CVE-2019-12464 : Exploit Details and Defense Strategies

LibreNMS 1.50.1 has a vulnerability allowing an authenticated user to exploit a directory traversal attack, potentially leading to local file inclusion and code execution.

Understanding CVE-2019-12464

What is CVE-2019-12464?

An issue in LibreNMS 1.50.1 enables an authenticated user to perform a directory traversal attack on the /pdf.php file, resulting in local file inclusion and potential code execution.

The Impact of CVE-2019-12464

This vulnerability can be exploited by an authenticated user to execute malicious code through a directory traversal attack.

Technical Details of CVE-2019-12464

Vulnerability Description

Authenticated users can exploit a directory traversal attack on the /pdf.php file using a partial filename in the report parameter.
This can lead to local file inclusion and potentially execute malicious code.

Affected Systems and Versions

Product: LibreNMS 1.50.1
Vendor: N/A
Version: N/A

Exploitation Mechanism

Attackers can manipulate the report parameter with a partial filename to traverse directories and include local files, enabling code execution.

Mitigation and Prevention

Immediate Steps to Take

Update LibreNMS to a patched version that addresses the vulnerability.
Restrict access to the /pdf.php file to authorized users only.

Long-Term Security Practices

Regularly monitor and audit user activities within LibreNMS.
Implement strong authentication mechanisms to prevent unauthorized access.

Patching and Updates

Apply security patches and updates provided by LibreNMS to fix the vulnerability.