### [CVE-2020-16939](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16939) ![](https://img.shields.io/static/v1?label=Product&message=Windows%2010%20Version%201507&color=blue) ![](https://img.shields.io/static/v1?label=Product&message=Windows%2010%20Version%201607&color=blue) ![](https://img.shields.io/static/v1?label=Product&message=Windows%2010%20Version%201709%20for%2032-bit%20Systems&color=blue) ![](https://img.shields.io/static/v1?label=Product&message=Windows%2010%20Version%201709&color=blue) ![](https://img.shields.io/static/v1?label=Product&message=Windows%2010%20Version%201803&color=blue) ![](https://img.shields.io/static/v1?label=Product&message=Windows%2010%20Version%201809&color=blue) ![](https://img.shields.io/static/v1?label=Product&message=Windows%2010%20Version%201903%20for%2032-bit%20Systems&color=blue) ![](https://img.shields.io/static/v1?label=Product&message=Windows%2010%20Version%201903%20for%20ARM64-based%20Systems&color=blue) ![](https://img.shields.io/static/v1?label=Product&message=Windows%2010%20Version%201903%20for%20x64-based%20Systems&color=blue) ![](https://img.shields.io/static/v1?label=Product&message=Windows%2010%20Version%201909&color=blue) ![](https://img.shields.io/static/v1?label=Product&message=Windows%2010%20Version%202004&color=blue) ![](https://img.shields.io/static/v1?label=Product&message=Windows%207%20Service%20Pack%201&color=blue) ![](https://img.shields.io/static/v1?label=Product&message=Windows%207&color=blue) ![](https://img.shields.io/static/v1?label=Product&message=Windows%208.1&color=blue) ![](https://img.shields.io/static/v1?label=Product&message=Windows%20Server%202008%20%20Service%20Pack%202&color=blue) ![](https://img.shields.io/static/v1?label=Product&message=Windows%20Server%202008%20R2%20Service%20Pack%201%20(Server%20Core%20installation)&color=blue) ![](https://img.shields.io/static/v1?label=Product&message=Windows%20Server%202008%20R2%20Service%20Pack%201&color=blue) ![](https://img.shields.io/static/v1?label=Product&message=Windows%20Server%202008%20Service%20Pack%202%20(Server%20Core%20installation)&color=blue) ![](https://img.shields.io/static/v1?label=Product&message=Windows%20Server%202008%20Service%20Pack%202&color=blue) ![](https://img.shields.io/static/v1?label=Product&message=Windows%20Server%202012%20(Server%20Core%20installation)&color=blue) ![](https://img.shields.io/static/v1?label=Product&message=Windows%20Server%202012%20R2%20(Server%20Core%20installation)&color=blue) ![](https://img.shields.io/static/v1?label=Product&message=Windows%20Server%202012%20R2&color=blue) ![](https://img.shields.io/static/v1?label=Product&message=Windows%20Server%202012&color=blue) ![](https://img.shields.io/static/v1?label=Product&message=Windows%20Server%202016%20(Server%20Core%20installation)&color=blue) ![](https://img.shields.io/static/v1?label=Product&message=Windows%20Server%202016&color=blue) ![](https://img.shields.io/static/v1?label=Product&message=Windows%20Server%202019%20(Server%20Core%20installation)&color=blue) ![](https://img.shields.io/static/v1?label=Product&message=Windows%20Server%202019&color=blue) ![](https://img.shields.io/static/v1?label=Product&message=Windows%20Server%20version%202004&color=blue) ![](https://img.shields.io/static/v1?label=Product&message=Windows%20Server%2C%20version%201903%20(Server%20Core%20installation)&color=blue) ![](https://img.shields.io/static/v1?label=Product&message=Windows%20Server%2C%20version%201909%20(Server%20Core%20installation)&color=blue) ![](https://img.shields.io/static/v1?label=Version&message=10.0.0%3C%20publication%20&color=brighgreen) ![](https://img.shields.io/static/v1?label=Version&message=6.0.0%3C%20publication%20&color=brighgreen) ![](https://img.shields.io/static/v1?label=Version&message=6.1.0%3C%20publication%20&color=brighgreen) ![](https://img.shields.io/static/v1?label=Version&message=6.2.0%3C%20publication%20&color=brighgreen) ![](https://img.shields.io/static/v1?label=Version&message=6.3.0%3C%20publication%20&color=brighgreen) ![](https://img.shields.io/static/v1?label=Vulnerability&message=Elevation%20of%20Privilege&color=brighgreen) ### Description

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.

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.

The security update addresses the vulnerability by correcting how Group Policy checks access.

### POC #### Reference No PoCs from references. #### Github - https://github.com/ARPSyndicate/cvemon - https://github.com/XTeam-Wing/RedTeaming2020 - https://github.com/alphaSeclab/sec-daily-2020 - https://github.com/developer3000S/PoC-in-GitHub - https://github.com/hectorgie/PoC-in-GitHub - https://github.com/nomi-sec/PoC-in-GitHub - https://github.com/rogue-kdc/CVE-2020-16939 - https://github.com/soosmile/POC