UNKNOWN CVSS 4.4
Published: 2013-12-02

CVE-2012-0420

opensuse zypper Security Advisory (CVE-2012-0420)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2012-0420 impacting opensuse zypper. Evaluated with CVSS Base Score of 4.4 (UNKNOWN).

Original NVD Description

Source: NIST NVD
zypp-refresh-wrapper in SUSE Zypper before 1.3.20 and 1.6.x before 1.6.166 allows local users to create files in arbitrary directories, or possibly have unspecified other impact, via a pathname in the ZYPP_LOCKFILE_ROOT environment variable.

📊 CVSS v3.1 Metric Breakdown

Attack Vector
Local (AV:L)
Requires local system execution permissions

🎯 Affected Versions Matrix

Affected Product opensuse / zypper
Affected Versions *
Weakness Enumeration NVD-CWE-noinfo

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-2012-0420 impacting opensuse zypper.

⚡ Nuclei Detection Template (YAML) cve-2012-0420.yaml
id: cve-2012-0420

info:
  name: opensuse zypper - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: unknown
  description: |
    Automated signature & scanner for CVE-2012-0420 affecting opensuse zypper.
    Evaluation: zypp-refresh-wrapper in SUSE Zypper before 1.3.20 and 1.6.x before 1.6.166 allows local users to create files in arbitrary directories, or possibly ha...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2012-0420
  classification:
    cvss-metrics: CVSS:3.1/AV:L/AC:M/Au:N/C:P/I:P/A:P
    cvss-score: 4.4
    cve-id: CVE-2012-0420
    cwe-id: NVD-CWE-noinfo
  tags: cve,cve-2012-0420,opensuse,zypper,unknown

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "zypper"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2012-0420.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2012-0420
# Target: opensuse zypper | CVSS: 4.4 (UNKNOWN)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2012-0420 (opensuse zypper)...")
    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 opensuse zypper 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-2012-0420.sh
# Recommended Remediation & Patching Commands for CVE-2012-0420
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install zypper 2>/dev/null || \
sudo dnf upgrade zypper 2>/dev/null || \
sudo yum update zypper

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

# 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-2012-0420 in opensuse zypper?

Review vendor-specific security notices and update opensuse zypper 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-2012-0420?

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-2012-0420?

CVE-2012-0420 is classified with a CVSS 3.1 Base Score of 4.4 (UNKNOWN). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
4.4
UNKNOWN SEVERITY
CVE ID CVE-2012-0420
Weakness NVD-CWE-noinfo
Vendor opensuse
Product zypper
Published 2013-12-02
Vector AV:L/AC:M/Au:N/C:P/I:P/A:P