cve/2021/CVE-2021-43039.md

### [CVE-2021-43039](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-43039)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen)

### Description

An issue was discovered in Kaseya Unitrends Backup Appliance before 10.5.5. The Samba file sharing service allowed anonymous read/write access.

### POC

#### Reference
- https://helpdesk.kaseya.com/hc/en-gb/articles/4412762258961
- https://www.cyberonesecurity.com/blog/exploiting-kaseya-unitrends-backup-appliance-part-1
- https://www.cyberonesecurity.com/blog/exploiting-kaseya-unitrends-backup-appliance-part-2

#### Github
No PoCs found on GitHub currently.