CVE-2021-25932 : Vulnerability Insights and Analysis

OpenNMS Horizon and OpenNMS Meridian are affected by a Stored Cross-Site Scripting vulnerability due to improper validation checks, allowing attackers to inject arbitrary scripts.

Understanding CVE-2021-25932

This vulnerability impacts OpenNMS versions opennms-1-0-stable through opennms-27.1.0-1 and Meridian versions meridian-foundation-2015.1.0-1 through meridian-foundation-2020.1.6-1.

What is CVE-2021-25932?

OpenNMS products suffer from a Stored Cross-Site Scripting flaw, enabling malicious actors to insert harmful scripts into the database through the

validateFormInput()

function.

The Impact of CVE-2021-25932

The vulnerability allows attackers to execute arbitrary scripts, potentially leading to data theft, unauthorized actions, or complete system compromise.

Technical Details of CVE-2021-25932

The vulnerability arises from inadequate validation in the

validateFormInput()

function, making it possible for threat actors to store malicious scripts in the database.

Vulnerability Description

The flaw in the validation process for the

userID

parameter grants attackers the ability to inject and save harmful scripts within the database.

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-2020.1.6-1 are susceptible to this vulnerability.

Exploitation Mechanism

By leveraging the improper validation controls in the

validateFormInput()

function, threat actors can craft and store malicious scripts via the

userID

parameter.

Mitigation and Prevention

It is crucial to take immediate steps to address and mitigate the risks posed by CVE-2021-25932 in OpenNMS products.

Immediate Steps to Take

Organizations should apply relevant patches and updates provided by OpenNMS to fix the vulnerability promptly.

Long-Term Security Practices

Implement secure coding practices and regular security audits to prevent similar vulnerabilities in the future.

Patching and Updates

Stay informed about security updates and apply patches released by OpenNMS to protect systems from potential exploitation.