CVEs-PoC/2021/CVE-2021-21879.md

### [CVE-2021-21879](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21879)
![](https://img.shields.io/static/v1?label=Product&message=Lantronix&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=Lantronix%20PremierWave%202050%208.9.0.0R4%20(in%20QEMU)%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-22%3A%20Improper%20Limitation%20of%20a%20Pathname%20to%20a%20Restricted%20Directory%20('Path%20Traversal')&color=brightgreen)

### Description

A directory traversal vulnerability exists in the Web Manager File Upload functionality of Lantronix PremierWave 2050 8.9.0.0R4. A specially-crafted HTTP request can lead to arbitrary file overwrite. An attacker can make an authenticated HTTP request to trigger this vulnerability.

### POC

#### Reference
- https://talosintelligence.com/vulnerability_reports/TALOS-2021-1323

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