UNKNOWN CVSS 7.5
Published: 2009-08-14

CVE-2009-2766

dd-wrt dd-wrt Security Advisory (CVE-2009-2766)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2009-2766 impacting dd-wrt dd-wrt. Evaluated with CVSS Base Score of 7.5 (UNKNOWN).

Original NVD Description

Source: NIST NVD
httpd.c in httpd in the management GUI in DD-WRT 24 sp1 does not require administrative authentication for programs under cgi-bin/, which allows remote attackers to change settings via HTTP requests.

📊 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 dd-wrt / dd-wrt
Affected Versions 24
Weakness Enumeration CWE-264

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-2009-2766 impacting dd-wrt dd-wrt.

⚡ Nuclei Detection Template (YAML) cve-2009-2766.yaml
id: cve-2009-2766

info:
  name: dd-wrt dd-wrt - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: unknown
  description: |
    Automated signature & scanner for CVE-2009-2766 affecting dd-wrt dd-wrt.
    Evaluation: httpd.c in httpd in the management GUI in DD-WRT 24 sp1 does not require administrative authentication for programs under cgi-bin/, which allows remot...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2009-2766
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/Au:N/C:P/I:P/A:P
    cvss-score: 7.5
    cve-id: CVE-2009-2766
    cwe-id: CWE-264
  tags: cve,cve-2009-2766,dd-wrt,dd-wrt,unknown

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "dd-wrt"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2009-2766.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2009-2766
# Target: dd-wrt dd-wrt | CVSS: 7.5 (UNKNOWN)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2009-2766 (dd-wrt dd-wrt)...")
    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 dd-wrt dd-wrt scope (24).")
        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-2009-2766.sh
# Recommended Remediation & Patching Commands for CVE-2009-2766
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install dd-wrt 2>/dev/null || \
sudo dnf upgrade dd-wrt 2>/dev/null || \
sudo yum update dd-wrt

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

# 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-2009-2766 in dd-wrt dd-wrt?

Review vendor-specific security notices and update dd-wrt dd-wrt 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-2009-2766?

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-2009-2766?

CVE-2009-2766 is classified with a CVSS 3.1 Base Score of 7.5 (UNKNOWN). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
7.5
UNKNOWN SEVERITY
CVE ID CVE-2009-2766
Weakness CWE-264
Vendor dd-wrt
Product dd-wrt
Published 2009-08-14
Vector AV:N/AC:L/Au:N/C:P/I:P/A:P