CVE-2025-14705
📋 TL;DR
This vulnerability allows remote attackers to execute arbitrary commands on Shiguangwu sgwbox N3 NAS devices through command injection in the SHARESERVER feature. Attackers can gain full system control by manipulating parameters. All users running version 2.0.25 are affected.
💻 Affected Systems
- Shiguangwu sgwbox N3
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to install malware, exfiltrate data, pivot to other systems, or render the device unusable.
Likely Case
Remote code execution leading to data theft, ransomware deployment, or unauthorized access to network resources.
If Mitigated
Limited impact if device is isolated from internet and internal networks with strict network segmentation.
🎯 Exploit Status
Public disclosure includes technical details. Remote exploitation without authentication makes this highly attractive to attackers.
🛠️ 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 replacement.
🔧 Temporary Workarounds
Disable SHARESERVER feature
allTurn off the vulnerable SHARESERVER component to prevent exploitation
Check device web interface for SHARESERVER settings and disable
Network isolation
linuxBlock all external access to the NAS device
iptables -A INPUT -p tcp --dport [NAS_PORTS] -j DROP
ufw deny from any to [NAS_IP]
🧯 If You Can't Patch
- Immediately disconnect device from internet and isolate on separate VLAN
- Implement strict firewall rules allowing only essential traffic from trusted sources
🔍 How to Verify
Check if Vulnerable:
Check device version in web interface or via SSH: cat /etc/version or similar version fileCheck Version:
Check device web admin interface or SSH into device and examine version filesVerify Fix Applied:
No official fix available. Verify workarounds by testing SHARESERVER access and confirming network isolation.📡 Detection & Monitoring
Log Indicators:
- Unusual command execution in system logs
- SHARESERVER access with suspicious parameters
- Unexpected process creation
Network Indicators:
- Inbound connections to NAS SHARESERVER ports with command-like strings in payloads
SIEM Query:
source="nas_logs" AND ("SHARESERVER" AND ("cmd" OR "exec" OR "system" OR suspicious characters))