CVE-2024-3418: Argie Online Courseware SQLi Vulnerability

CVE-2024-3418 Overview

A critical SQL injection vulnerability has been identified in SourceCodester Online Courseware version 1.0. The vulnerability exists in an unknown function within the file admin/deactivateteach.php, where improper handling of the selector argument allows attackers to inject malicious SQL commands. This flaw can be exploited remotely without authentication, potentially allowing attackers to access, modify, or delete sensitive database contents including user credentials, course materials, and administrative data.

Critical Impact

Remote attackers can exploit this SQL injection vulnerability to gain unauthorized access to the underlying database, potentially compromising all user data, course information, and administrative credentials stored in the application.

Affected Products

• Argie Online Courseware 1.0
• SourceCodester Online Courseware 1.0

Discovery Timeline

• 2024-04-07 - CVE-2024-3418 published to NVD
• 2025-01-17 - Last updated in NVD database

Technical Details for CVE-2024-3418

Vulnerability Analysis

This vulnerability is classified as CWE-89 (SQL Injection), which occurs when user-supplied input is incorporated into SQL queries without proper sanitization or parameterization. In the case of CVE-2024-3418, the admin/deactivateteach.php script fails to properly validate or escape the selector parameter before using it in database queries.

The exploit has been publicly disclosed, which increases the risk of widespread exploitation. Educational institutions and organizations using this courseware platform face significant risk as the application likely stores sensitive student and instructor information.

Root Cause

The root cause of this vulnerability is the lack of input validation and parameterized queries in the admin/deactivateteach.php file. The application directly concatenates user-supplied input from the selector parameter into SQL statements, allowing attackers to manipulate the query structure. This is a fundamental secure coding failure that should have been addressed during development using prepared statements or stored procedures.

Attack Vector

The attack can be launched remotely over the network without requiring any authentication or user interaction. An attacker can craft malicious HTTP requests targeting the admin/deactivateteach.php endpoint with specially crafted SQL payloads in the selector parameter. This allows for various SQL injection techniques including:

• Union-based SQL injection to extract data from other tables
• Boolean-based blind SQL injection to enumerate database contents
• Time-based blind SQL injection for data exfiltration
• Stacked queries to modify or delete data

The vulnerability manifests in the selector parameter handling within admin/deactivateteach.php. For technical details and proof-of-concept information, refer to the GitHub Courseware Resource and VulDB #259590.

Detection Methods for CVE-2024-3418

Indicators of Compromise

• Unusual or malformed HTTP requests to /admin/deactivateteach.php containing SQL syntax in the selector parameter
• Web application logs showing error messages related to SQL syntax errors from the deactivateteach.php endpoint
• Database logs indicating unexpected queries or access patterns from the web application
• Evidence of data exfiltration or unauthorized database modifications

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect and block SQL injection attempts targeting the selector parameter
• Implement application-level logging to capture all requests to admin/deactivateteach.php for forensic analysis
• Configure database monitoring to alert on suspicious query patterns or elevated privilege usage
• Use intrusion detection systems (IDS) with SQL injection signatures to identify exploitation attempts

Monitoring Recommendations

• Enable detailed access logging for the web server hosting Online Courseware
• Monitor database query logs for anomalous patterns including UNION SELECT, OR 1=1, and time-delay functions
• Set up alerts for failed authentication attempts followed by successful database access
• Regularly review application logs for evidence of parameter manipulation or injection attempts

How to Mitigate CVE-2024-3418

Immediate Actions Required

• Take the affected Online Courseware application offline if it is internet-facing
• Implement network-level access controls to restrict access to the admin directory
• Deploy a Web Application Firewall (WAF) with SQL injection protection rules as an interim measure
• Review database logs and application access logs for signs of prior exploitation

Patch Information

As of the last update, no official vendor patch has been released for this vulnerability. Organizations using SourceCodester Online Courseware 1.0 should contact the vendor for security updates or consider the following alternatives:

• Migrate to an alternative learning management system with better security practices
• Engage a security professional to implement custom code fixes
• Monitor VulDB and vendor resources for patch announcements

Workarounds

• Restrict access to the /admin/ directory using IP whitelisting or VPN requirements
• Implement input validation at the web server level using ModSecurity or similar WAF rules
• Disable or remove the deactivateteach.php file if the teacher deactivation functionality is not critical
• Place the application behind a reverse proxy with SQL injection filtering capabilities

# Example Apache .htaccess configuration to restrict admin access
<Directory "/var/www/html/courseware/admin">
    Order Deny,Allow
    Deny from all
    Allow from 192.168.1.0/24
    Allow from 10.0.0.0/8
</Directory>