Code-Projects Electricity Billing System SQL Injection Vulnerability in Change Password Functionality

A critical SQL injection vulnerability has been identified in version 1.0 of the Code-Projects Electricity Billing System. The issue resides in the '/user/change_password.php' file, where the 'new_password' parameter is manipulated to inject malicious SQL queries. This vulnerability can be exploited remotely, without any authentication, allowing attackers to gain unauthorized access to the database, modify or delete data, and access sensitive information.

Impact

Exploitation of this vulnerability allows for unauthorized database access and manipulation, including data modification and deletion. It also poses a risk of accessing sensitive information, leading to a comprehensive compromise of system control and potential service interruptions.

Reproduction

The vulnerability can be reproduced by sending a POST request to the '/user/change_password.php' file with a crafted 'new_password' parameter that includes malicious SQL payloads. This can be done using tools like sqlmap, which automates the process of finding and exploiting SQL injection vulnerabilities.

Remediation

To address this vulnerability, it is recommended to use prepared statements and parameter binding to prevent SQL injection. Additionally, input validation and filtering should be implemented to ensure user input conforms to expected formats. Minimizing database user permissions and conducting regular security audits are also advisable.