HIGH CVSS 8.2
Published: 2022-10-14

CVE-2022-28759

zoom zoom_on-premise_meeting_connector_mmr Security Advisory (CVE-2022-28759)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2022-28759 impacting zoom zoom_on-premise_meeting_connector_mmr. Evaluated with CVSS Base Score of 8.2 (HIGH).

Original NVD Description

Source: NIST NVD
Zoom On-Premise Meeting Connector MMR before version 4.8.20220815.130 contains an improper access control vulnerability. As a result, a malicious actor could obtain the audio and video feed of a meeting they were not authorized to join and cause other meeting disruptions.

📊 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
High (C:H)
Total information disclosure
Integrity
Low (I:L)
Partial data modification possible
Availability
None (A:N)
No system availability impact

🎯 Affected Versions Matrix

Affected Product zoom / zoom_on-premise_meeting_connector_mmr
Affected Versions *
Weakness Enumeration CWE-284

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-2022-28759 impacting zoom zoom_on-premise_meeting_connector_mmr.

⚡ Nuclei Detection Template (YAML) cve-2022-28759.yaml
id: cve-2022-28759

info:
  name: zoom zoom_on-premise_meeting_connector_mmr - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: high
  description: |
    Automated signature & scanner for CVE-2022-28759 affecting zoom zoom_on-premise_meeting_connector_mmr.
    Evaluation: Zoom On-Premise Meeting Connector MMR before version 4.8.20220815.130 contains an improper access control vulnerability. As a result, a malicious acto...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2022-28759
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
    cvss-score: 8.2
    cve-id: CVE-2022-28759
    cwe-id: CWE-284
  tags: cve,cve-2022-28759,zoom,zoom_on-premise_meeting_c,high

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "zoom_on-premise_meeting_connector_mmr"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2022-28759.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2022-28759
# Target: zoom zoom_on-premise_meeting_connector_mmr | CVSS: 8.2 (HIGH)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2022-28759 (zoom zoom_on-premise_meeting_connector_mmr)...")
    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 zoom zoom_on-premise_meeting_connector_mmr 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-2022-28759.sh
# Recommended Remediation & Patching Commands for CVE-2022-28759
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install zoom_on-premise_meeting_c 2>/dev/null || \
sudo dnf upgrade zoom_on-premise_meeting_c 2>/dev/null || \
sudo yum update zoom_on-premise_meeting_c

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

# 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-2022-28759 in zoom zoom_on-premise_meeting_connector_mmr?

Review vendor-specific security notices and update zoom zoom_on-premise_meeting_connector_mmr 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-2022-28759?

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-2022-28759?

CVE-2022-28759 is classified with a CVSS 3.1 Base Score of 8.2 (HIGH). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
8.2
HIGH SEVERITY
CVE ID CVE-2022-28759
Weakness CWE-284
Vendor zoom
Product zoom_on-premise_meeting_connector_mmr
Published 2022-10-14
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N