CVE-2024-0729: ForU CMS SQL Injection Vulnerability

CVE-2024-0729 Overview

A critical SQL injection vulnerability has been identified in ForU CMS affecting versions up to and including the 2020-06-23 release. The vulnerability exists in the cms_admin.php file, where improper handling of the a_name parameter allows attackers to inject malicious SQL queries. This flaw enables unauthenticated remote attackers to manipulate database queries, potentially leading to unauthorized data access, data modification, or complete database compromise.

Critical Impact

This SQL injection vulnerability allows unauthenticated remote attackers to execute arbitrary SQL commands against the underlying database, potentially resulting in full data breach, data manipulation, or complete system takeover.

Affected Products

• ForU CMS versions up to 2020-06-23
• foru_cms_project foru_cms (all versions through the affected date)

Discovery Timeline

• 2024-01-19 - CVE-2024-0729 published to NVD
• 2024-11-21 - Last updated in NVD database

Technical Details for CVE-2024-0729

Vulnerability Analysis

This vulnerability represents a classic SQL injection flaw in the administrative component of ForU CMS. The cms_admin.php file fails to properly sanitize user-supplied input through the a_name parameter before incorporating it into SQL queries. This allows attackers to break out of the intended query structure and inject arbitrary SQL statements.

The attack can be executed remotely over the network without requiring any authentication or user interaction. When successfully exploited, an attacker can read, modify, or delete sensitive data from the database, bypass authentication mechanisms, or potentially gain shell access to the underlying server through database-specific functions.

The exploit details have been publicly disclosed, increasing the risk of widespread exploitation. Organizations running affected versions of ForU CMS should treat this as a high-priority security issue requiring immediate remediation.

Root Cause

The root cause of CVE-2024-0729 is improper input validation and the lack of parameterized queries in the cms_admin.php file. The application directly concatenates user-supplied input from the a_name parameter into SQL query strings without proper sanitization, escaping, or the use of prepared statements. This CWE-89 (SQL Injection) vulnerability allows malicious input to alter the intended SQL command structure.

Attack Vector

The attack vector is network-based, targeting the cms_admin.php endpoint. An attacker can craft a malicious HTTP request containing SQL injection payloads in the a_name parameter. Since no authentication is required to exploit this vulnerability, any remote attacker with network access to the vulnerable CMS installation can attempt exploitation.

The attack typically involves submitting specially crafted input that breaks out of the expected parameter context and appends additional SQL commands. Common exploitation techniques include UNION-based injection for data extraction, boolean-based blind injection for inferring database contents, and time-based blind injection when direct output is not available.

Technical details and additional vulnerability documentation are available in the GitHub LFI Vulnerability Document and VulDB #251552.

Detection Methods for CVE-2024-0729

Indicators of Compromise

• Unusual HTTP requests to cms_admin.php containing SQL metacharacters (single quotes, double dashes, UNION keywords, etc.) in the a_name parameter
• Database error messages appearing in web server logs or responses indicating malformed SQL queries
• Unexpected database queries or access patterns from the web application user account
• Evidence of data exfiltration or unauthorized database modifications
• Login bypasses or administrative access by unknown accounts

Detection Strategies

• Implement web application firewall (WAF) rules to detect and block common SQL injection patterns targeting the a_name parameter
• Monitor HTTP request logs for payloads containing SQL keywords such as SELECT, UNION, INSERT, DROP, and comment sequences
• Configure database audit logging to capture and alert on anomalous query patterns from the CMS application
• Deploy intrusion detection systems (IDS) with signatures for SQL injection attack patterns

Monitoring Recommendations

• Enable detailed logging on web servers hosting ForU CMS and regularly review logs for suspicious activity
• Implement real-time alerting for SQL error messages or unusual query response times
• Monitor database connection logs for failed authentication attempts or privilege escalation queries
• Utilize SentinelOne Singularity XDR to correlate web application events with database and system-level activity for comprehensive threat detection

How to Mitigate CVE-2024-0729

Immediate Actions Required

• Remove or restrict access to the vulnerable ForU CMS installation until a patch is applied
• Implement web application firewall rules to filter SQL injection attempts targeting cms_admin.php
• Review database logs for evidence of prior exploitation and assess potential data compromise
• Consider migrating to an actively maintained CMS platform if ForU CMS is no longer receiving security updates
• Apply the principle of least privilege to database accounts used by the CMS

Patch Information

No official vendor patch information is currently available for CVE-2024-0729. Given that the affected version dates to 2020-06-23 and no vendor advisories have been published, the ForU CMS project may be abandoned or unsupported. Organizations should evaluate whether continued use of this CMS is appropriate from a security standpoint.

For additional technical details and vulnerability tracking, refer to VulDB CTI #251552.

Workarounds

• Deploy a web application firewall (WAF) in front of the ForU CMS installation to block SQL injection payloads
• Restrict network access to administrative interfaces using IP whitelisting or VPN requirements
• Manually patch the cms_admin.php file to use prepared statements with parameterized queries for the a_name parameter
• Consider taking the CMS offline until a secure alternative can be implemented
• Implement input validation on the web server or reverse proxy level as an additional defense layer

# Example: Block access to cms_admin.php via .htaccess
# Place in the web root directory
<Files "cms_admin.php">
    Order Deny,Allow
    Deny from all
    Allow from 192.168.1.0/24
</Files>