CVE-2025-44015
📋 TL;DR
A command injection vulnerability in HybridDesk Station allows attackers with local network access to execute arbitrary commands on affected systems. This affects all HybridDesk Station installations before version 4.2.18. The vulnerability enables remote code execution within the local network environment.
💻 Affected Systems
- QNAP HybridDesk Station
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise allowing attacker to install malware, exfiltrate data, pivot to other systems, or establish persistent access.
Likely Case
Attacker gains shell access to execute commands, potentially leading to data theft, service disruption, or lateral movement within the network.
If Mitigated
Limited impact due to network segmentation, proper access controls, and monitoring preventing successful exploitation.
🎯 Exploit Status
Command injection vulnerabilities typically have low exploitation complexity once the attack vector is identified.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: HybridDesk Station 4.2.18 and later
Vendor Advisory: https://www.qnap.com/en/security-advisory/qsa-25-20
Restart Required: Yes
Instructions:
1. Log into QNAP NAS web interface. 2. Go to App Center. 3. Check for HybridDesk Station updates. 4. Update to version 4.2.18 or later. 5. Restart the HybridDesk Station service or reboot the NAS.
🔧 Temporary Workarounds
Network Segmentation
allIsolate QNAP NAS devices from untrusted networks and limit access to authorized users only.
Disable HybridDesk Station
linuxTemporarily disable HybridDesk Station if not required for operations.
ssh admin@qnap-nas 'sudo /etc/init.d/hybriddesk stop'
🧯 If You Can't Patch
- Implement strict network access controls to limit who can reach the QNAP NAS on the local network
- Enable detailed logging and monitoring for suspicious command execution attempts on the NAS
🔍 How to Verify
Check if Vulnerable:
Check HybridDesk Station version in QNAP App Center or via SSH: hybriddesk --versionCheck Version:
ssh admin@qnap-nas 'hybriddesk --version'Verify Fix Applied:
Confirm HybridDesk Station version is 4.2.18 or higher in App Center or via command line📡 Detection & Monitoring
Log Indicators:
- Unusual command execution in system logs
- Suspicious process creation from HybridDesk Station
- Failed authentication attempts followed by command execution
Network Indicators:
- Unexpected outbound connections from QNAP NAS
- Suspicious network traffic to/from NAS on unusual ports
SIEM Query:
source="qnap-nas-logs" AND (process="hybriddesk" AND command="*;*" OR command="*|*" OR command="*`*" OR command="*$(*")