Hello, fellow cybersecurity enthusiasts! Today, we will dive deep into a critical SQL injection vulnerability found in a widely-used web-based school management system. This security vulnerability, identified as CVE-2024-34928, impacts the Campcodes Complete Web-Based School Management System version 1., specifically targeting the /model/update_subject_routing.php file. This vulnerability allows a potential attacker to execute arbitrary SQL commands via the grade parameter, exposing a system to potential harm and unauthorized access.

For those unfamiliar with Campcodes Complete Web-Based School Management System, it is a popular software solution that allows academic institutions to manage various aspects of their organizations, such as enrollment, billing, and grading. With such sensitive information at stake, it's crucial to understand and mitigate the potential risks associated with this vulnerability.

Let's break it down step-by-step, analyzing the vulnerability itself, the affected code segments, and finally, the exploit details.

The Vulnerability: SQL Injection in /model/update_subject_routing.php

The vulnerability itself resides in the /model/update_subject_routing.php file. This weakness occurs due to improper sanitization of the grade parameter, which leads to a SQL injection vulnerability. The grade parameter, which is part of the HTTP POST request, is haphazardly concatenated into the query, opening doors for SQL injection attacks.

You may wonder, what is a SQL injection attack? In simple terms, a SQL injection vulnerability allows an attacker to insert malicious SQL code into an application, database, or system. These injections can potentially bypass security measures, compromise data, and grant unauthorized access to the attacker.

Code Snippet: The Issue in update_subject_routing.php

To understand the vulnerability better, let's examine the problematic code snippet found in the /model/update_subject_routing.php:

<?php
  // ...
  if(isset($_POST['grade'])){
    $grade = $_POST['grade'];
    // ...
 
    $query = "UPDATE masterlist SET grade = '$grade' WHERE master_idno= '$id';";
    $result = $mysqli->query($query);
    // ...
  }
?>

As you can see, the grade parameter is directly inserted ($grade) without proper filtering or sanitization. Consequently, this lack of input validation allows potential attackers to craft malicious SQL commands that might compromise the database.

For additional information on this vulnerability, refer to the following sources

1. National Vulnerability Database - Provides comprehensive information about the CVE-2024-34928, including its severity rating, impact, and related resources.

2. Campcodes Official Website - To learn more about the Campcodes Complete Web-Based School Management System and the features it offers.

Exploit Details: Executing Arbitrary SQL Commands

To exploit this security vulnerability, an attacker can craft a HTTP POST request containing malicious SQL code targeting the grade parameter. For instance, an attacker could use the following input as the grade parameter:

999'; DROP TABLE users; --

This input would execute a DROP TABLE command, potentially deleting an entire table within the database. With this level of unauthorized access, the attacker could cause irreversible damage to the school management system's data, impacting both the system's integrity and confidentiality.

In conclusion, the CVE-2024-34928 SQL injection vulnerability poses a significant risk to Campcodes Complete Web-Based School Management System users. To protect your system from exploitation, it's crucial to ensure proper input validation and sanitization across all application code. Additionally, stay up-to-date with the latest developments related to this vulnerability and ensure that all security patches and updates provided by the vendor are applied.

Knowledge is power; being informed and proactive safeguard your system against security threats like SQL injection. Together, we can create a more secure digital environment for all.

Timeline

Published on: 05/23/2024 17:15:29 UTC
Last modified on: 08/02/2024 02:59:22 UTC