CVE-2024-9916
📋 TL;DR
This critical vulnerability in HuangDou UTCMS V9 allows remote attackers to execute arbitrary operating system commands through command injection in the 'o' parameter of the cli.php file. Attackers can compromise affected systems to gain unauthorized access and control. All systems running vulnerable versions of UTCMS V9 are affected.
💻 Affected Systems
- HuangDou UTCMS
📦 What is this software?
Usualtoolcms by Usualtool
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to execute arbitrary commands, steal sensitive data, install malware, pivot to other systems, and maintain persistent access.
Likely Case
Remote code execution leading to web server compromise, data exfiltration, and potential ransomware deployment on affected systems.
If Mitigated
Limited impact with proper input validation, command sanitization, and network segmentation preventing lateral movement.
🎯 Exploit Status
Exploit details are publicly available and the vulnerability is remotely exploitable without authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available
Restart Required: No
Instructions:
No official patch available. Vendor has not responded to disclosure. Consider workarounds or migrating to alternative software.
🔧 Temporary Workarounds
Remove vulnerable file
linuxDelete or rename the vulnerable cli.php file to prevent exploitation
rm /path/to/app/modules/ut-cac/admin/cli.php
mv /path/to/app/modules/ut-cac/admin/cli.php /path/to/app/modules/ut-cac/admin/cli.php.bak
Implement input validation
allAdd strict input validation and sanitization for the 'o' parameter in cli.php
🧯 If You Can't Patch
- Implement strict network segmentation to isolate UTCMS systems from critical infrastructure
- Deploy web application firewall (WAF) with command injection protection rules
🔍 How to Verify
Check if Vulnerable:
Check if file exists: ls -la /path/to/app/modules/ut-cac/admin/cli.phpCheck Version:
Check UTCMS version in configuration files or admin panelVerify Fix Applied:
Verify file removal: test ! -f /path/to/app/modules/ut-cac/admin/cli.php📡 Detection & Monitoring
Log Indicators:
- Unusual command execution in web server logs
- Suspicious parameters containing shell metacharacters in cli.php requests
- Unexpected system commands from web server process
Network Indicators:
- HTTP requests to cli.php with shell commands in parameters
- Outbound connections from web server to unexpected destinations
SIEM Query:
source="web_server" AND uri="*cli.php*" AND (param="*;*" OR param="*|*" OR param="*`*" OR param="*$(*")