CVE-2024-0729: ForU CMS SQL Injection Vulnerability

CVE-2024-0729 Overview

CVE-2024-0729 is a SQL injection vulnerability in ForU CMS versions up to 2020-06-23. The flaw resides in the cms_admin.php file, where the a_name argument is not properly sanitized before being incorporated into a database query. Remote attackers can manipulate this parameter to inject arbitrary SQL statements. The vulnerability has been publicly disclosed under VulDB identifier VDB-251552, and exploit details are available. The weakness is classified as [CWE-89] Improper Neutralization of Special Elements used in an SQL Command.

Critical Impact
Unauthenticated remote attackers can inject SQL commands through the a_name parameter in cms_admin.php, leading to full compromise of database confidentiality, integrity, and availability.

Affected Products

ForU CMS up to and including the 2020-06-23 release
Deployments exposing cms_admin.php to untrusted networks
Web stacks using the vulnerable a_name parameter handler

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

The vulnerability is a classic SQL injection flaw in the administrative interface of ForU CMS. The cms_admin.php script accepts an a_name parameter and concatenates its value into a SQL query without parameterization or input validation. Attackers can supply crafted input containing SQL syntax to break out of the intended query context.

Successful exploitation allows reading sensitive database content, modifying records, or executing administrative SQL operations. Because the attack vector is network-based and requires no authentication or user interaction, exploitation can be fully automated against exposed instances.

The EPSS probability is low at the time of writing, but public disclosure of exploit details elevates the practical risk for any internet-facing deployment.

Root Cause

The root cause is missing input sanitization and the use of dynamic SQL construction with attacker-controlled values. The a_name argument flows directly into a SQL statement, allowing the attacker to alter query structure. Parameterized queries or prepared statements would prevent the injection.

Attack Vector

An attacker sends an HTTP request to cms_admin.php with a malicious a_name value. The injected payload terminates the original query clause and appends attacker-controlled SQL, such as UNION SELECT statements to exfiltrate credentials or stacked queries to alter data. No prior authentication is required.

No verified proof-of-concept code is reproduced here. Technical analysis is published in the GitHub LFI Vulnerability Report and the VulDB #251552 entry.

Detection Methods for CVE-2024-0729

Indicators of Compromise

HTTP requests to cms_admin.php containing SQL metacharacters such as ', --, UNION, or SELECT inside the a_name parameter
Unexpected database error messages returned by the CMS in web server logs
New or modified administrator accounts in the ForU CMS database
Outbound database connections or large result sets from the CMS application user

Detection Strategies

Inspect web server access logs for anomalous a_name values targeting cms_admin.php
Deploy web application firewall (WAF) rules that match common SQL injection patterns against the affected endpoint
Enable database query logging and alert on unions, comments, or multi-statement queries originating from the CMS service account
Correlate authentication failures and administrative privilege changes following suspicious requests

Monitoring Recommendations

Forward web server and database logs to a centralized analytics platform for retention and correlation
Baseline normal request patterns to cms_admin.php and alert on deviations in parameter length or character distribution
Monitor for egress traffic from the CMS host to unfamiliar destinations, which can indicate data exfiltration

How to Mitigate CVE-2024-0729

Immediate Actions Required

Restrict network access to cms_admin.php using IP allowlists or VPN-only access for administrators
Deploy WAF signatures that block SQL injection payloads targeting the a_name parameter
Audit the ForU CMS database for unauthorized accounts, modified content, or signs of prior exploitation
Rotate database credentials and administrator passwords if exposure is suspected

Patch Information

No vendor patch is referenced in the NVD record for ForU CMS as of the last modified date of 2024-11-21. Organizations should consult the VulDB #251552 advisory for the latest mitigation guidance and consider migrating to an actively maintained CMS platform.

Workarounds

Place the application behind a reverse proxy enforcing strict input validation on the a_name parameter
Run the database account used by ForU CMS with least-privilege permissions to limit injection impact
Disable or remove cms_admin.php if the administrative functionality is not required in the deployment
Apply virtual patching via WAF rules until the application can be replaced or remediated at the source

bash

# Example ModSecurity rule to block SQL injection in the a_name parameter
SecRule ARGS:a_name "@detectSQLi" \
    "id:1002024,phase:2,deny,status:403,\
    msg:'CVE-2024-0729 ForU CMS SQLi attempt blocked',\
    logdata:'Matched a_name=%{ARGS.a_name}'"