CVE-2025-20055
📋 TL;DR
This CVE describes an OS command injection vulnerability in Y'S corporation STEALTHONE D220/D340 network storage servers. Attackers who can access these devices can execute arbitrary operating system commands with potentially full system control. Organizations using these specific storage servers are affected.
💻 Affected Systems
- STEALTHONE D220
- STEALTHONE D340
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to execute arbitrary commands as root/admin, steal all stored data, install persistent backdoors, pivot to other network systems, or render the storage device inoperable.
Likely Case
Data exfiltration, ransomware deployment, or using the compromised storage server as a foothold for lateral movement within the network.
If Mitigated
Limited impact if network segmentation prevents lateral movement and regular backups exist, though the affected device would still be compromised.
🎯 Exploit Status
The description states 'an attacker who can access the affected product' suggesting some level of access is required, but OS command injection vulnerabilities typically have low exploitation complexity once access is obtained.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: v6.03.03 for D220/D340, v7.00.11 for D440
Restart Required: Yes
Instructions:
1. Download the firmware update from the vendor website. 2. Backup all data and configurations. 3. Apply the firmware update through the device's management interface. 4. Reboot the device as required by the update process. 5. Verify the firmware version after reboot.
🔧 Temporary Workarounds
Network Segmentation
allIsolate affected storage servers from untrusted networks and limit access to authorized management systems only.
Access Control Restrictions
allImplement strict access controls, multi-factor authentication, and limit administrative access to the management interface.
🧯 If You Can't Patch
- Immediately isolate the affected devices from all networks except necessary management access
- Implement strict network monitoring and alerting for any unusual access patterns or command execution attempts
🔍 How to Verify
Check if Vulnerable:
Check the firmware version in the device's management interface. If version is below v6.03.03 for D220/D340 or below v7.00.11 for D440, the device is vulnerable.Check Version:
Check via the device's web management interface or SSH console (if available) for firmware version information.Verify Fix Applied:
After applying the firmware update, verify the version shows v6.03.03 or higher for D220/D340, or v7.00.11 or higher for D440 in the management interface.📡 Detection & Monitoring
Log Indicators:
- Unusual command execution patterns in system logs
- Multiple failed authentication attempts followed by successful access
- Unexpected system processes or services running
Network Indicators:
- Unusual outbound connections from storage servers
- Unexpected protocols or ports being accessed
- Traffic patterns inconsistent with normal storage operations
SIEM Query:
source="storage_server" AND (event_type="command_execution" OR process_name NOT IN ("normal_process1","normal_process2"))