CVEs-PoC/2021/CVE-2021-41843.md

### [CVE-2021-41843](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-41843)
![](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 authenticated SQL injection issue in the calendar search function of OpenEMR 6.0.0 before patch 3 allows an attacker to read data from all tables of the database via the parameter provider_id, as demonstrated by the /interface/main/calendar/index.php?module=PostCalendar&func=search URI.

### POC

#### Reference
- http://packetstormsecurity.com/files/165301/OpenEMR-6.0.0-6.1.0-dev-SQL-Injection.html
- http://seclists.org/fulldisclosure/2021/Dec/38
- https://trovent.github.io/security-advisories/TRSA-2109-01/TRSA-2109-01.txt
- https://trovent.io/security-advisory-2109-01

#### Github
- https://github.com/ARPSyndicate/cvemon