CVE-2024-3314: Computer Laboratory Management SQL Injection

CVE-2024-3314 Overview

A critical SQL injection vulnerability has been discovered in SourceCodester Computer Laboratory Management System version 1.0. This vulnerability exists in the file /classes/Users.php where improper handling of user-supplied input allows attackers to inject malicious SQL queries. The vulnerability can be exploited remotely without authentication, potentially allowing complete compromise of the underlying database.

Critical Impact

This SQL injection vulnerability enables remote attackers to extract, modify, or delete sensitive data from the database, potentially leading to full system compromise without requiring authentication.

Affected Products

• SourceCodester Computer Laboratory Management System 1.0
• oretnom23 computer_laboratory_management_system

Discovery Timeline

• 2024-04-04 - CVE-2024-3314 published to NVD
• 2025-01-22 - Last updated in NVD database

Technical Details for CVE-2024-3314

Vulnerability Analysis

This vulnerability is classified as CWE-89 (SQL Injection), which occurs when user-controllable input is incorporated into database queries without proper sanitization or parameterization. In the SourceCodester Computer Laboratory Management System, the /classes/Users.php file processes user input in a way that allows injection of arbitrary SQL commands into database queries.

The network-accessible nature of this vulnerability means that an attacker can exploit it remotely without requiring any prior authentication or special privileges. Successful exploitation could result in unauthorized access to sensitive information stored in the database, modification or deletion of data, and potentially execution of administrative operations on the database server.

Root Cause

The root cause of this vulnerability is the lack of proper input validation and sanitization in the Users.php file. The application directly incorporates user-supplied data into SQL queries without using parameterized queries or prepared statements. This allows malicious actors to escape the intended query context and inject their own SQL commands.

Attack Vector

The attack can be initiated remotely over the network. An attacker does not require any authentication or user interaction to exploit this vulnerability. By crafting malicious input containing SQL syntax and sending it to the affected endpoint, an attacker can manipulate database queries to:

• Extract sensitive user credentials and personal information
• Bypass authentication mechanisms
• Modify or delete database records
• Potentially gain access to the underlying operating system through database functions

The vulnerability resides in the /classes/Users.php file where user-supplied parameters are processed. A typical SQL injection attack against this endpoint would involve inserting SQL metacharacters and commands into input fields or URL parameters that are then passed to the vulnerable PHP script. Without proper input sanitization, these malicious inputs are interpreted as part of the SQL query structure rather than as data values.

Detection Methods for CVE-2024-3314

Indicators of Compromise

• Unusual database query patterns in application logs containing SQL syntax characters such as single quotes, semicolons, or UNION keywords
• Unexpected database errors or exceptions in web server logs
• Evidence of data exfiltration or unauthorized database access
• Login attempts or successful authentications that bypass normal authentication workflows

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect SQL injection patterns in HTTP requests
• Monitor application logs for SQL error messages that may indicate injection attempts
• Deploy database activity monitoring to identify anomalous query patterns
• Review access logs for requests to /classes/Users.php containing suspicious parameters

Monitoring Recommendations

• Enable verbose logging on the database server to capture all executed queries
• Configure alerting for database errors and exceptions that may indicate SQL injection attempts
• Monitor for bulk data extraction patterns that could indicate successful exploitation
• Implement real-time log analysis to detect and respond to injection attempts promptly

How to Mitigate CVE-2024-3314

Immediate Actions Required

• Restrict network access to the Computer Laboratory Management System to trusted networks only
• Implement a Web Application Firewall (WAF) with SQL injection protection rules
• Review and audit database user permissions, applying the principle of least privilege
• Consider taking the application offline until a patch or workaround is applied

Patch Information

As of the last update on 2025-01-22, no official vendor patch has been referenced in the vulnerability database. Users of SourceCodester Computer Laboratory Management System should monitor the vendor's channels for security updates. For additional technical details, refer to VulDB Entry #259385.

Workarounds

• Implement input validation on all user-supplied data before processing
• Use parameterized queries or prepared statements in all database operations
• Deploy a WAF configured to block common SQL injection attack patterns
• Apply network-level access controls to limit exposure of the vulnerable application

The vulnerability can be mitigated at the code level by modifying database queries to use prepared statements. For PHP applications, this involves using PDO with parameterized queries or mysqli with prepared statements instead of directly concatenating user input into SQL strings. Database accounts used by the application should be configured with minimal necessary privileges to limit the impact of successful exploitation.