In today's post, we will be discussing a reported vulnerability identified as CVE-2022-43292. This security flaw affects version 1. of the Canteen Management System and utilizes an SQL injection attack to potentially compromise sensitive user data. Before diving into the exploit details, we will walk you through a brief introduction to the system itself.

What is the Canteen Management System?

The Canteen Management System (CMS) is an application that assists in the management of canteens, streamlining operations, and increasing efficiency. CMS version 1. enables the handling of customer orders, food items, and inventory, among other things.

The Vulnerability

CVE-2022-43292 is a vulnerability that exists within the /youthappam/editfood.php file. This file is used to edit the food items on the system. The vulnerability initially went unnoticed, but a security researcher discovered an SQL injection vulnerability via the 'id' parameter, posing a potential threat to the confidentiality and integrity of the system.

The Exploit

The security flaw can be exploited by a remote attacker who has accessed the vulnerable application. By manipulating the 'id' parameter in the URL like /youthappam/editfood.php?id=_, an attacker can inject malicious SQL code into the query, which may lead to unauthorized access to sensitive data.

Here is a code snippet that illustrates the vulnerability

// editfood.php
$id = $_REQUEST['id'];
$query = "SELECT * FROM tbl_food WHERE id={$id}";
$result = mysqli_query($db, $query);

As you can see, there is no input validation or sanitization applied to the 'id' parameter in the code, making it susceptible to an SQL injection.

An attacker can use an URL similar to the following to exploit the vulnerability

http://example.com/youthappam/editfood.php?id=1%20AND%201=2%20UNION%20SELECT%201,username,password,4,5,6,7%20FROM%20tbl_admin

This URL will result in the attacker retrieving the usernames and passwords of the admin users from the tbl_admin table.

To protect your system and data, you should adhere to the following best practices

1. Proper input validation: Make sure that any input from users is strictly validated and restricted to the allowed scope.
2. Use prepared statements: Utilize prepared statements with parameterized queries when dealing with SQL commands.
3. Regularly update and patch your software: Ensure that you are using the latest version of software, which may include bug fixes and security improvements.

The following resources offer further insight into the vulnerability

1. CVE-2022-43292: Canteen Management System v1. - SQL Injection
2. Canteen Management System v1. - SQL Injection

Conclusion

CVE-2022-43292 is a notable SQL injection vulnerability that affects the Canteen Management System v1.. This vulnerability allows attackers to access sensitive data by injecting malicious code into the 'id' parameter in /youthappam/editfood.php. Understanding the risks posed by this exploit and implementing proper security measures such as input validation and prepared statements can help mitigate the threat and secure your system.

Timeline

Published on: 11/09/2022 15:15:00 UTC
Last modified on: 11/10/2022 15:01:00 UTC