itsourcecode Web-Based Internet Laboratory Management System SQL Injection Vulnerability in Controller File

A SQL injection vulnerability has been identified in version 1.0 of the itsourcecode Web-Based Internet Laboratory Management System. The issue resides in the '/course/controller.php' file, where insufficient validation of user input in the 'action=delete&id=1' parameter allows attackers to inject malicious SQL queries. This vulnerability can be exploited remotely, without any authentication, potentially leading to unauthorized access to the database, data manipulation or deletion, and exposure of sensitive information.

Impact

Exploitation of this vulnerability allows for SQL injection, enabling attackers to interfere with the application's database queries. This could lead to unauthorized data access, data modification or deletion, and in some cases, executing administrative operations on the database.

Reproduction

The vulnerability can be reproduced by sending a request to 'course/controller.php' with the 'action' parameter set to 'delete' and the 'id' parameter set to a value that triggers the injection. The injection can be verified by using a payload that, for example, causes a time-based delay, indicating successful exploitation.

Remediation

To address this vulnerability, it is recommended to implement prepared statements and parameter binding to separate SQL code from user input, ensuring that injected data is not executed as part of the SQL command. Additionally, input validation and filtering should be applied to conform user data to expected formats. Minimizing database user permissions and conducting regular security audits can further enhance the application's security.