CVE-2025-14108

8.8 HIGH

📋 TL;DR

This vulnerability allows remote attackers to execute arbitrary commands on ZSPACE Q2C NAS devices by exploiting a command injection flaw in the file management API. Attackers can manipulate the 'safe_dir' parameter in HTTP POST requests to inject and execute system commands. All users running affected versions of ZSPACE Q2C NAS are vulnerable.

💻 Affected Systems

Products:
  • ZSPACE Q2C NAS
Versions: Up to version 1.1.0210050
Operating Systems: NAS-specific OS
Default Config Vulnerable: ⚠️ Yes
Notes: All default configurations are vulnerable as the flaw exists in core API functionality.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system compromise allowing attackers to execute arbitrary commands with system privileges, potentially leading to data theft, ransomware deployment, or creation of persistent backdoors.

🟠

Likely Case

Remote code execution allowing attackers to gain shell access, exfiltrate sensitive data, or use the compromised device as a pivot point for further network attacks.

🟢

If Mitigated

If proper network segmentation and access controls are in place, impact may be limited to the NAS device itself without lateral movement to other systems.

🌐 Internet-Facing: HIGH
🏢 Internal Only: HIGH

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: CONFIRMED
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Exploit code is publicly available and requires no authentication, making this easily weaponizable.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Not yet released

Vendor Advisory: Not available

Restart Required: Yes

Instructions:

1. Monitor vendor announcements for patch release. 2. Apply patch immediately when available. 3. Restart NAS device after patching.

🔧 Temporary Workarounds

Network Access Restriction

linux

Block external access to the vulnerable API endpoint

iptables -A INPUT -p tcp --dport 80 -m string --string '/v2/file/safe/open' --algo bm -j DROP
iptables -A INPUT -p tcp --dport 443 -m string --string '/v2/file/safe/open' --algo bm -j DROP

Disable Vulnerable API

all

Temporarily disable the affected API endpoint if possible

Check NAS web interface for API management options

🧯 If You Can't Patch

  • Isolate the NAS device on a separate VLAN with strict firewall rules
  • Implement network-based intrusion detection to monitor for exploitation attempts

🔍 How to Verify

Check if Vulnerable:

Check NAS web interface for version number or run: cat /etc/version on the device

Check Version:

Check web interface or SSH to device and run: cat /etc/version

Verify Fix Applied:

Verify version is above 1.1.0210050 after vendor patch is applied

📡 Detection & Monitoring

Log Indicators:

  • HTTP POST requests to /v2/file/safe/open with unusual safe_dir parameters
  • Unusual command execution in system logs
  • Failed authentication attempts followed by API access

Network Indicators:

  • HTTP POST requests containing shell metacharacters in safe_dir parameter
  • Outbound connections from NAS to unusual external IPs

SIEM Query:

source="nas_logs" AND (url="/v2/file/safe/open" AND (safe_dir="*;*" OR safe_dir="*|*" OR safe_dir="*`*"))

🔗 References

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