cve/2021/CVE-2021-45891.md

### [CVE-2021-45891](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-45891)
![](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 Softwarebuero Zauner ARC 4.2.0.4., that allows attackers to escalate privileges within the application, since all permission checks are done client-side, not server-side.

### POC

#### Reference
- https://syss.de
- https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2021-063.txt

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