CVE-2020-16939: Microsoft Windows Group Policy Client Service Link Resolution Privilege Escalation Vulnerability
First published: Fri Oct 16 2020(Updated: )
<p>An elevation of privilege vulnerability exists when Group Policy improperly checks access. An attacker who successfully exploited this vulnerability could run processes in an elevated context.</p> <p>To exploit the vulnerability, an attacker would first have to log on to the system, and then run a specially crafted application to take control over the affected system.</p> <p>The security update addresses the vulnerability by correcting how Group Policy checks access.</p>
Credit: secure@microsoft.com secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft Windows 10 | ||
| Microsoft Windows 10 | =1607 | |
| Microsoft Windows 10 | =1709 | |
| Microsoft Windows 10 | =1803 | |
| Microsoft Windows 10 | =1809 | |
| Microsoft Windows 10 | =1903 | |
| Microsoft Windows 10 | =1909 | |
| Microsoft Windows 10 | =2004 | |
| Microsoft Windows 7 | =sp1 | |
| Microsoft Windows 8.1 | ||
| Microsoft Windows RT 8.1 | ||
| Microsoft Windows Server 2008 | =sp2 | |
| Microsoft Windows Server 2008 | =r2-sp1 | |
| Microsoft Windows Server 2012 | ||
| Microsoft Windows Server 2012 | =r2 | |
| Microsoft Windows Server 2016 | ||
| Microsoft Windows Server 2016 | =1903 | |
| Microsoft Windows Server 2016 | =1909 | |
| Microsoft Windows Server 2016 | =2004 | |
| Microsoft Windows Server 2019 | ||
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- agent/type
- agent/first-publish-date
- agent/author
- agent/references
- agent/remedy
- agent/title
- agent/severity
- agent/weakness
- agent/description
- agent/softwarecombine
- collector/zdi-advisory
- source/ZDI
- alias/ZDI-20-1254
- alias/ZDI-CAN-11622
- alias/CVE-2020-16939
- agent/software-canonical-lookup
- agent/event
- collector/nvd-index
- agent/software-canonical-lookup-request
- collector/nvd-api
- source/NVD
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/tags
- agent/trending
- vendor/microsoft
- canonical/microsoft windows
- canonical/microsoft windows 10
- version/microsoft windows 10/1607
- version/microsoft windows 10/1709
- version/microsoft windows 10/1803
- version/microsoft windows 10/1809
- version/microsoft windows 10/1903
- version/microsoft windows 10/1909
- version/microsoft windows 10/2004
- canonical/microsoft windows 7
- version/microsoft windows 7/sp1
- canonical/microsoft windows 8.1
- canonical/microsoft windows rt 8.1
- canonical/microsoft windows server 2008
- version/microsoft windows server 2008/sp2
- version/microsoft windows server 2008/r2-sp1
- canonical/microsoft windows server 2012
- version/microsoft windows server 2012/r2
- canonical/microsoft windows server 2016
- version/microsoft windows server 2016/1903
- version/microsoft windows server 2016/1909
- version/microsoft windows server 2016/2004
- canonical/microsoft windows server 2019