CVE-2025-68916
📋 TL;DR
This vulnerability allows attackers to perform directory traversal through the certsupload.cgi endpoint in Riello UPS NetMan 208 Application, enabling arbitrary file upload and subsequent remote code execution. Organizations using affected versions of this UPS management software are at risk, particularly those with internet-facing instances.
💻 Affected Systems
- Riello UPS NetMan 208 Application
📦 What is this software?
Netman 208 by Riello Ups
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with attacker gaining root/administrator privileges, installing persistent backdoors, stealing credentials, and pivoting to other network systems.
Likely Case
Unauthenticated attackers upload malicious files to execute arbitrary commands, potentially disrupting UPS operations, modifying configurations, or establishing footholds for further attacks.
If Mitigated
With proper network segmentation and access controls, impact limited to the UPS management system itself without lateral movement to critical infrastructure.
🎯 Exploit Status
The GitHub reference contains proof-of-concept code demonstrating the directory traversal and file upload vulnerability. Exploitation requires minimal technical skill.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version 1.12 or later
Vendor Advisory: https://github.com/gerico-lab/riello-multiple-vulnerabilities-2025
Restart Required: Yes
Instructions:
1. Download Riello UPS NetMan 208 Application version 1.12 or later from official vendor sources. 2. Backup current configuration. 3. Install the updated version following vendor documentation. 4. Restart the NetMan application service. 5. Verify the update was successful.
🔧 Temporary Workarounds
Network Access Restriction
linuxBlock external access to the NetMan web interface using firewall rules
iptables -A INPUT -p tcp --dport 80 -s trusted_network -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -s trusted_network -j ACCEPT
iptables -A INPUT -p tcp --dport 80 -j DROP
iptables -A INPUT -p tcp --dport 443 -j DROP
CGI Endpoint Disable
linuxRemove or restrict access to the vulnerable certsupload.cgi file
mv /path/to/cgi-bin/certsupload.cgi /path/to/cgi-bin/certsupload.cgi.disabled
chmod 000 /path/to/cgi-bin/certsupload.cgi.disabled
🧯 If You Can't Patch
- Implement strict network segmentation to isolate UPS management systems from production networks
- Deploy web application firewall (WAF) rules to block directory traversal patterns and unauthorized file uploads
🔍 How to Verify
Check if Vulnerable:
Check if certsupload.cgi exists in the cgi-bin directory and test for directory traversal using ../ sequences in file upload parametersCheck Version:
Check the web interface login page or admin panel for version information, or examine application files for version metadataVerify Fix Applied:
Verify the application version is 1.12 or higher and test that directory traversal attempts are properly rejected📡 Detection & Monitoring
Log Indicators:
- Unusual file upload attempts to certsupload.cgi
- HTTP requests containing ../ sequences
- Unexpected process execution from web server context
Network Indicators:
- POST requests to /cgi-bin/certsupload.cgi with traversal patterns
- Unusual outbound connections from UPS management system
SIEM Query:
source="web_logs" AND (uri="/cgi-bin/certsupload.cgi" OR uri CONTAINS "../") AND (method="POST" OR method="PUT")