HIGH CVSS 7.5
Published: 2020-11-06

CVE-2020-5645

mitsubishielectric coreos Security Advisory (CVE-2020-5645)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2020-5645 impacting mitsubishielectric coreos. Evaluated with CVSS Base Score of 7.5 (HIGH).

Original NVD Description

Source: NIST NVD
Session fixation vulnerability in TCP/IP function included in the firmware of GT14 Model of GOT 1000 series (GT1455-QTBDE CoreOS version "05.65.00.BD" and earlier, GT1450-QMBDE CoreOS version "05.65.00.BD" and earlier, GT1450-QLBDE CoreOS version "05.65.00.BD" and earlier, GT1455HS-QTBDE CoreOS version "05.65.00.BD" and earlier, and GT1450HS-QMBDE CoreOS version "05.65.00.BD" and earlier) allows a remote unauthenticated attacker to stop the network functions of the products via a specially crafted packet.

📊 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
None (C:N)
No data confidentiality impact
Integrity
None (I:N)
No system modification impact
Availability
High (A:H)
Total denial of service or shutdown

🎯 Affected Versions Matrix

Affected Product mitsubishielectric / coreos
Affected Versions *
Weakness Enumeration CWE-384

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-2020-5645 impacting mitsubishielectric coreos.

⚡ Nuclei Detection Template (YAML) cve-2020-5645.yaml
id: cve-2020-5645

info:
  name: mitsubishielectric coreos - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: high
  description: |
    Automated signature & scanner for CVE-2020-5645 affecting mitsubishielectric coreos.
    Evaluation: Session fixation vulnerability in TCP/IP function included in the firmware of GT14 Model of GOT 1000 series (GT1455-QTBDE CoreOS version "05.65.0...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2020-5645
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    cvss-score: 7.5
    cve-id: CVE-2020-5645
    cwe-id: CWE-384
  tags: cve,cve-2020-5645,mitsubishielectric,coreos,high

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "coreos"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2020-5645.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2020-5645
# Target: mitsubishielectric coreos | 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-2020-5645 (mitsubishielectric coreos)...")
    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 mitsubishielectric coreos 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-2020-5645.sh
# Recommended Remediation & Patching Commands for CVE-2020-5645
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install coreos 2>/dev/null || \
sudo dnf upgrade coreos 2>/dev/null || \
sudo yum update coreos

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

# 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.

❓ Frequently Asked Questions (FAQ) & Remediation Guide

How do I fix CVE-2020-5645 in mitsubishielectric coreos?

Review vendor-specific security notices and update mitsubishielectric coreos 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-2020-5645?

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-2020-5645?

CVE-2020-5645 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-2020-5645
Weakness CWE-384
Vendor mitsubishielectric
Product coreos
Published 2020-11-06
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H