UNKNOWN CVSS 6.2
Published: 2007-07-15

CVE-2007-3103

fedoraproject fedora_core Security Advisory (CVE-2007-3103)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2007-3103 impacting fedoraproject fedora_core. Evaluated with CVSS Base Score of 6.2 (UNKNOWN).

Original NVD Description

Source: NIST NVD
The init.d script for the X.Org X11 xfs font server on various Linux distributions might allow local users to change the permissions of arbitrary files via a symlink attack on the /tmp/.font-unix temporary file.

📊 CVSS v3.1 Metric Breakdown

Attack Vector
Local (AV:L)
Requires local system execution permissions
Attack Complexity
High (AC:H)
Depends on race conditions or environment

🎯 Affected Versions Matrix

Affected Product fedoraproject / fedora_core
Affected Versions 6.0
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-2007-3103 impacting fedoraproject fedora_core.

⚡ Nuclei Detection Template (YAML) cve-2007-3103.yaml
id: cve-2007-3103

info:
  name: fedoraproject fedora_core - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: unknown
  description: |
    Automated signature & scanner for CVE-2007-3103 affecting fedoraproject fedora_core.
    Evaluation: The init.d script for the X.Org X11 xfs font server on various Linux distributions might allow local users to change the permissions of arbitrary file...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2007-3103
  classification:
    cvss-metrics: CVSS:3.1/AV:L/AC:H/Au:N/C:C/I:C/A:C
    cvss-score: 6.2
    cve-id: CVE-2007-3103
    cwe-id: CWE-59
  tags: cve,cve-2007-3103,fedoraproject,fedora_core,unknown

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "fedora_core"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2007-3103.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2007-3103
# Target: fedoraproject fedora_core | CVSS: 6.2 (UNKNOWN)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2007-3103 (fedoraproject fedora_core)...")
    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 fedoraproject fedora_core scope (6.0).")
        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-2007-3103.sh
# Recommended Remediation & Patching Commands for CVE-2007-3103
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install fedora_core 2>/dev/null || \
sudo dnf upgrade fedora_core 2>/dev/null || \
sudo yum update fedora_core

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

# 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-2007-3103 in fedoraproject fedora_core?

Review vendor-specific security notices and update fedoraproject fedora_core 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-2007-3103?

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-2007-3103?

CVE-2007-3103 is classified with a CVSS 3.1 Base Score of 6.2 (UNKNOWN). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
6.2
UNKNOWN SEVERITY
CVE ID CVE-2007-3103
Weakness CWE-59
Vendor fedoraproject
Product fedora_core
Published 2007-07-15
Vector AV:L/AC:H/Au:N/C:C/I:C/A:C