LibreNMS is an open-source, PHP/MySQL/SNMP-based network monitoring system. A SQL injection vulnerability in POST /search/search=packages in LibreNMS prior to version 24.4.0 allows a user with global read privileges to execute SQL commands via the package parameter. With this vulnerability, an attacker can exploit a SQL injection time based vulnerability to extract all data from the database, such as administrator credentials. Version 24.4.0 contains a patch for the vulnerability.
The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.