MEDIUM CVSS 6.5
Published: 2017-03-14

CVE-2016-8005

mcafee email_gateway Security Advisory (CVE-2016-8005)
↗ Official NIST NVD Record
Seeking technical exploit breakdowns or verified PoC code for CVE-2016-8005?
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2016-8005 impacting mcafee email_gateway. Evaluated with CVSS Base Score of 6.5 (MEDIUM).

Original NVD Description

Source: NIST NVD
File extension filtering vulnerability in Intel Security McAfee Email Gateway (MEG) before 7.6.404h1128596 allows attackers to fail to identify the file name properly via scanning an email with a forged attached filename that uses a null byte within the filename extension.

📊 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
Low (PR:L)
Standard user access required
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
High (I:H)
Total modification of target system
Availability
None (A:N)
No system availability impact

🎯 Affected Versions Matrix

Affected Product mcafee / email_gateway
Affected Versions *
Weakness Enumeration CWE-264

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-2016-8005 impacting mcafee email_gateway.

⚡ Nuclei Detection Template (YAML) cve-2016-8005.yaml
id: cve-2016-8005

info:
  name: mcafee email_gateway - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: medium
  description: |
    Automated signature & scanner for CVE-2016-8005 affecting mcafee email_gateway.
    Evaluation: File extension filtering vulnerability in Intel Security McAfee Email Gateway (MEG) before 7.6.404h1128596 allows attackers to fail to identify the fi...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2016-8005
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
    cvss-score: 6.5
    cve-id: CVE-2016-8005
    cwe-id: CWE-264
  tags: cve,cve-2016-8005,mcafee,email_gateway,medium

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "email_gateway"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2016-8005.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2016-8005
# Target: mcafee email_gateway | 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-2016-8005 (mcafee email_gateway)...")
    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 email_gateway 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-2016-8005.sh
# Recommended Remediation & Patching Commands for CVE-2016-8005
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install email_gateway 2>/dev/null || \
sudo dnf upgrade email_gateway 2>/dev/null || \
sudo yum update email_gateway

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

# 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-2016-8005 in mcafee email_gateway?

Review vendor-specific security notices and update mcafee email_gateway 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-2016-8005?

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-2016-8005?

CVE-2016-8005 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-2016-8005
Weakness CWE-264
Vendor mcafee
Product email_gateway
Published 2017-03-14
Vector CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N