CVE-2023-46745 : What You Need to Know

LibreNMS encountered a rate limiting bypass on the login page, leading to a security vulnerability. Find out the details, impact, and mitigation steps below.

Understanding CVE-2023-46745

This section delves into the specifics of the CVE-2023-46745 vulnerability in LibreNMS.

What is CVE-2023-46745?

LibreNMS, a PHP/MySQL/SNMP based network monitoring tool, version < 23.11.0, was impacted by a rate limiting bypass on the login page. This flaw allowed attackers to bypass login rate limits, potentially gaining unauthorized access to user accounts.

The Impact of CVE-2023-46745

The vulnerability in LibreNMS could result in unauthorized access to sensitive user accounts due to the absence of rate limits on the login page. Attackers could exploit this flaw for malicious purposes, posing a significant security risk to affected systems.

Technical Details of CVE-2023-46745

Learn more about the technical aspects of CVE-2023-46745 to better understand the implications and severity of the security issue.

Vulnerability Description

The flaw in LibreNMS < 23.11.0 allowed attackers to bypass rate limits on the login page, enabling them to conduct excessive authentication attempts without restriction.

Affected Systems and Versions

LibreNMS versions earlier than 23.11.0 were affected by this vulnerability, leaving them susceptible to unauthorized access and potential compromise.

Exploitation Mechanism

By exploiting the rate limiting bypass on the login page, threat actors could launch brute force attacks or automated scripts to gain unauthorized entry into user accounts with compromised credentials.

Mitigation and Prevention

Discover the essential steps to mitigate the risk posed by CVE-2023-46745 and prevent similar security incidents.

Immediate Steps to Take

Users of LibreNMS should promptly update their installations to version 23.11.0 or later to address the rate limiting bypass vulnerability on the login page. Updating to the patched version is crucial to prevent unauthorized access and enhance system security.

Long-Term Security Practices

Implementing robust security measures, such as enabling multi-factor authentication, regularly monitoring system logs for suspicious activities, and conducting security assessments, can enhance the overall security posture and prevent future vulnerabilities.

Patching and Updates

Frequent monitoring of security advisories from LibreNMS and promptly applying patches and updates can help safeguard systems from known vulnerabilities and ensure continuous protection against emerging threats.