HIGH CVSS 7.8
Published: 2020-11-12

CVE-2019-11121

intel media_sdk Security Advisory (CVE-2019-11121)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2019-11121 impacting intel media_sdk. Evaluated with CVSS Base Score of 7.8 (HIGH).

Original NVD Description

Source: NIST NVD
Improper file permissions in the installer for the Intel(R) Media SDK for Windows before version 2019 R1 may allow an authenticated user to potentially enable escalation of privilege via local access.

📊 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
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
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 intel / media_sdk
Affected Versions 2018
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-2019-11121 impacting intel media_sdk.

⚡ Nuclei Detection Template (YAML) cve-2019-11121.yaml
id: cve-2019-11121

info:
  name: intel media_sdk - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: high
  description: |
    Automated signature & scanner for CVE-2019-11121 affecting intel media_sdk.
    Evaluation: Improper file permissions in the installer for the Intel(R) Media SDK for Windows before version 2019 R1 may allow an authenticated user to potentiall...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2019-11121
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 7.8
    cve-id: CVE-2019-11121
    cwe-id: CWE-732
  tags: cve,cve-2019-11121,intel,media_sdk,high

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "media_sdk"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2019-11121.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2019-11121
# Target: intel media_sdk | CVSS: 7.8 (HIGH)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2019-11121 (intel media_sdk)...")
    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 intel media_sdk scope (2018).")
        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-2019-11121.sh
# Recommended Remediation & Patching Commands for CVE-2019-11121
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install media_sdk 2>/dev/null || \
sudo dnf upgrade media_sdk 2>/dev/null || \
sudo yum update media_sdk

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

# 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-2019-11121 in intel media_sdk?

Review vendor-specific security notices and update intel media_sdk 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-2019-11121?

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-2019-11121?

CVE-2019-11121 is classified with a CVSS 3.1 Base Score of 7.8 (HIGH). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
7.8
HIGH SEVERITY
CVE ID CVE-2019-11121
Weakness CWE-732
Vendor intel
Product media_sdk
Published 2020-11-12
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H