MEDIUM CVSS 6.5
Published: 2020-12-09

CVE-2020-7337

mcafee virusscan_enterprise Security Advisory (CVE-2020-7337)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2020-7337 impacting mcafee virusscan_enterprise. Evaluated with CVSS Base Score of 6.5 (MEDIUM).

Original NVD Description

Source: NIST NVD
Incorrect Permission Assignment for Critical Resource vulnerability in McAfee VirusScan Enterprise (VSE) prior to 8.8 Patch 16 allows local administrators to bypass local security protection through VSE not correctly integrating with Windows Defender Application Control via careful manipulation of the Code Integrity checks.

📊 CVSS v3.1 Metric Breakdown

Attack Vector
Local (AV:L)
Requires local system execution permissions
Attack Complexity
Low (AC:L)
No specialized conditions required
Privileges Required
High (PR:H)
Administrative credentials required
User Interaction
Required (UI:R)
User must click or open resource
Scope
Unchanged (S:U)
Confined to same security context
Confidentiality
High (C:H)
Total information disclosure
Integrity
High (I:H)
Total modification of target system
Availability
High (A:H)
Total denial of service or shutdown

🎯 Affected Versions Matrix

Affected Product mcafee / virusscan_enterprise
Affected Versions *
Weakness Enumeration CWE-732

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-2020-7337 impacting mcafee virusscan_enterprise.

⚡ Nuclei Detection Template (YAML) cve-2020-7337.yaml
id: cve-2020-7337

info:
  name: mcafee virusscan_enterprise - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: medium
  description: |
    Automated signature & scanner for CVE-2020-7337 affecting mcafee virusscan_enterprise.
    Evaluation: Incorrect Permission Assignment for Critical Resource vulnerability in McAfee VirusScan Enterprise (VSE) prior to 8.8 Patch 16 allows local administra...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2020-7337
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
    cvss-score: 6.5
    cve-id: CVE-2020-7337
    cwe-id: CWE-732
  tags: cve,cve-2020-7337,mcafee,virusscan_enterprise,medium

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "virusscan_enterprise"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2020-7337.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2020-7337
# Target: mcafee virusscan_enterprise | CVSS: 6.5 (MEDIUM)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2020-7337 (mcafee virusscan_enterprise)...")
    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 mcafee virusscan_enterprise 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-2020-7337.sh
# Recommended Remediation & Patching Commands for CVE-2020-7337
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install virusscan_enterprise 2>/dev/null || \
sudo dnf upgrade virusscan_enterprise 2>/dev/null || \
sudo yum update virusscan_enterprise

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

# 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-2020-7337 in mcafee virusscan_enterprise?

Review vendor-specific security notices and update mcafee virusscan_enterprise 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-2020-7337?

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-2020-7337?

CVE-2020-7337 is classified with a CVSS 3.1 Base Score of 6.5 (MEDIUM). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
6.5
MEDIUM SEVERITY
CVE ID CVE-2020-7337
Weakness CWE-732
Vendor mcafee
Product virusscan_enterprise
Published 2020-12-09
Vector CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H