Executive Summary

This vulnerability in LibreNMS before version 25.11.0 involves a weak password policy in the user management functionality. It allows administrators to create accounts with very weak and predictable passwords, such as '12345678', which makes the platform vulnerable to brute-force and credential stuffing attacks.

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Impact Analysis

The vulnerability can impact you by exposing your LibreNMS installation to unauthorized access through brute-force or credential stuffing attacks. Attackers could gain access to accounts protected by weak passwords, potentially compromising the security of your network monitoring data.

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Detection Guidance

You can detect this vulnerability by checking for user accounts with weak or predictable passwords, such as '12345678'. Since the vulnerability is related to weak password policies in LibreNMS prior to version 25.11.0, reviewing the user accounts in the LibreNMS user management interface or database for weak passwords is recommended. There are no specific commands provided to detect this vulnerability.

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Mitigation Strategies

To mitigate this vulnerability, immediately upgrade LibreNMS to version 25.11.0 or later, where the weak password policy issue has been patched. Additionally, enforce a strong password policy for all user accounts and review existing accounts to change any weak or predictable passwords.

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