PHPGurukul Bank Locker Management System SQL Injection Vulnerability

A critical SQL injection vulnerability has been identified in PHPGurukul Bank Locker Management System version 1.0. The issue resides in the '/banker/aboutus.php' file, where the 'pagetitle' parameter is manipulated, allowing attackers to inject malicious SQL queries. This vulnerability can be exploited remotely, without any authentication, leading to unauthorized database access, data manipulation, and potential service disruption.

Impact

Exploitation of this vulnerability allows for unauthorized access to the database, where attackers can read, modify, or delete data. This could also lead to unauthorized control over the system and cause interruptions in service.

Reproduction

The vulnerability can be reproduced by sending a POST request to '/banker/aboutus.php' with the 'pagetitle' parameter. The request should include a payload that exploits the SQL injection, such as one that uses a time-based blind injection technique, like '11' AND (SELECT SLEEP(5)) -- . This payload can be used to test the injection vulnerability by observing a delay in the response, indicating that the injection was successful.

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 conforms to expected formats. Minimizing database user permissions and conducting regular security audits are also advisable.