cve/2021/CVE-2021-3239.md

### [CVE-2021-3239](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3239)
![](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

E-Learning System 1.0 suffers from an unauthenticated SQL injection vulnerability, which allows remote attackers to execute arbitrary code on the hosting web server and gain a reverse shell.

### POC

#### Reference
- https://github.com/nu11secur1ty/CVE-nu11secur1ty/tree/main/vendors/janobe/CVE-nu11-101821
- https://packetstormsecurity.com/files/160966/E-Learning-System-1.0-SQL-Injection-Shell-Upload.html
- https://www.exploit-db.com/exploits/49434

#### Github
- https://github.com/2lambda123/CVE-mitre
- https://github.com/Offensive-Penetration-Security/OPSEC-Hall-of-fame
- https://github.com/nu11secur1ty/CVE-mitre
- https://github.com/yshneyderman/CS590J-Capstone