UNKNOWN CVSS 10.0
Published: 2012-07-23

CVE-2012-2976

symantec web_gateway Security Advisory (CVE-2012-2976)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2012-2976 impacting symantec web_gateway. Evaluated with CVSS Base Score of 10.0 (UNKNOWN).

Original NVD Description

Source: NIST NVD
The management console in Symantec Web Gateway 5.0.x before 5.0.3.18 allows remote attackers to execute arbitrary shell commands via crafted input to application scripts, related to an "injection" issue.

📊 CVSS v3.1 Metric Breakdown

Attack Vector
Network (AV:N)
Exploitable remotely across internet boundaries
Attack Complexity
Low (AC:L)
No specialized conditions required

🎯 Affected Versions Matrix

Affected Product symantec / web_gateway
Affected Versions 5.0
Weakness Enumeration CWE-78

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-2012-2976 impacting symantec web_gateway.

⚡ Nuclei Detection Template (YAML) cve-2012-2976.yaml
id: cve-2012-2976

info:
  name: symantec web_gateway - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: unknown
  description: |
    Automated signature & scanner for CVE-2012-2976 affecting symantec web_gateway.
    Evaluation: The management console in Symantec Web Gateway 5.0.x before 5.0.3.18 allows remote attackers to execute arbitrary shell commands via crafted input to ...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2012-2976
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/Au:N/C:C/I:C/A:C
    cvss-score: 10.0
    cve-id: CVE-2012-2976
    cwe-id: CWE-78
  tags: cve,cve-2012-2976,symantec,web_gateway,unknown

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "web_gateway"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2012-2976.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2012-2976
# Target: symantec web_gateway | CVSS: 10.0 (UNKNOWN)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2012-2976 (symantec web_gateway)...")
    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 symantec web_gateway scope (5.0).")
        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-2012-2976.sh
# Recommended Remediation & Patching Commands for CVE-2012-2976
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install web_gateway 2>/dev/null || \
sudo dnf upgrade web_gateway 2>/dev/null || \
sudo yum update web_gateway

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

# 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-2012-2976 in symantec web_gateway?

Review vendor-specific security notices and update symantec web_gateway 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-2012-2976?

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-2012-2976?

CVE-2012-2976 is classified with a CVSS 3.1 Base Score of 10.0 (UNKNOWN). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
10.0
UNKNOWN SEVERITY
CVE ID CVE-2012-2976
Weakness CWE-78
Vendor symantec
Product web_gateway
Published 2012-07-23
Vector AV:N/AC:L/Au:N/C:C/I:C/A:C