assessing your network and application vulnerabilities; assuring compliance with regulatory requirements; and blocking real-time attacks. Our commitment to clients and research has earned Positive Technologies a reputation as one of the foremost authorities on SCADA, Banking, Telecom, Web Application and ERP security, and distinction as the #1 fastest growing Security and Vulnerability Management firm in 2012, as shown in an IDC report*. To learn more about Positive Technologies please visit www.ptsecurity.com

*Source: IDC Worldwide Security and Vulnerability Management 2013-2017 Forecast and 2012 Vendor Shares, doc #242465, August 2013. Based on year-over-year revenue growth in 2012 for vendors with revenues of $20M+