CVE-2024-13088

7.8 HIGH

📋 TL;DR

An improper authentication vulnerability in QNAP QHora routers allows attackers with local network access to bypass authentication mechanisms and compromise system security. This affects QNAP QHora router users running vulnerable firmware versions. Attackers can potentially gain unauthorized access to router administration functions.

💻 Affected Systems

Products:
  • QNAP QHora routers
Versions: All versions before QuRouter 2.5.0.140
Operating Systems: QTS-based router firmware
Default Config Vulnerable: ⚠️ Yes
Notes: Affects all QHora routers with default configurations. Requires attacker to have local network access.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete compromise of router configuration, ability to intercept network traffic, install backdoors, or pivot to other internal systems.

🟠

Likely Case

Unauthorized access to router admin panel, modification of network settings, DNS hijacking, or credential theft.

🟢

If Mitigated

Limited impact due to network segmentation, strong perimeter controls, and monitoring of authentication attempts.

🌐 Internet-Facing: LOW (requires local network access for exploitation)
🏢 Internal Only: HIGH (attackers on local network can exploit without authentication)

🎯 Exploit Status

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

Vulnerability allows authentication bypass without credentials. Exploitation requires local network access but no authentication.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: QuRouter 2.5.0.140 and later

Vendor Advisory: https://www.qnap.com/en/security-advisory/qsa-25-15

Restart Required: Yes

Instructions:

1. Log into QHora admin interface. 2. Navigate to System > Firmware Update. 3. Check for updates and install QuRouter 2.5.0.140 or later. 4. Reboot the router after installation completes.

🔧 Temporary Workarounds

Network segmentation

all

Isolate QHora router management interface to separate VLAN with strict access controls

Access restriction

all

Implement IP whitelisting for router admin interface and disable remote management

🧯 If You Can't Patch

  • Implement strict network segmentation to isolate QHora from untrusted devices
  • Enable detailed logging of authentication attempts and monitor for suspicious access patterns

🔍 How to Verify

Check if Vulnerable:

Check firmware version in QHora admin interface under System > Firmware Update

Check Version:

Not applicable - check via web interface only

Verify Fix Applied:

Confirm firmware version is 2.5.0.140 or higher in admin interface

📡 Detection & Monitoring

Log Indicators:

  • Failed authentication attempts followed by successful access
  • Unusual admin login times or source IPs
  • Configuration changes from unexpected sources

Network Indicators:

  • Unusual traffic to router admin interface
  • DNS configuration changes
  • Unexpected outbound connections from router

SIEM Query:

source="qnap-router" AND (event_type="authentication" AND result="success") AND NOT src_ip IN [admin_whitelist]

🔗 References

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