UNKNOWN CVSS 5.0
Published: 1999-01-29

CVE-1999-1546

ibm navio_nc_browser Security Advisory (CVE-1999-1546)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-1999-1546 impacting ibm navio_nc_browser. Evaluated with CVSS Base Score of 5.0 (UNKNOWN).

Original NVD Description

Source: NIST NVD
netstation.navio-com.rte 1.1.0.1 configuration script for Navio NC on IBM AIX exports /tmp over NFS as world-readable and world-writable.

📊 CVSS v3.1 Metric Breakdown

Attack Vector
Network (AV:N)
Exploitable remotely across internet boundaries
Attack Complexity
Low (AC:L)
No specialized conditions required
Integrity
None (I:N)
No system modification impact
Availability
None (A:N)
No system availability impact

🎯 Affected Versions Matrix

Affected Product ibm / navio_nc_browser
Affected Versions 1.1.0.1
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-1999-1546 impacting ibm navio_nc_browser.

⚡ Nuclei Detection Template (YAML) cve-1999-1546.yaml
id: cve-1999-1546

info:
  name: ibm navio_nc_browser - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: unknown
  description: |
    Automated signature & scanner for CVE-1999-1546 affecting ibm navio_nc_browser.
    Evaluation: netstation.navio-com.rte 1.1.0.1 configuration script for Navio NC on IBM AIX exports /tmp over NFS as world-readable and world-writable....
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-1999-1546
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/Au:N/C:P/I:N/A:N
    cvss-score: 5.0
    cve-id: CVE-1999-1546
    cwe-id: NVD-CWE-Other
  tags: cve,cve-1999-1546,ibm,navio_nc_browser,unknown

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "navio_nc_browser"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-1999-1546.py
# Proof-of-Concept Exploit & Verification Probe for CVE-1999-1546
# Target: ibm navio_nc_browser | CVSS: 5.0 (UNKNOWN)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-1999-1546 (ibm navio_nc_browser)...")
    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 ibm navio_nc_browser scope (1.1.0.1).")
        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-1999-1546.sh
# Recommended Remediation & Patching Commands for CVE-1999-1546
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install navio_nc_browser 2>/dev/null || \
sudo dnf upgrade navio_nc_browser 2>/dev/null || \
sudo yum update navio_nc_browser

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

# 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-1999-1546 in ibm navio_nc_browser?

Review vendor-specific security notices and update ibm navio_nc_browser 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-1999-1546?

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-1999-1546?

CVE-1999-1546 is classified with a CVSS 3.1 Base Score of 5.0 (UNKNOWN). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
5.0
UNKNOWN SEVERITY
CVE ID CVE-1999-1546
Weakness NVD-CWE-Other
Vendor ibm
Product navio_nc_browser
Published 1999-01-29
Vector AV:N/AC:L/Au:N/C:P/I:N/A:N