UNKNOWN CVSS 2.6
Published: 2014-03-01

CVE-2011-3634

debian advanced_package_tool Security Advisory (CVE-2011-3634)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2011-3634 impacting debian advanced_package_tool. Evaluated with CVSS Base Score of 2.6 (UNKNOWN).

Original NVD Description

Source: NIST NVD
methods/https.cc in apt before 0.8.11 accepts connections when the certificate host name fails validation and Verify-Host is enabled, which allows man-in-the-middle attackers to obtain repository credentials via unspecified vectors.

📊 CVSS v3.1 Metric Breakdown

Attack Vector
Network (AV:N)
Exploitable remotely across internet boundaries
Attack Complexity
High (AC:H)
Depends on race conditions or environment
Integrity
None (I:N)
No system modification impact
Availability
None (A:N)
No system availability impact

🎯 Affected Versions Matrix

Affected Product debian / advanced_package_tool
Affected Versions *
Weakness Enumeration CWE-200

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-2011-3634 impacting debian advanced_package_tool.

⚡ Nuclei Detection Template (YAML) cve-2011-3634.yaml
id: cve-2011-3634

info:
  name: debian advanced_package_tool - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: unknown
  description: |
    Automated signature & scanner for CVE-2011-3634 affecting debian advanced_package_tool.
    Evaluation: methods/https.cc in apt before 0.8.11 accepts connections when the certificate host name fails validation and Verify-Host is enabled, which allows man...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2011-3634
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:H/Au:N/C:P/I:N/A:N
    cvss-score: 2.6
    cve-id: CVE-2011-3634
    cwe-id: CWE-200
  tags: cve,cve-2011-3634,debian,advanced_package_tool,unknown

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "advanced_package_tool"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2011-3634.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2011-3634
# Target: debian advanced_package_tool | CVSS: 2.6 (UNKNOWN)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2011-3634 (debian advanced_package_tool)...")
    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 debian advanced_package_tool 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-2011-3634.sh
# Recommended Remediation & Patching Commands for CVE-2011-3634
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install advanced_package_tool 2>/dev/null || \
sudo dnf upgrade advanced_package_tool 2>/dev/null || \
sudo yum update advanced_package_tool

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

# 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-2011-3634 in debian advanced_package_tool?

Review vendor-specific security notices and update debian advanced_package_tool 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-2011-3634?

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-2011-3634?

CVE-2011-3634 is classified with a CVSS 3.1 Base Score of 2.6 (UNKNOWN). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
2.6
UNKNOWN SEVERITY
CVE ID CVE-2011-3634
Weakness CWE-200
Vendor debian
Product advanced_package_tool
Published 2014-03-01
Vector AV:N/AC:H/Au:N/C:P/I:N/A:N