CVEs-PoC/2021/CVE-2021-21327.md

### [CVE-2021-21327](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21327)
![](https://img.shields.io/static/v1?label=Product&message=glpi&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-862%20Missing%20Authorization&color=brighgreen)

### Description

GLPI is an open-source asset and IT management software package that provides ITIL Service Desk features, licenses tracking and software auditing. In GLPI before version 9.5.4 non-authenticated user can remotely instantiate object of any class existing in the GLPI environment that can be used to carry out malicious attacks, or to start a “POP chain”. As an example of direct impact, this vulnerability affects integrity of the GLPI core platform and third-party plugins runtime misusing classes which implement some sensitive operations in their constructors or destructors. This is fixed in version 9.5.4.

### POC

#### Reference
- http://packetstormsecurity.com/files/161680/GLPI-9.5.3-Unsafe-Reflection.html

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