UNKNOWN CVSS 4.3
Published: 2012-08-06

CVE-2011-4447

bitcoin bitcoin_core Security Advisory (CVE-2011-4447)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2011-4447 impacting bitcoin bitcoin_core. Evaluated with CVSS Base Score of 4.3 (UNKNOWN).

Original NVD Description

Source: NIST NVD
The "encrypt wallet" feature in wxBitcoin and bitcoind 0.4.x before 0.4.1, and 0.5.0rc, does not properly interact with the deletion functionality of BSDDB, which allows context-dependent attackers to obtain unencrypted private keys from Bitcoin wallet files by bypassing the BSDDB interface and reading entries that are marked for deletion.

📊 CVSS v3.1 Metric Breakdown

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

🎯 Affected Versions Matrix

Affected Product bitcoin / bitcoin_core
Affected Versions 0.4.0
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-2011-4447 impacting bitcoin bitcoin_core.

⚡ Nuclei Detection Template (YAML) cve-2011-4447.yaml
id: cve-2011-4447

info:
  name: bitcoin bitcoin_core - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: unknown
  description: |
    Automated signature & scanner for CVE-2011-4447 affecting bitcoin bitcoin_core.
    Evaluation: The "encrypt wallet" feature in wxBitcoin and bitcoind 0.4.x before 0.4.1, and 0.5.0rc, does not properly interact with the deletion functio...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2011-4447
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:M/Au:N/C:P/I:N/A:N
    cvss-score: 4.3
    cve-id: CVE-2011-4447
    cwe-id: CWE-310
  tags: cve,cve-2011-4447,bitcoin,bitcoin_core,unknown

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "bitcoin_core"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2011-4447.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2011-4447
# Target: bitcoin bitcoin_core | CVSS: 4.3 (UNKNOWN)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2011-4447 (bitcoin bitcoin_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 bitcoin bitcoin_core scope (0.4.0).")
        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-2011-4447.sh
# Recommended Remediation & Patching Commands for CVE-2011-4447
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install bitcoin_core 2>/dev/null || \
sudo dnf upgrade bitcoin_core 2>/dev/null || \
sudo yum update bitcoin_core

# 2. Inspect installed package versions for vulnerable scope:
dpkg -l | grep -i bitcoin_core 2>/dev/null || rpm -qa | grep -i bitcoin_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-2011-4447 in bitcoin bitcoin_core?

Review vendor-specific security notices and update bitcoin bitcoin_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-2011-4447?

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-2011-4447?

CVE-2011-4447 is classified with a CVSS 3.1 Base Score of 4.3 (UNKNOWN). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
4.3
UNKNOWN SEVERITY
CVE ID CVE-2011-4447
Weakness CWE-310
Vendor bitcoin
Product bitcoin_core
Published 2012-08-06
Vector AV:N/AC:M/Au:N/C:P/I:N/A:N