MEDIUM CVSS 5.5
Published: 2002-08-12

CVE-2002-0793

blackberry qnx_neutrino_real-time_operating_system Security Advisory (CVE-2002-0793)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2002-0793 impacting blackberry qnx_neutrino_real-time_operating_system. Evaluated with CVSS Base Score of 5.5 (MEDIUM).

Original NVD Description

Source: NIST NVD
Hard link and possibly symbolic link following vulnerabilities in QNX RTOS 4.25 (aka QNX4) allow local users to overwrite arbitrary files via (1) the -f argument to the monitor utility, (2) the -d argument to dumper, (3) the -c argument to crttrap, or (4) using the Watcom sample utility.

📊 CVSS v3.1 Metric Breakdown

Attack Vector
Local (AV:L)
Requires local system execution permissions
Attack Complexity
Low (AC:L)
No specialized conditions required
Privileges Required
Low (PR:L)
Standard user access required
User Interaction
None (UI:N)
Zero human interaction required
Scope
Unchanged (S:U)
Confined to same security context
Confidentiality
None (C:N)
No data confidentiality impact
Integrity
High (I:H)
Total modification of target system
Availability
None (A:N)
No system availability impact

🎯 Affected Versions Matrix

Affected Product blackberry / qnx_neutrino_real-time_operating_system
Affected Versions 4.25
Weakness Enumeration CWE-59

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-2002-0793 impacting blackberry qnx_neutrino_real-time_operating_system.

⚡ Nuclei Detection Template (YAML) cve-2002-0793.yaml
id: cve-2002-0793

info:
  name: blackberry qnx_neutrino_real-time_operating_system - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: medium
  description: |
    Automated signature & scanner for CVE-2002-0793 affecting blackberry qnx_neutrino_real-time_operating_system.
    Evaluation: Hard link and possibly symbolic link following vulnerabilities in QNX RTOS 4.25 (aka QNX4) allow local users to overwrite arbitrary files via (1) the ...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2002-0793
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
    cvss-score: 5.5
    cve-id: CVE-2002-0793
    cwe-id: CWE-59
  tags: cve,cve-2002-0793,blackberry,qnx_neutrino_real-time_op,medium

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "qnx_neutrino_real-time_operating_system"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2002-0793.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2002-0793
# Target: blackberry qnx_neutrino_real-time_operating_system | CVSS: 5.5 (MEDIUM)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2002-0793 (blackberry qnx_neutrino_real-time_operating_system)...")
    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 blackberry qnx_neutrino_real-time_operating_system scope (4.25).")
        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-2002-0793.sh
# Recommended Remediation & Patching Commands for CVE-2002-0793
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install qnx_neutrino_real-time_op 2>/dev/null || \
sudo dnf upgrade qnx_neutrino_real-time_op 2>/dev/null || \
sudo yum update qnx_neutrino_real-time_op

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

# 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-2002-0793 in blackberry qnx_neutrino_real-time_operating_system?

Review vendor-specific security notices and update blackberry qnx_neutrino_real-time_operating_system 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-2002-0793?

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-2002-0793?

CVE-2002-0793 is classified with a CVSS 3.1 Base Score of 5.5 (MEDIUM). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
5.5
MEDIUM SEVERITY
CVE ID CVE-2002-0793
Weakness CWE-59
Vendor blackberry
Product qnx_neutrino_real-time_operating_system
Published 2002-08-12
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N