UNKNOWN CVSS 9.3
Published: 2010-08-11

CVE-2010-2991

citrix online_plug-in_for_windows_for_xenapp_\&_xendesktop Security Advisory (CVE-2010-2991)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2010-2991 impacting citrix online_plug-in_for_windows_for_xenapp_\&_xendesktop. Evaluated with CVSS Base Score of 9.3 (UNKNOWN).

Original NVD Description

Source: NIST NVD
The IICAClient interface in the ICAClient library in the ICA Client ActiveX Object (aka ICO) component in Citrix Online Plug-in for Windows for XenApp & XenDesktop before 12.0.3 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted HTML document that triggers the reading of a .ICA file.

📊 CVSS v3.1 Metric Breakdown

Attack Vector
Network (AV:N)
Exploitable remotely across internet boundaries

🎯 Affected Versions Matrix

Affected Product citrix / online_plug-in_for_windows_for_xenapp_\&_xendesktop
Affected Versions *
Weakness Enumeration CWE-94

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-2010-2991 impacting citrix online_plug-in_for_windows_for_xenapp_\&_xendesktop.

⚡ Nuclei Detection Template (YAML) cve-2010-2991.yaml
id: cve-2010-2991

info:
  name: citrix online_plug-in_for_windows_for_xenapp_\&_xendesktop - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: unknown
  description: |
    Automated signature & scanner for CVE-2010-2991 affecting citrix online_plug-in_for_windows_for_xenapp_\&_xendesktop.
    Evaluation: The IICAClient interface in the ICAClient library in the ICA Client ActiveX Object (aka ICO) component in Citrix Online Plug-in for Windows for XenApp...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2010-2991
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:M/Au:N/C:C/I:C/A:C
    cvss-score: 9.3
    cve-id: CVE-2010-2991
    cwe-id: CWE-94
  tags: cve,cve-2010-2991,citrix,online_plug-in_for_window,unknown

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "online_plug-in_for_windows_for_xenapp_\&_xendesktop"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2010-2991.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2010-2991
# Target: citrix online_plug-in_for_windows_for_xenapp_\&_xendesktop | CVSS: 9.3 (UNKNOWN)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2010-2991 (citrix online_plug-in_for_windows_for_xenapp_\&_xendesktop)...")
    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_windows_for_xenapp_\&_xendesktop 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-2010-2991.sh
# Recommended Remediation & Patching Commands for CVE-2010-2991
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install online_plug-in_for_window 2>/dev/null || \
sudo dnf upgrade online_plug-in_for_window 2>/dev/null || \
sudo yum update online_plug-in_for_window

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

# 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.

❓ Frequently Asked Questions (FAQ) & Remediation Guide

How do I fix CVE-2010-2991 in citrix online_plug-in_for_windows_for_xenapp_\&_xendesktop?

Review vendor-specific security notices and update citrix online_plug-in_for_windows_for_xenapp_\&_xendesktop 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-2010-2991?

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-2010-2991?

CVE-2010-2991 is classified with a CVSS 3.1 Base Score of 9.3 (UNKNOWN). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
9.3
UNKNOWN SEVERITY
CVE ID CVE-2010-2991
Weakness CWE-94
Vendor citrix
Product online_plug-in_for_windows_for_xenapp_\&_xendesktop
Published 2010-08-11
Vector AV:N/AC:M/Au:N/C:C/I:C/A:C