Campcodes Supplier Management System SQL Injection Vulnerability in add_unit.php

A SQL injection vulnerability has been identified in Campcodes Supplier Management System version 1.0, specifically within the admin/add_unit.php file. The issue arises from inadequate validation of user input in the 'txtunitDetails' parameter, allowing attackers to inject malicious SQL queries. This vulnerability can be exploited remotely, without any authentication, potentially leading to unauthorized database access, data manipulation, 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 result in unauthorized data access, data modification or deletion, and in some cases, executing administrative operations on the database.

Reproduction

To reproduce this vulnerability, send a POST request to the '/admin/add_unit.php' endpoint with the 'txtunitDetails' parameter. Include a crafted SQL payload that exploits the application's SQL query handling. The injection can be verified by observing the application's response or by using a tool like sqlmap to automate the 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 conforms to expected formats. Minimizing database user permissions and conducting regular security audits can also help mitigate such vulnerabilities.