CVE-2021-25930 : What You Need to Know

OpenNMS Horizon and OpenNMS Meridian versions are vulnerable to CSRF attacks due to lack of protection mechanisms. This allows an attacker to overwrite privileges of a user and delete them from the user list.

Understanding CVE-2021-25930

This CVE highlights a Cross-Site Request Forgery (CSRF) vulnerability in OpenNMS software.

What is CVE-2021-25930?

OpenNMS Horizon and OpenNMS Meridian versions suffer from CSRF vulnerability due to inadequate protection measures. The flaw allows an attacker to manipulate user privileges and delete users by renaming them.

The Impact of CVE-2021-25930

The CSRF vulnerability in OpenNMS software enables attackers to exploit user privileges, leading to potential security breaches and unauthorized user deletions.

Technical Details of CVE-2021-25930

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability arises from the absence of CSRF protection and lack of user name validation while renaming users.

Affected Systems and Versions

OpenNMS Horizon versions opennms-1-0-stable through opennms-27.1.0-1 and 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 affected.

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating user privileges and deleting users through the renaming functionality.

Mitigation and Prevention

Protecting your systems against CVE-2021-25930 is crucial to maintaining a secure environment.

Immediate Steps to Take

Ensure you have the latest updates and patches installed to mitigate the CSRF vulnerability.

Long-Term Security Practices

Implement thorough user validation checks and robust CSRF protection mechanisms to prevent similar exploits in the future.

Patching and Updates

Regularly update your OpenNMS software to the latest versions that include security patches addressing CVE-2021-25930.