CVEs-PoC/2021/CVE-2021-21804.md

### [CVE-2021-21804](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21804)
![](https://img.shields.io/static/v1?label=Product&message=Advantech&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-98%3A%20Improper%20Control%20of%20Filename%20for%20Include%2FRequire%20Statement%20in%20PHP%20Program%20('PHP%20Remote%20File%20Inclusion')&color=brighgreen)

### Description

A local file inclusion (LFI) vulnerability exists in the options.php script functionality of Advantech R-SeeNet v 2.4.12 (20.10.2020). A specially crafted HTTP request can lead to arbitrary PHP code execution. An attacker can send a crafted HTTP request to trigger this vulnerability.

### POC

#### Reference
- https://talosintelligence.com/vulnerability_reports/TALOS-2021-1273

#### Github
- https://github.com/Live-Hack-CVE/CVE-2021-21804