CVEs-PoC/2021/CVE-2021-25931.md

### [CVE-2021-25931](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-25931)
![](https://img.shields.io/static/v1?label=Product&message=OpenNMS&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=opennms-1-0-stable%2Copennms-1.0.1%20through%20opennms-27.1.0-1%2Cmeridian-foundation-2015.1.0-1%20through%20meridian-foundation-2019.1.18-1%2Cmeridian-foundation-2020.1.0-1%20through%20meridian-foundation-2020.1.6-1%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Cross-Site%20Request%20Forgery&color=brightgreen)

### Description

In OpenNMS Horizon, versions opennms-1-0-stable through opennms-27.1.0-1; OpenNMS Meridian, versions meridian-foundation-2015.1.0-1 through meridian-foundation-2019.1.18-1; meridian-foundation-2020.1.0-1 through meridian-foundation-2020.1.6-1 are vulnerable to CSRF, due to no CSRF protection at `/opennms/admin/userGroupView/users/updateUser`. This flaw allows assigning `ROLE_ADMIN` security role to a normal user. Using this flaw, an attacker can trick the admin user to assign administrator privileges to a normal user by enticing him to click upon an attacker-controlled website.

### POC

#### Reference
- https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25931

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