CVE-2019-10670 : What You Need to Know

A vulnerability has been found in LibreNMS up to version 1.47 that allows for the injection of malicious JavaScript code into the browser.

Understanding CVE-2019-10670

What is CVE-2019-10670?

LibreNMS up to version 1.47 is susceptible to a vulnerability where user input meant for HTML or JavaScript usage can be injected with insecure data, potentially enabling the execution of malicious JavaScript code in the browser.

The Impact of CVE-2019-10670

This vulnerability could lead to the execution of attacker-controlled JavaScript in the browser, posing a significant security risk to users of LibreNMS.

Technical Details of CVE-2019-10670

Vulnerability Description

The vulnerability arises from the use of the mysqli_escape_real_string function for data filtering, which proves ineffective in preventing the injection of insecure data into HTML or JavaScript contexts.

Affected Systems and Versions

Systems running LibreNMS up to version 1.47

Exploitation Mechanism

Injection of malicious JavaScript code through user input intended for HTML or JavaScript contexts

Mitigation and Prevention

Immediate Steps to Take

Upgrade LibreNMS to a version beyond 1.47 to mitigate the vulnerability
Avoid inputting untrusted data into HTML or JavaScript contexts

Long-Term Security Practices

Regularly update LibreNMS to the latest version to patch known vulnerabilities

Patching and Updates

Apply patches and updates provided by LibreNMS to address security issues