CVE-2020-15873 : Security Advisory and Response

In LibreNMS before 1.65.1, an authenticated attacker can achieve SQL Injection via the customoid.inc.php device_id POST parameter to ajax_form.php.

Understanding CVE-2020-15873

This CVE involves a SQL Injection vulnerability in LibreNMS before version 1.65.1, allowing an authenticated attacker to exploit a specific POST parameter.

What is CVE-2020-15873?

CVE-2020-15873 is a security vulnerability in LibreNMS that enables an authenticated attacker to perform SQL Injection through the device_id POST parameter in ajax_form.php.

The Impact of CVE-2020-15873

The exploitation of this vulnerability can lead to unauthorized access to the database, manipulation of data, and potentially further compromise of the affected system.

Technical Details of CVE-2020-15873

This section provides more in-depth technical insights into the CVE.

Vulnerability Description

The vulnerability in LibreNMS before 1.65.1 allows an authenticated attacker to execute SQL Injection via the customoid.inc.php device_id POST parameter to ajax_form.php.

Affected Systems and Versions

Affected Version: LibreNMS before 1.65.1
Systems: Any system running LibreNMS versions prior to 1.65.1

Exploitation Mechanism

The attacker needs to be authenticated to the system and can exploit the vulnerability by manipulating the device_id POST parameter in ajax_form.php.

Mitigation and Prevention

Protecting systems from CVE-2020-15873 requires immediate actions and long-term security practices.

Immediate Steps to Take

Upgrade LibreNMS to version 1.65.1 or later to mitigate the vulnerability.
Monitor system logs for any suspicious activities related to SQL Injection.

Long-Term Security Practices

Regularly update and patch software to prevent known vulnerabilities.
Implement strong authentication mechanisms to reduce the risk of unauthorized access.
Conduct regular security audits and penetration testing to identify and address potential weaknesses.

Patching and Updates

Ensure timely application of security patches and updates to keep systems protected from known vulnerabilities.