UNKNOWN CVSS 5.8
Published: 2009-11-13

CVE-2009-3936

citrix online_plug-in_for_mac Security Advisory (CVE-2009-3936)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2009-3936 impacting citrix online_plug-in_for_mac. Evaluated with CVSS Base Score of 5.8 (UNKNOWN).

Original NVD Description

Source: NIST NVD
Unspecified vulnerability in Citrix Online Plug-in for Windows 11.0.x before 11.0.150 and 11.x before 11.2, Online Plug-in for Mac before 11.0, Receiver for iPhone before 1.0.3, and ICA Java, Mac, UNIX, and Windows Clients for XenApp and XenDesktop allows remote attackers to impersonate the SSL/TLS server and bypass authentication via a crafted certificate, a different vulnerability than CVE-2009-3555.

📊 CVSS v3.1 Metric Breakdown

Attack Vector
Network (AV:N)
Exploitable remotely across internet boundaries
Confidentiality
None (C:N)
No data confidentiality impact

🎯 Affected Versions Matrix

Affected Product citrix / online_plug-in_for_mac
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-2009-3936 impacting citrix online_plug-in_for_mac.

⚡ Nuclei Detection Template (YAML) cve-2009-3936.yaml
id: cve-2009-3936

info:
  name: citrix online_plug-in_for_mac - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: unknown
  description: |
    Automated signature & scanner for CVE-2009-3936 affecting citrix online_plug-in_for_mac.
    Evaluation: Unspecified vulnerability in Citrix Online Plug-in for Windows 11.0.x before 11.0.150 and 11.x before 11.2, Online Plug-in for Mac before 11.0, Receiv...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2009-3936
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:M/Au:N/C:N/I:P/A:P
    cvss-score: 5.8
    cve-id: CVE-2009-3936
    cwe-id: CWE-310
  tags: cve,cve-2009-3936,citrix,online_plug-in_for_mac,unknown

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "online_plug-in_for_mac"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2009-3936.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2009-3936
# Target: citrix online_plug-in_for_mac | CVSS: 5.8 (UNKNOWN)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2009-3936 (citrix online_plug-in_for_mac)...")
    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 citrix online_plug-in_for_mac 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-2009-3936.sh
# Recommended Remediation & Patching Commands for CVE-2009-3936
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install online_plug-in_for_mac 2>/dev/null || \
sudo dnf upgrade online_plug-in_for_mac 2>/dev/null || \
sudo yum update online_plug-in_for_mac

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

# 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

❓ Frequently Asked Questions (FAQ) & Remediation Guide

How do I fix CVE-2009-3936 in citrix online_plug-in_for_mac?

Review vendor-specific security notices and update citrix online_plug-in_for_mac 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-2009-3936?

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-2009-3936?

CVE-2009-3936 is classified with a CVSS 3.1 Base Score of 5.8 (UNKNOWN). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
5.8
UNKNOWN SEVERITY
CVE ID CVE-2009-3936
Weakness CWE-310
Vendor citrix
Product online_plug-in_for_mac
Published 2009-11-13
Vector AV:N/AC:M/Au:N/C:N/I:P/A:P