SourceCodester Health Center Patient Record Management System SQL Injection Vulnerability

A critical SQL injection vulnerability has been identified in SourceCodester Health Center Patient Record Management System version 1.0. The issue resides in the '/patient.php' file, where the 'itr_no' parameter is manipulated to inject malicious SQL queries. This vulnerability can be exploited remotely, without any authentication, allowing attackers to access and manipulate the database, potentially leading to unauthorized data access, data modification or deletion, and disruption of services.

Impact

Exploitation of this vulnerability allows for unauthorized database access, data manipulation, and service disruption.

Reproduction

The vulnerability can be reproduced by sending a POST request to '/HCPMS/admin/patient.php' with the 'itr_no' parameter. Injecting a crafted SQL payload, such as '1' AND 4702=4702--', exploits the SQL injection flaw. This can be done using tools like sqlmap, which automates the injection and exploitation process.

Remediation

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 meets expected formats, blocking malicious data. Finally, database user permissions should be minimized, using accounts with only the necessary privileges.