UNKNOWN CVSS 4.6
Published: 2006-12-10

CVE-2006-6383

php php Security Advisory (CVE-2006-6383)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2006-6383 impacting php php. Evaluated with CVSS Base Score of 4.6 (UNKNOWN).

Original NVD Description

Source: NIST NVD
PHP 5.2.0 and 4.4 allows local users to bypass safe_mode and open_basedir restrictions via a malicious path and a null byte before a ";" in a session_save_path argument, followed by an allowed path, which causes a parsing inconsistency in which PHP validates the allowed path but sets session.save_path to the malicious path.

📊 CVSS v3.1 Metric Breakdown

Attack Vector
Local (AV:L)
Requires local system execution permissions
Attack Complexity
Low (AC:L)
No specialized conditions required

🎯 Affected Versions Matrix

Affected Product php / php
Affected Versions 4.4.0
Weakness Enumeration CWE-20

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-2006-6383 impacting php php.

⚡ Nuclei Detection Template (YAML) cve-2006-6383.yaml
id: cve-2006-6383

info:
  name: php php - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: unknown
  description: |
    Automated signature & scanner for CVE-2006-6383 affecting php php.
    Evaluation: PHP 5.2.0 and 4.4 allows local users to bypass safe_mode and open_basedir restrictions via a malicious path and a null byte before a ";" in ...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2006-6383
  classification:
    cvss-metrics: CVSS:3.1/AV:L/AC:L/Au:N/C:P/I:P/A:P
    cvss-score: 4.6
    cve-id: CVE-2006-6383
    cwe-id: CWE-20
  tags: cve,cve-2006-6383,php,php,unknown

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "php"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2006-6383.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2006-6383
# Target: php php | CVSS: 4.6 (UNKNOWN)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2006-6383 (php php)...")
    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 php php scope (4.4.0).")
        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-2006-6383.sh
# Recommended Remediation & Patching Commands for CVE-2006-6383
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install php 2>/dev/null || \
sudo dnf upgrade php 2>/dev/null || \
sudo yum update php

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

# 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-2006-6383 in php php?

Review vendor-specific security notices and update php php 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-2006-6383?

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-2006-6383?

CVE-2006-6383 is classified with a CVSS 3.1 Base Score of 4.6 (UNKNOWN). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
4.6
UNKNOWN SEVERITY
CVE ID CVE-2006-6383
Weakness CWE-20
Vendor php
Product php
Published 2006-12-10
Vector AV:L/AC:L/Au:N/C:P/I:P/A:P