CVE-2023-47562

7.4 HIGH

📋 TL;DR

This CVE describes an OS command injection vulnerability in QNAP Photo Station that allows authenticated users to execute arbitrary commands on the system. The vulnerability affects Photo Station installations before version 6.4.2, potentially enabling remote code execution by authenticated attackers.

💻 Affected Systems

Products:
  • QNAP Photo Station
Versions: All versions before 6.4.2
Operating Systems: QTS (QNAP Turbo NAS Operating System)
Default Config Vulnerable: ⚠️ Yes
Notes: Affects Photo Station installations on QNAP NAS devices. Requires authenticated access to exploit.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Full system compromise allowing attacker to execute arbitrary commands with the privileges of the Photo Station service, potentially leading to data theft, ransomware deployment, or lateral movement within the network.

🟠

Likely Case

Authenticated attackers gaining shell access to the QNAP device, allowing them to read sensitive files, modify configurations, or install malware.

🟢

If Mitigated

Limited impact if proper network segmentation and authentication controls prevent unauthorized access to Photo Station interfaces.

🌐 Internet-Facing: HIGH if Photo Station is exposed to the internet, as authenticated users could exploit it remotely.
🏢 Internal Only: MEDIUM for internal networks, requiring authenticated access but posing significant risk if credentials are compromised.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: LOW

Exploitation requires authenticated access to Photo Station. The vulnerability is in the CWE-77 category (Improper Neutralization of Special Elements used in a Command).

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Photo Station 6.4.2 (released 2023/12/15) and later

Vendor Advisory: https://www.qnap.com/en/security-advisory/qsa-24-08

Restart Required: Yes

Instructions:

1. Log into QNAP QTS web interface. 2. Open App Center. 3. Check for updates for Photo Station. 4. Update to version 6.4.2 or later. 5. Restart Photo Station service.

🔧 Temporary Workarounds

Disable Photo Station

all

Temporarily disable Photo Station service until patching is possible

In QTS App Center: Select Photo Station > Stop

Restrict network access

all

Block external access to Photo Station using firewall rules

In QTS Control Panel > Security > Firewall: Add rule to block Photo Station ports (default: 8080, 443)

🧯 If You Can't Patch

  • Implement strict network segmentation to isolate Photo Station from critical systems
  • Enforce strong authentication policies and monitor for suspicious login attempts

🔍 How to Verify

Check if Vulnerable:

Check Photo Station version in QTS App Center. If version is below 6.4.2, the system is vulnerable.

Check Version:

In QTS web interface: App Center > Installed Apps > Photo Station shows version number

Verify Fix Applied:

Verify Photo Station version shows 6.4.2 or higher in App Center after update.

📡 Detection & Monitoring

Log Indicators:

  • Unusual command execution patterns in system logs
  • Multiple failed authentication attempts followed by successful login
  • Unexpected process creation from Photo Station service

Network Indicators:

  • Unusual outbound connections from Photo Station server
  • Command and control traffic patterns

SIEM Query:

source="qnap_logs" AND (process="PhotoStation" OR service="photostation") AND (event="command_execution" OR event="shell")

🔗 References

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