HIGH CVSS 7.5
Published: 2022-11-22

CVE-2022-37301

schneider-electric modicon_m340_bmx_p34-2010_firmware Security Advisory (CVE-2022-37301)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2022-37301 impacting schneider-electric modicon_m340_bmx_p34-2010_firmware. Evaluated with CVSS Base Score of 7.5 (HIGH).

Original NVD Description

Source: NIST NVD
A CWE-191: Integer Underflow (Wrap or Wraparound) vulnerability exists that could cause a denial of service of the controller due to memory access violations when using the Modbus TCP protocol. Affected products: Modicon M340 CPU (part numbers BMXP34*)(V3.40 and prior), Modicon M580 CPU (part numbers BMEP* and BMEH*)(V3.22 and prior), Legacy Modicon Quantum/Premium(All Versions), Modicon Momentum MDI (171CBU*)(All Versions), Modicon MC80 (BMKC80)(V1.7 and prior)

📊 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 schneider-electric / modicon_m340_bmx_p34-2010_firmware
Affected Versions *
Weakness Enumeration CWE-191

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-2022-37301 impacting schneider-electric modicon_m340_bmx_p34-2010_firmware.

⚡ Nuclei Detection Template (YAML) cve-2022-37301.yaml
id: cve-2022-37301

info:
  name: schneider-electric modicon_m340_bmx_p34-2010_firmware - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: high
  description: |
    Automated signature & scanner for CVE-2022-37301 affecting schneider-electric modicon_m340_bmx_p34-2010_firmware.
    Evaluation: A CWE-191: Integer Underflow (Wrap or Wraparound) vulnerability exists that could cause a denial of service of the controller due to memory access vio...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2022-37301
  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-2022-37301
    cwe-id: CWE-191
  tags: cve,cve-2022-37301,schneider-electric,modicon_m340_bmx_p34-2010,high

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "modicon_m340_bmx_p34-2010_firmware"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2022-37301.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2022-37301
# Target: schneider-electric modicon_m340_bmx_p34-2010_firmware | 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-2022-37301 (schneider-electric modicon_m340_bmx_p34-2010_firmware)...")
    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 schneider-electric modicon_m340_bmx_p34-2010_firmware 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-2022-37301.sh
# Recommended Remediation & Patching Commands for CVE-2022-37301
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install modicon_m340_bmx_p34-2010 2>/dev/null || \
sudo dnf upgrade modicon_m340_bmx_p34-2010 2>/dev/null || \
sudo yum update modicon_m340_bmx_p34-2010

# 2. Inspect installed package versions for vulnerable scope:
dpkg -l | grep -i modicon_m340_bmx_p34-2010 2>/dev/null || rpm -qa | grep -i modicon_m340_bmx_p34-2010

# 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-2022-37301 in schneider-electric modicon_m340_bmx_p34-2010_firmware?

Review vendor-specific security notices and update schneider-electric modicon_m340_bmx_p34-2010_firmware 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-2022-37301?

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-2022-37301?

CVE-2022-37301 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-2022-37301
Weakness CWE-191
Vendor schneider-electric
Product modicon_m340_bmx_p34-2010_firmware
Published 2022-11-22
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H