CVE-2024-3423: Argie Online Courseware SQLi Vulnerability

CVE-2024-3423 Overview

A critical SQL injection vulnerability has been identified in SourceCodester Online Courseware version 1.0. The vulnerability exists in the admin/activateteach.php file, where improper handling of the selector argument allows attackers to inject malicious SQL queries. This flaw can be exploited remotely without authentication, potentially enabling attackers to extract sensitive data, modify database contents, or compromise the underlying system.

Critical Impact

Remote attackers can exploit this SQL injection vulnerability to gain unauthorized access to the database, potentially extracting user credentials, course information, and other sensitive data stored in the Online Courseware application.

Affected Products

• SourceCodester Online Courseware 1.0
• Argie Online Courseware 1.0

Discovery Timeline

• 2024-04-07 - CVE-2024-3423 published to NVD
• 2025-01-31 - Last updated in NVD database

Technical Details for CVE-2024-3423

Vulnerability Analysis

This vulnerability represents a classic SQL injection flaw (CWE-89) where user-supplied input is incorporated into SQL queries without proper sanitization or parameterization. The admin/activateteach.php file accepts user input through the selector parameter, which is then directly concatenated into database queries. This allows attackers to manipulate the query logic by injecting SQL syntax, bypassing authentication controls, and accessing or modifying database records beyond their intended scope.

The exploit has been publicly disclosed, increasing the risk of widespread exploitation against systems running the vulnerable software. Organizations using SourceCodester Online Courseware should treat this as a high-priority security concern requiring immediate remediation.

Root Cause

The root cause of this vulnerability is insufficient input validation and the absence of parameterized queries in the admin/activateteach.php file. The application directly incorporates the selector parameter value into SQL statements without sanitizing special characters or using prepared statements with bound parameters. This coding practice violates secure development principles and creates a direct pathway for SQL injection attacks.

Attack Vector

The attack can be initiated remotely over the network without requiring authentication. An attacker can craft a malicious HTTP request to the admin/activateteach.php endpoint, manipulating the selector parameter to include SQL injection payloads. By exploiting this vulnerability, attackers may:

• Extract sensitive information from the database including user credentials
• Modify or delete database records
• Bypass authentication mechanisms
• Potentially execute operating system commands depending on database configuration

The vulnerability is documented in publicly available resources. Technical details can be found in the GitHub Courseware Documentation and the VulDB entry #259595.

Detection Methods for CVE-2024-3423

Indicators of Compromise

• Unusual or malformed requests to admin/activateteach.php containing SQL syntax characters such as single quotes, double dashes, or UNION statements
• Database error messages exposed in application responses indicating SQL syntax errors
• Unexpected database query patterns or queries accessing tables outside normal application scope
• Signs of data exfiltration or unauthorized database modifications

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block common SQL injection patterns targeting the selector parameter
• Monitor web server access logs for requests to admin/activateteach.php with suspicious query strings
• Deploy database activity monitoring to identify anomalous SQL queries that deviate from normal application behavior
• Configure intrusion detection systems (IDS) with signatures for SQL injection attack patterns

Monitoring Recommendations

• Enable detailed logging for the Online Courseware application and database server
• Set up alerts for failed SQL queries or database errors that may indicate injection attempts
• Monitor for unusual administrative activity or privilege escalation within the application
• Review authentication logs for signs of unauthorized access following potential exploitation

How to Mitigate CVE-2024-3423

Immediate Actions Required

• Restrict network access to the admin/activateteach.php file until a patch is applied
• Implement Web Application Firewall rules to filter SQL injection payloads
• Review database permissions and restrict the application's database user to minimum required privileges
• Consider taking the vulnerable application offline if it contains sensitive data and no mitigation is available

Patch Information

No official vendor patch information is currently available from SourceCodester for this vulnerability. Organizations should monitor the vendor's website and security advisories for updates. Additional technical details are available through VulDB #259595 and the GitHub vulnerability documentation.

Workarounds

• Deploy a Web Application Firewall (WAF) configured to detect and block SQL injection attempts
• Implement input validation on the selector parameter to allow only expected values
• Apply the principle of least privilege to database accounts used by the application
• Isolate the application server from critical network segments until remediation is complete
• If source code access is available, modify admin/activateteach.php to use parameterized queries

# Example WAF rule to block SQL injection attempts (ModSecurity)
SecRule ARGS:selector "@detectSQLi" \
    "id:1001,\
    phase:2,\
    deny,\
    status:403,\
    log,\
    msg:'SQL Injection attempt detected in selector parameter',\
    tag:'CVE-2024-3423'"