CVE-2024-44758
📋 TL;DR
This vulnerability allows attackers to upload arbitrary files to the NUS-M9 ERP Management Software via the /Production/UploadFile endpoint. Successful exploitation enables remote code execution, potentially compromising the entire system. Organizations using NUS-M9 ERP Management Software v3.0.0 are affected.
💻 Affected Systems
- NUS-M9 ERP Management Software
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise leading to data theft, ransomware deployment, lateral movement within the network, and persistent backdoor installation.
Likely Case
Webshell deployment allowing unauthorized access, data exfiltration, and further exploitation of internal systems.
If Mitigated
File upload attempts are blocked or quarantined, preventing code execution while maintaining system functionality.
🎯 Exploit Status
Public proof-of-concept code is available in GitHub repositories, making exploitation straightforward for attackers.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Unknown
Restart Required: No
Instructions:
No official patch is currently available. Monitor the vendor's website for security updates.
🔧 Temporary Workarounds
Web Application Firewall (WAF) Rules
allBlock requests to the vulnerable /Production/UploadFile endpoint and filter file uploads by extension and content type.
WAF-specific configuration commands vary by vendor
File Upload Restrictions
linuxConfigure the web server to reject file uploads to the vulnerable endpoint or restrict uploads to specific file types.
nginx: location ~ ^/Production/UploadFile { deny all; }
Apache: <Location "/Production/UploadFile"> Require all denied </Location>
🧯 If You Can't Patch
- Isolate the NUS-M9 ERP system from the internet and restrict network access to authorized users only.
- Implement strict file upload validation on the application layer, including file type verification and content inspection.
🔍 How to Verify
Check if Vulnerable:
Attempt to upload a test file (e.g., .txt) to http://[target]/Production/UploadFile and check if it's accepted without proper validation.Check Version:
Check the software's admin interface or configuration files for version information.Verify Fix Applied:
Verify that file uploads to the vulnerable endpoint are blocked or properly validated, and test with malicious file types.📡 Detection & Monitoring
Log Indicators:
- HTTP POST requests to /Production/UploadFile with unusual file extensions
- File upload attempts with executable content
Network Indicators:
- Unusual outbound connections from the ERP server following file uploads
- Traffic patterns indicating webshell communication
SIEM Query:
source="web_logs" AND uri="/Production/UploadFile" AND (file_extension="php" OR file_extension="jsp" OR file_extension="asp")