### [CVE-2021-20125](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20125)
![](https://img.shields.io/static/v1?label=Product&message=Draytek%20VigorConnect&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=1.6.0-B3%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Unrestricted%20Upload%20of%20File%20with%20Dangerous%20Type&color=brightgreen)

### Description

An arbitrary file upload and directory traversal vulnerability exists in the file upload functionality of DownloadFileServlet in Draytek VigorConnect 1.6.0-B3. An unauthenticated attacker could leverage this vulnerability to upload files to any location on the target operating system with root privileges.

### POC

#### Reference
- https://www.tenable.com/security/research/tra-2021-42

#### Github
- https://github.com/20142995/nuclei-templates
- https://github.com/cyb3r-w0lf/nuclei-template-collection