UNKNOWN CVSS 3.5
Published: 2012-06-07

CVE-2012-2101

openstack nova Security Advisory (CVE-2012-2101)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2012-2101 impacting openstack nova. Evaluated with CVSS Base Score of 3.5 (UNKNOWN).

Original NVD Description

Source: NIST NVD
Openstack Compute (Nova) Folsom, 2012.1, and 2011.3 does not limit the number of security group rules, which allows remote authenticated users with certain permissions to cause a denial of service (CPU and hard drive consumption) via a network request that triggers a large number of iptables rules.

📊 CVSS v3.1 Metric Breakdown

Attack Vector
Network (AV:N)
Exploitable remotely across internet boundaries
Confidentiality
None (C:N)
No data confidentiality impact
Integrity
None (I:N)
No system modification impact

🎯 Affected Versions Matrix

Affected Product openstack / nova
Affected Versions 2011.3
Weakness Enumeration CWE-264

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-2012-2101 impacting openstack nova.

⚡ Nuclei Detection Template (YAML) cve-2012-2101.yaml
id: cve-2012-2101

info:
  name: openstack nova - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: unknown
  description: |
    Automated signature & scanner for CVE-2012-2101 affecting openstack nova.
    Evaluation: Openstack Compute (Nova) Folsom, 2012.1, and 2011.3 does not limit the number of security group rules, which allows remote authenticated users with ce...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2012-2101
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:M/Au:S/C:N/I:N/A:P
    cvss-score: 3.5
    cve-id: CVE-2012-2101
    cwe-id: CWE-264
  tags: cve,cve-2012-2101,openstack,nova,unknown

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "nova"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2012-2101.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2012-2101
# Target: openstack nova | CVSS: 3.5 (UNKNOWN)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2012-2101 (openstack nova)...")
    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 openstack nova scope (2011.3).")
        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-2012-2101.sh
# Recommended Remediation & Patching Commands for CVE-2012-2101
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install nova 2>/dev/null || \
sudo dnf upgrade nova 2>/dev/null || \
sudo yum update nova

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

# 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-2012-2101 in openstack nova?

Review vendor-specific security notices and update openstack nova 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-2012-2101?

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-2012-2101?

CVE-2012-2101 is classified with a CVSS 3.1 Base Score of 3.5 (UNKNOWN). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
3.5
UNKNOWN SEVERITY
CVE ID CVE-2012-2101
Weakness CWE-264
Vendor openstack
Product nova
Published 2012-06-07
Vector AV:N/AC:M/Au:S/C:N/I:N/A:P