UNKNOWN CVSS 5.8
Published: 2013-08-21

CVE-2013-4699

yahoo yafuoku\! Security Advisory (CVE-2013-4699)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2013-4699 impacting yahoo yafuoku\!. Evaluated with CVSS Base Score of 5.8 (UNKNOWN).

Original NVD Description

Source: NIST NVD
The Yahoo! Japan Yafuoku! application 4.3.0 and earlier for iOS and Android does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

📊 CVSS v3.1 Metric Breakdown

Attack Vector
Network (AV:N)
Exploitable remotely across internet boundaries
Availability
None (A:N)
No system availability impact

🎯 Affected Versions Matrix

Affected Product yahoo / yafuoku\!
Affected Versions *
Weakness Enumeration CWE-310

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-2013-4699 impacting yahoo yafuoku\!.

⚡ Nuclei Detection Template (YAML) cve-2013-4699.yaml
id: cve-2013-4699

info:
  name: yahoo yafuoku\! - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: unknown
  description: |
    Automated signature & scanner for CVE-2013-4699 affecting yahoo yafuoku\!.
    Evaluation: The Yahoo! Japan Yafuoku! application 4.3.0 and earlier for iOS and Android does not verify X.509 certificates from SSL servers, which allows man-in-t...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2013-4699
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:M/Au:N/C:P/I:P/A:N
    cvss-score: 5.8
    cve-id: CVE-2013-4699
    cwe-id: CWE-310
  tags: cve,cve-2013-4699,yahoo,yafuoku\!,unknown

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "yafuoku\!"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2013-4699.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2013-4699
# Target: yahoo yafuoku\! | CVSS: 5.8 (UNKNOWN)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2013-4699 (yahoo yafuoku\!)...")
    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 yahoo yafuoku\! scope (*).")
        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-2013-4699.sh
# Recommended Remediation & Patching Commands for CVE-2013-4699
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install yafuoku\! 2>/dev/null || \
sudo dnf upgrade yafuoku\! 2>/dev/null || \
sudo yum update yafuoku\!

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

# 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-2013-4699 in yahoo yafuoku\!?

Review vendor-specific security notices and update yahoo yafuoku\! 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-2013-4699?

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-2013-4699?

CVE-2013-4699 is classified with a CVSS 3.1 Base Score of 5.8 (UNKNOWN). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
5.8
UNKNOWN SEVERITY
CVE ID CVE-2013-4699
Weakness CWE-310
Vendor yahoo
Product yafuoku\!
Published 2013-08-21
Vector AV:N/AC:M/Au:N/C:P/I:P/A:N