CVE-2024-6898: Jkev Record Management System SQLi Flaw

CVE-2024-6898 Overview

A critical SQL injection vulnerability has been identified in SourceCodester Record Management System version 1.0. The vulnerability exists in the index.php file and can be exploited through manipulation of the UserName parameter. This flaw allows remote attackers to inject malicious SQL commands, potentially compromising the underlying database and gaining unauthorized access to sensitive records stored within the system.

Critical Impact

Remote attackers can exploit the SQL injection vulnerability to bypass authentication, extract sensitive data, modify database contents, or potentially achieve full system compromise through database server exploitation.

Affected Products

• Jkev Record Management System version 1.0
• SourceCodester Record Management System index.php component

Discovery Timeline

• 2024-07-19 - CVE-2024-6898 published to NVD
• 2024-11-21 - Last updated in NVD database

Technical Details for CVE-2024-6898

Vulnerability Analysis

This SQL injection vulnerability exists within the authentication mechanism of the Record Management System. The index.php file fails to properly sanitize or parameterize the UserName input field before incorporating it into SQL queries. When user-supplied data is directly concatenated into SQL statements without proper validation, it creates an injection point that attackers can leverage to execute arbitrary SQL commands against the database.

The network-accessible nature of this vulnerability means that any attacker with network access to the application can attempt exploitation without requiring authentication or user interaction. Successful exploitation can result in confidentiality breaches through data extraction, integrity violations through data modification, and availability impacts through data deletion or database corruption.

Root Cause

The root cause of CVE-2024-6898 is the improper handling of user input in the UserName parameter within index.php. The application directly incorporates user-supplied values into SQL queries without implementing parameterized queries, prepared statements, or adequate input sanitization. This lack of secure coding practices for database interactions is classified as CWE-89 (Improper Neutralization of Special Elements used in an SQL Command).

Attack Vector

The attack can be initiated remotely over the network against the web application's login functionality. An attacker submits specially crafted input through the UserName field containing SQL syntax that alters the intended query logic.

The vulnerability in the index.php file allows SQL injection through the UserName parameter. When the application constructs SQL queries by directly concatenating user input, malicious payloads such as single quotes, SQL keywords, and logical operators can be injected to manipulate query behavior. Common exploitation techniques include authentication bypass using tautology-based injections (e.g., ' OR '1'='1), UNION-based attacks for data exfiltration, and time-based blind injection for enumeration. For detailed technical information, refer to the GitHub vulnerability documentation.

Detection Methods for CVE-2024-6898

Indicators of Compromise

• Unusual database query patterns or errors in application logs originating from index.php
• Login attempts containing SQL syntax characters such as single quotes, semicolons, or SQL keywords in the username field
• Unexpected database access patterns or data exfiltration attempts
• Error messages revealing database structure or query information

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect SQL injection patterns in the UserName parameter
• Monitor application logs for SQL syntax characters and keywords in authentication requests
• Deploy database activity monitoring to identify anomalous query patterns or unauthorized data access
• Use intrusion detection systems (IDS) with signatures for SQL injection attempts

Monitoring Recommendations

• Enable verbose logging on the web application to capture all input to the index.php endpoint
• Configure database audit logging to track all queries executed against authentication-related tables
• Set up alerts for multiple failed login attempts with unusual character patterns
• Monitor for outbound data transfers that may indicate successful data exfiltration

How to Mitigate CVE-2024-6898

Immediate Actions Required

• Remove or restrict public access to the vulnerable Record Management System until patched
• Implement input validation and sanitization for all user-supplied parameters
• Deploy a Web Application Firewall (WAF) with SQL injection protection rules as an interim measure
• Review database logs for evidence of prior exploitation attempts

Patch Information

As of the last update on 2024-11-21, no official vendor patch has been released for this vulnerability. Organizations using SourceCodester Record Management System 1.0 should consider the following options:

• Contact the vendor (Jkev) for security update availability
• Review the VulDB entry for the latest remediation guidance
• Consider migrating to an alternative record management solution with active security support

Workarounds

• Implement parameterized queries or prepared statements in the index.php file to properly handle the UserName input
• Add input validation to reject SQL metacharacters and keywords in the UserName field
• Restrict network access to the application using firewall rules or VPN requirements
• Deploy application-level security controls such as a WAF configured to block SQL injection patterns

# Example WAF rule for ModSecurity to block SQL injection in UserName parameter
SecRule ARGS:UserName "@detectSQLi" \
    "id:1001,\
    phase:2,\
    deny,\
    status:403,\
    msg:'SQL Injection attempt detected in UserName parameter',\
    log,\
    auditlog"