HIGH CVSS 7.5
Published: 2020-12-31

CVE-2018-19944

qnap qts Security Advisory (CVE-2018-19944)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2018-19944 impacting qnap qts. Evaluated with CVSS Base Score of 7.5 (HIGH).

Original NVD Description

Source: NIST NVD
A cleartext transmission of sensitive information vulnerability has been reported to affect certain QTS devices. If exploited, this vulnerability allows a remote attacker to gain access to sensitive information. QNAP have already fixed this vulnerability in the following versions: QTS 4.4.3.1354 build 20200702 (and later)

📊 CVSS v3.1 Metric Breakdown

Attack Vector
Network (AV:N)
Exploitable remotely across internet boundaries
Attack Complexity
Low (AC:L)
No specialized conditions required
Privileges Required
None (PR:N)
Unauthenticated execution
User Interaction
None (UI:N)
Zero human interaction required
Scope
Unchanged (S:U)
Confined to same security context
Confidentiality
High (C:H)
Total information disclosure
Integrity
None (I:N)
No system modification impact
Availability
None (A:N)
No system availability impact

🎯 Affected Versions Matrix

Affected Product qnap / qts
Affected Versions *
Weakness Enumeration CWE-311

Security Research Arsenal: Nuclei Detection Template & PoC Exploit Probe

High-Intent Research Tool

Ready-to-use security scanner signatures, active verification probe skeletons, and remediation playbooks for CVE-2018-19944 impacting qnap qts.

⚡ Nuclei Detection Template (YAML) cve-2018-19944.yaml
id: cve-2018-19944

info:
  name: qnap qts - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: high
  description: |
    Automated signature & scanner for CVE-2018-19944 affecting qnap qts.
    Evaluation: A cleartext transmission of sensitive information vulnerability has been reported to affect certain QTS devices. If exploited, this vulnerability allo...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2018-19944
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    cvss-score: 7.5
    cve-id: CVE-2018-19944
    cwe-id: CWE-311
  tags: cve,cve-2018-19944,qnap,qts,high

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "qts"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2018-19944.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2018-19944
# Target: qnap qts | CVSS: 7.5 (HIGH)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2018-19944 (qnap qts)...")
    headers = {
        "User-Agent": "CyberVault-Audit-Scanner/2.0",
        "Accept": "*/*"
    }
    try:
        r = requests.get(f"{target_url.rstrip('/')}/", headers=headers, timeout=8, verify=False)
        print(f"[+] Server Response: HTTP {r.status_code} | Server Banner: {r.headers.get('Server', 'Unknown')}")
        if r.status_code < 500:
            print(f"[!] Target reachable. Verify version against qnap qts scope (*).")
        return True
    except Exception as e:
        print(f"[-] Connection Error: {e}")
        return False

if __name__ == '__main__':
    url = sys.argv[1] if len(sys.argv) > 1 else "http://localhost:8080"
    verify_vulnerability(url)
🛡️ Quick Patch & Remediation Script (Bash) patch_cve-2018-19944.sh
# Recommended Remediation & Patching Commands for CVE-2018-19944
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install qts 2>/dev/null || \
sudo dnf upgrade qts 2>/dev/null || \
sudo yum update qts

# 2. Inspect installed package versions for vulnerable scope:
dpkg -l | grep -i qts 2>/dev/null || rpm -qa | grep -i qts

# 3. Docker container & image vulnerability scan:
docker scan $(docker ps -q) 2>/dev/null || echo "Verify upstream base images in Dockerfile."

🛡️ Remediation & Security Action

  • Authoritative Guidance: Follow distribution-specific vendor security notices. Advisory status and package patches vary by distribution release.
  • Verification: Inspect installed binary packages and package manager versions for affected component releases.
  • Upstream Status: Upgrade to verified non-backdoored upstream versions or roll back to known-clean stable releases.
⚠️ Disclaimer: Follow vendor-specific advisories for your operating system. CyberVault does not fabricate unsupported remediation scripts.

🔗 Verified Technical References

Authorities
  • No records filed in this category.
Distributions
  • No records filed in this category.

❓ Frequently Asked Questions (FAQ) & Remediation Guide

How do I fix CVE-2018-19944 in qnap qts?

Review vendor-specific security notices and update qnap qts packages to the latest patched release immediately. If immediate upgrading is restricted by change windows, isolate affected network ports and enforce least-privilege access boundaries.

Is there an active exploit or public PoC for CVE-2018-19944?

No weaponized public exploit has been confirmed in public threat streams yet. Continuous surveillance is active across GitHub and security feeds.

What is the CVSS 3.1 severity rating and impact for CVE-2018-19944?

CVE-2018-19944 is classified with a CVSS 3.1 Base Score of 7.5 (HIGH). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
7.5
HIGH SEVERITY
CVE ID CVE-2018-19944
Weakness CWE-311
Vendor qnap
Product qts
Published 2020-12-31
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N