UNKNOWN CVSS 9.3
Published: 2012-11-14

CVE-2012-4953

symantec antivirus Security Advisory (CVE-2012-4953)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2012-4953 impacting symantec antivirus. Evaluated with CVSS Base Score of 9.3 (UNKNOWN).

Original NVD Description

Source: NIST NVD
The decomposer engine in Symantec Endpoint Protection (SEP) 11.0, Symantec Endpoint Protection Small Business Edition 12.0, Symantec AntiVirus Corporate Edition (SAVCE) 10.x, and Symantec Scan Engine (SSE) before 5.2.8 does not properly perform bounds checks of the contents of CAB archives, which allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted file.

📊 CVSS v3.1 Metric Breakdown

Attack Vector
Network (AV:N)
Exploitable remotely across internet boundaries

🎯 Affected Versions Matrix

Affected Product symantec / antivirus
Affected Versions 10.1.0
Weakness Enumeration CWE-119

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-2012-4953 impacting symantec antivirus.

⚡ Nuclei Detection Template (YAML) cve-2012-4953.yaml
id: cve-2012-4953

info:
  name: symantec antivirus - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: unknown
  description: |
    Automated signature & scanner for CVE-2012-4953 affecting symantec antivirus.
    Evaluation: The decomposer engine in Symantec Endpoint Protection (SEP) 11.0, Symantec Endpoint Protection Small Business Edition 12.0, Symantec AntiVirus Corpora...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2012-4953
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:M/Au:N/C:C/I:C/A:C
    cvss-score: 9.3
    cve-id: CVE-2012-4953
    cwe-id: CWE-119
  tags: cve,cve-2012-4953,symantec,antivirus,unknown

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "antivirus"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2012-4953.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2012-4953
# Target: symantec antivirus | CVSS: 9.3 (UNKNOWN)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2012-4953 (symantec antivirus)...")
    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 antivirus scope (10.1.0).")
        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-2012-4953.sh
# Recommended Remediation & Patching Commands for CVE-2012-4953
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install antivirus 2>/dev/null || \
sudo dnf upgrade antivirus 2>/dev/null || \
sudo yum update antivirus

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

# 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-2012-4953 in symantec antivirus?

Review vendor-specific security notices and update symantec antivirus 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-2012-4953?

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-2012-4953?

CVE-2012-4953 is classified with a CVSS 3.1 Base Score of 9.3 (UNKNOWN). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
9.3
UNKNOWN SEVERITY
CVE ID CVE-2012-4953
Weakness CWE-119
Vendor symantec
Product antivirus
Published 2012-11-14
Vector AV:N/AC:M/Au:N/C:C/I:C/A:C