UNKNOWN CVSS 7.1
Published: 2013-08-09

CVE-2012-3039

moxa oncell_gateway_firmware Security Advisory (CVE-2012-3039)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2012-3039 impacting moxa oncell_gateway_firmware. Evaluated with CVSS Base Score of 7.1 (UNKNOWN).

Original NVD Description

Source: NIST NVD
Moxa OnCell Gateway G3111, G3151, G3211, and G3251 devices with firmware before 1.4 do not use a sufficient source of entropy for SSH and SSL keys, which makes it easier for remote attackers to obtain access by leveraging knowledge of a key from a product installation elsewhere.

📊 CVSS v3.1 Metric Breakdown

Attack Vector
Network (AV:N)
Exploitable remotely across internet boundaries
Attack Complexity
High (AC:H)
Depends on race conditions or environment

🎯 Affected Versions Matrix

Affected Product moxa / oncell_gateway_firmware
Affected Versions *
Weakness Enumeration CWE-310

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-2012-3039 impacting moxa oncell_gateway_firmware.

⚡ Nuclei Detection Template (YAML) cve-2012-3039.yaml
id: cve-2012-3039

info:
  name: moxa oncell_gateway_firmware - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: unknown
  description: |
    Automated signature & scanner for CVE-2012-3039 affecting moxa oncell_gateway_firmware.
    Evaluation: Moxa OnCell Gateway G3111, G3151, G3211, and G3251 devices with firmware before 1.4 do not use a sufficient source of entropy for SSH and SSL keys, wh...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2012-3039
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:H/Au:S/C:C/I:C/A:C
    cvss-score: 7.1
    cve-id: CVE-2012-3039
    cwe-id: CWE-310
  tags: cve,cve-2012-3039,moxa,oncell_gateway_firmware,unknown

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "oncell_gateway_firmware"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2012-3039.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2012-3039
# Target: moxa oncell_gateway_firmware | CVSS: 7.1 (UNKNOWN)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2012-3039 (moxa oncell_gateway_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 moxa oncell_gateway_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-2012-3039.sh
# Recommended Remediation & Patching Commands for CVE-2012-3039
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install oncell_gateway_firmware 2>/dev/null || \
sudo dnf upgrade oncell_gateway_firmware 2>/dev/null || \
sudo yum update oncell_gateway_firmware

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

# 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-2012-3039 in moxa oncell_gateway_firmware?

Review vendor-specific security notices and update moxa oncell_gateway_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-2012-3039?

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-2012-3039?

CVE-2012-3039 is classified with a CVSS 3.1 Base Score of 7.1 (UNKNOWN). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
7.1
UNKNOWN SEVERITY
CVE ID CVE-2012-3039
Weakness CWE-310
Vendor moxa
Product oncell_gateway_firmware
Published 2013-08-09
Vector AV:N/AC:H/Au:S/C:C/I:C/A:C