HIGH CVSS 8.0
Published: 2021-03-09

CVE-2021-23273

tibco analytics_platform Security Advisory (CVE-2021-23273)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2021-23273 impacting tibco analytics_platform. Evaluated with CVSS Base Score of 8.0 (HIGH).

Original NVD Description

Source: NIST NVD
The Spotfire client component of TIBCO Software Inc.'s TIBCO Spotfire Analyst, TIBCO Spotfire Analytics Platform for AWS Marketplace, TIBCO Spotfire Desktop, and TIBCO Spotfire Server contains a vulnerability that theoretically allows a low privileged attacker with network access to execute a stored Cross Site Scripting (XSS) attack on the affected system. A successful attack using this vulnerability requires human interaction from a person other than the attacker. Affected releases are TIBCO Software Inc.'s TIBCO Spotfire Analyst: versions 10.3.3 and below, versions 10.10.0, 10.10.1, and 10.10.2, versions 10.7.0, 10.8.0, 10.9.0, 11.0.0, and 11.1.0, TIBCO Spotfire Analytics Platform for AWS Marketplace: versions 11.1.0 and below, TIBCO Spotfire Desktop: versions 10.3.3 and below, versions 10.10.0, 10.10.1, and 10.10.2, versions 10.7.0, 10.8.0, 10.9.0, 11.0.0, and 11.1.0, and TIBCO Spotfire Server: versions 10.3.11 and below, versions 10.10.0, 10.10.1, 10.10.2, and 10.10.3, versions 10.7.0, 10.8.0, 10.8.1, 10.9.0, 11.0.0, and 11.1.0.

📊 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
Low (PR:L)
Standard user access required
User Interaction
Required (UI:R)
User must click or open resource
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 tibco / analytics_platform
Affected Versions *
Weakness Enumeration CWE-79

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-2021-23273 impacting tibco analytics_platform.

⚡ Nuclei Detection Template (YAML) cve-2021-23273.yaml
id: cve-2021-23273

info:
  name: tibco analytics_platform - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: high
  description: |
    Automated signature & scanner for CVE-2021-23273 affecting tibco analytics_platform.
    Evaluation: The Spotfire client component of TIBCO Software Inc.'s TIBCO Spotfire Analyst, TIBCO Spotfire Analytics Platform for AWS Marketplace, TIBCO Spotf...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2021-23273
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
    cvss-score: 8.0
    cve-id: CVE-2021-23273
    cwe-id: CWE-79
  tags: cve,cve-2021-23273,tibco,analytics_platform,high

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "analytics_platform"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2021-23273.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2021-23273
# Target: tibco analytics_platform | CVSS: 8.0 (HIGH)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2021-23273 (tibco analytics_platform)...")
    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 analytics_platform 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-2021-23273.sh
# Recommended Remediation & Patching Commands for CVE-2021-23273
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install analytics_platform 2>/dev/null || \
sudo dnf upgrade analytics_platform 2>/dev/null || \
sudo yum update analytics_platform

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

# 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-2021-23273 in tibco analytics_platform?

Review vendor-specific security notices and update tibco analytics_platform 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-2021-23273?

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-2021-23273?

CVE-2021-23273 is classified with a CVSS 3.1 Base Score of 8.0 (HIGH). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
8.0
HIGH SEVERITY
CVE ID CVE-2021-23273
Weakness CWE-79
Vendor tibco
Product analytics_platform
Published 2021-03-09
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H