MEDIUM CVSS 6.5
Published: 2020-12-14

CVE-2020-15733

bitdefender antivirus_plus Security Advisory (CVE-2020-15733)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2020-15733 impacting bitdefender antivirus_plus. Evaluated with CVSS Base Score of 6.5 (MEDIUM).

Original NVD Description

Source: NIST NVD
An Origin Validation Error vulnerability in the SafePay component of Bitdefender Antivirus Plus allows a web resource to misrepresent itself in the URL bar. This issue affects: Bitdefender Antivirus Plus versions prior to 25.0.7.29.

📊 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
None (PR:N)
Unauthenticated execution
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
None (I:N)
No system modification impact
Availability
None (A:N)
No system availability impact

🎯 Affected Versions Matrix

Affected Product bitdefender / antivirus_plus
Affected Versions *
Weakness Enumeration CWE-346

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-2020-15733 impacting bitdefender antivirus_plus.

⚡ Nuclei Detection Template (YAML) cve-2020-15733.yaml
id: cve-2020-15733

info:
  name: bitdefender antivirus_plus - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: medium
  description: |
    Automated signature & scanner for CVE-2020-15733 affecting bitdefender antivirus_plus.
    Evaluation: An Origin Validation Error vulnerability in the SafePay component of Bitdefender Antivirus Plus allows a web resource to misrepresent itself in the UR...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2020-15733
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
    cvss-score: 6.5
    cve-id: CVE-2020-15733
    cwe-id: CWE-346
  tags: cve,cve-2020-15733,bitdefender,antivirus_plus,medium

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "antivirus_plus"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2020-15733.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2020-15733
# Target: bitdefender antivirus_plus | CVSS: 6.5 (MEDIUM)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2020-15733 (bitdefender antivirus_plus)...")
    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 bitdefender antivirus_plus 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-2020-15733.sh
# Recommended Remediation & Patching Commands for CVE-2020-15733
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install antivirus_plus 2>/dev/null || \
sudo dnf upgrade antivirus_plus 2>/dev/null || \
sudo yum update antivirus_plus

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

# 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-2020-15733 in bitdefender antivirus_plus?

Review vendor-specific security notices and update bitdefender antivirus_plus 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-2020-15733?

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-2020-15733?

CVE-2020-15733 is classified with a CVSS 3.1 Base Score of 6.5 (MEDIUM). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
6.5
MEDIUM SEVERITY
CVE ID CVE-2020-15733
Weakness CWE-346
Vendor bitdefender
Product antivirus_plus
Published 2020-12-14
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N