UNKNOWN CVSS 7.5
Published: 2006-11-07

CVE-2006-5780

xlink_technology omni-nfs_server Security Advisory (CVE-2006-5780)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2006-5780 impacting xlink_technology omni-nfs_server. Evaluated with CVSS Base Score of 7.5 (UNKNOWN).

Original NVD Description

Source: NIST NVD
Stack-based buffer overflow in nfsd.exe in XLink Omni-NFS Server 5.2 allows remote attackers to execute arbitrary code via a crafted TCP packet to port 2049 (nfsd), as demonstrated by vd_xlink.pm.

📊 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 xlink_technology / omni-nfs_server
Affected Versions 5.2
Weakness Enumeration NVD-CWE-Other

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-2006-5780 impacting xlink_technology omni-nfs_server.

⚡ Nuclei Detection Template (YAML) cve-2006-5780.yaml
id: cve-2006-5780

info:
  name: xlink_technology omni-nfs_server - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: unknown
  description: |
    Automated signature & scanner for CVE-2006-5780 affecting xlink_technology omni-nfs_server.
    Evaluation: Stack-based buffer overflow in nfsd.exe in XLink Omni-NFS Server 5.2 allows remote attackers to execute arbitrary code via a crafted TCP packet to por...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2006-5780
  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-2006-5780
    cwe-id: NVD-CWE-Other
  tags: cve,cve-2006-5780,xlink_technology,omni-nfs_server,unknown

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "omni-nfs_server"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2006-5780.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2006-5780
# Target: xlink_technology omni-nfs_server | 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-2006-5780 (xlink_technology omni-nfs_server)...")
    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 xlink_technology omni-nfs_server scope (5.2).")
        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-2006-5780.sh
# Recommended Remediation & Patching Commands for CVE-2006-5780
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install omni-nfs_server 2>/dev/null || \
sudo dnf upgrade omni-nfs_server 2>/dev/null || \
sudo yum update omni-nfs_server

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

# 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-2006-5780 in xlink_technology omni-nfs_server?

Review vendor-specific security notices and update xlink_technology omni-nfs_server 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-2006-5780?

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-2006-5780?

CVE-2006-5780 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-2006-5780
Weakness NVD-CWE-Other
Vendor xlink_technology
Product omni-nfs_server
Published 2006-11-07
Vector AV:N/AC:L/Au:N/C:P/I:P/A:P