UNKNOWN CVSS 2.6
Published: 2006-02-25

CVE-2006-0898

lincoln_d._stein crypt_cbc Security Advisory (CVE-2006-0898)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2006-0898 impacting lincoln_d._stein crypt_cbc. Evaluated with CVSS Base Score of 2.6 (UNKNOWN).

Original NVD Description

Source: NIST NVD
Crypt::CBC Perl module 2.16 and earlier, when running in RandomIV mode, uses an initialization vector (IV) of 8 bytes, which results in weaker encryption when used with a cipher that requires a larger block size than 8 bytes, such as Rijndael.

📊 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 lincoln_d._stein / crypt_cbc
Affected Versions *
Weakness Enumeration NVD-CWE-Other

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-2006-0898 impacting lincoln_d._stein crypt_cbc.

⚡ Nuclei Detection Template (YAML) cve-2006-0898.yaml
id: cve-2006-0898

info:
  name: lincoln_d._stein crypt_cbc - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: unknown
  description: |
    Automated signature & scanner for CVE-2006-0898 affecting lincoln_d._stein crypt_cbc.
    Evaluation: Crypt::CBC Perl module 2.16 and earlier, when running in RandomIV mode, uses an initialization vector (IV) of 8 bytes, which results in weaker encrypt...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2006-0898
  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-2006-0898
    cwe-id: NVD-CWE-Other
  tags: cve,cve-2006-0898,lincoln_d._stein,crypt_cbc,unknown

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "crypt_cbc"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2006-0898.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2006-0898
# Target: lincoln_d._stein crypt_cbc | 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-2006-0898 (lincoln_d._stein crypt_cbc)...")
    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 lincoln_d._stein crypt_cbc 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-2006-0898.sh
# Recommended Remediation & Patching Commands for CVE-2006-0898
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install crypt_cbc 2>/dev/null || \
sudo dnf upgrade crypt_cbc 2>/dev/null || \
sudo yum update crypt_cbc

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

# 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-2006-0898 in lincoln_d._stein crypt_cbc?

Review vendor-specific security notices and update lincoln_d._stein crypt_cbc 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-2006-0898?

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-2006-0898?

CVE-2006-0898 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-2006-0898
Weakness NVD-CWE-Other
Vendor lincoln_d._stein
Product crypt_cbc
Published 2006-02-25
Vector AV:N/AC:H/Au:N/C:P/I:N/A:N