SourceCodester Pet Grooming Management Software SQL Injection Vulnerability

A SQL injection vulnerability has been identified in SourceCodester Pet Grooming Management Software version 1.0. The issue resides in the admin/view_customer.php file, specifically through the ID parameter, which is used to manage customer information. This vulnerability allows attackers to inject malicious SQL queries, potentially leading to unauthorized access to the database, modification or deletion of sensitive records, and privilege escalation.

Impact

Exploitation of this vulnerability allows attackers to read, modify, or delete database records, bypass authentication, and gain administrative privileges, compromising the entire system.

Reproduction

To reproduce this vulnerability, log into the application and navigate to the 'Customer Management' section. Select a customer to edit, which will trigger a request containing the 'id' parameter. This parameter is vulnerable to SQL injection, as demonstrated by intercepting the request with Burp Suite and using SQLMap to exploit the injection and dump the database.

Remediation

To address this vulnerability, implement parameterized queries or prepared statements for all database interactions. Validate and sanitize user input on the server side, ensuring that only acceptable values are processed. Limit database account privileges to the minimum necessary for application functionality, and avoid using dynamic SQL that could be manipulated. Finally, enhance error handling to prevent the disclosure of database errors to users, while logging suspicious activities for monitoring.