HIGH CVSS 8.8
Published: 2021-03-23

CVE-2021-28819

tibco ftl Security Advisory (CVE-2021-28819)
↗ Official NIST NVD Record
Seeking technical exploit breakdowns or verified PoC code for CVE-2021-28819?
🔬 Search Writeups & Exploit Archive →

CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2021-28819 impacting tibco ftl. Evaluated with CVSS Base Score of 8.8 (HIGH).

Original NVD Description

Source: NIST NVD
The Windows Installation component of TIBCO Software Inc.'s TIBCO FTL - Community Edition, TIBCO FTL - Developer Edition, and TIBCO FTL - Enterprise Edition contains a vulnerability that theoretically allows a low privileged attacker with local access on some versions of the Windows operating system to insert malicious software. The affected component can be abused to execute the malicious software inserted by the attacker with the elevated privileges of the component. This vulnerability results from a lack of access restrictions on certain files and/or folders in the installation. Affected releases are TIBCO Software Inc.'s TIBCO FTL - Community Edition: versions 6.5.0 and below, TIBCO FTL - Developer Edition: versions 6.5.0 and below, and TIBCO FTL - Enterprise Edition: versions 6.5.0 and below.

📊 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
Changed (S:C)
Impacts components beyond caller authority
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 tibco / ftl
Affected Versions *
Weakness Enumeration CWE-863

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-2021-28819 impacting tibco ftl.

⚡ Nuclei Detection Template (YAML) cve-2021-28819.yaml
id: cve-2021-28819

info:
  name: tibco ftl - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: high
  description: |
    Automated signature & scanner for CVE-2021-28819 affecting tibco ftl.
    Evaluation: The Windows Installation component of TIBCO Software Inc.'s TIBCO FTL - Community Edition, TIBCO FTL - Developer Edition, and TIBCO FTL - Enterpr...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2021-28819
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
    cvss-score: 8.8
    cve-id: CVE-2021-28819
    cwe-id: CWE-863
  tags: cve,cve-2021-28819,tibco,ftl,high

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "ftl"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2021-28819.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2021-28819
# Target: tibco ftl | CVSS: 8.8 (HIGH)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2021-28819 (tibco ftl)...")
    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 tibco ftl 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-2021-28819.sh
# Recommended Remediation & Patching Commands for CVE-2021-28819
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install ftl 2>/dev/null || \
sudo dnf upgrade ftl 2>/dev/null || \
sudo yum update ftl

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

# 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-2021-28819 in tibco ftl?

Review vendor-specific security notices and update tibco ftl 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-2021-28819?

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-2021-28819?

CVE-2021-28819 is classified with a CVSS 3.1 Base Score of 8.8 (HIGH). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
8.8
HIGH SEVERITY
CVE ID CVE-2021-28819
Weakness CWE-863
Vendor tibco
Product ftl
Published 2021-03-23
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H