MEDIUM CVSS 6.2
Published: 2020-04-29

CVE-2020-12252

gigamon gigavue Security Advisory (CVE-2020-12252)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2020-12252 impacting gigamon gigavue. Evaluated with CVSS Base Score of 6.2 (MEDIUM).

Original NVD Description

Source: NIST NVD
An issue was discovered in Gigamon GigaVUE 5.5.01.11. The upload functionality allows an arbitrary file upload for an authenticated user. If an executable file is uploaded into the www-root directory, then it could yield remote code execution via the filename parameter.

📊 CVSS v3.1 Metric Breakdown

Attack Vector
Network (AV:N)
Exploitable remotely across internet boundaries
Attack Complexity
High (AC:H)
Depends on race conditions or environment
Privileges Required
High (PR:H)
Administrative credentials required
User Interaction
None (UI:N)
Zero human interaction required
Scope
Unchanged (S:U)
Confined to same security context
Confidentiality
Low (C:L)
Partial information leakage
Integrity
High (I:H)
Total modification of target system
Availability
High (A:H)
Total denial of service or shutdown

🎯 Affected Versions Matrix

Affected Product gigamon / gigavue
Affected Versions *
Weakness Enumeration CWE-434

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-2020-12252 impacting gigamon gigavue.

⚡ Nuclei Detection Template (YAML) cve-2020-12252.yaml
id: cve-2020-12252

info:
  name: gigamon gigavue - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: medium
  description: |
    Automated signature & scanner for CVE-2020-12252 affecting gigamon gigavue.
    Evaluation: An issue was discovered in Gigamon GigaVUE 5.5.01.11. The upload functionality allows an arbitrary file upload for an authenticated user. If an execut...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2020-12252
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:H/A:H
    cvss-score: 6.2
    cve-id: CVE-2020-12252
    cwe-id: CWE-434
  tags: cve,cve-2020-12252,gigamon,gigavue,medium

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "gigavue"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2020-12252.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2020-12252
# Target: gigamon gigavue | CVSS: 6.2 (MEDIUM)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2020-12252 (gigamon gigavue)...")
    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 gigamon gigavue 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-2020-12252.sh
# Recommended Remediation & Patching Commands for CVE-2020-12252
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install gigavue 2>/dev/null || \
sudo dnf upgrade gigavue 2>/dev/null || \
sudo yum update gigavue

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

# 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-2020-12252 in gigamon gigavue?

Review vendor-specific security notices and update gigamon gigavue 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-2020-12252?

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-2020-12252?

CVE-2020-12252 is classified with a CVSS 3.1 Base Score of 6.2 (MEDIUM). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
6.2
MEDIUM SEVERITY
CVE ID CVE-2020-12252
Weakness CWE-434
Vendor gigamon
Product gigavue
Published 2020-04-29
Vector CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:H/A:H