MEDIUM CVSS 4.9
Published: 2021-03-09

CVE-2020-8356

lenovo xclarity_orchestrator Security Advisory (CVE-2020-8356)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2020-8356 impacting lenovo xclarity_orchestrator. Evaluated with CVSS Base Score of 4.9 (MEDIUM).

Original NVD Description

Source: NIST NVD
An internal product security audit of LXCO, prior to version 1.2.2, discovered that optional passwords, if specified, for the Syslog and SMTP forwarders are written to an internal LXCO log file in clear text. Affected logs are captured in the First Failure Data Capture (FFDC) service log. The FFDC service log is only generated when requested by a privileged LXCO user and it is only accessible to the privileged LXCO user that requested the file.

📊 CVSS v3.1 Metric Breakdown

Attack Vector
Network (AV:N)
Exploitable remotely across internet boundaries
Attack Complexity
Low (AC:L)
No specialized conditions required
Privileges Required
High (PR:H)
Administrative credentials required
User Interaction
None (UI:N)
Zero human interaction required
Scope
Unchanged (S:U)
Confined to same security context
Confidentiality
High (C:H)
Total information disclosure
Integrity
None (I:N)
No system modification impact
Availability
None (A:N)
No system availability impact

🎯 Affected Versions Matrix

Affected Product lenovo / xclarity_orchestrator
Affected Versions *
Weakness Enumeration CWE-319

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-2020-8356 impacting lenovo xclarity_orchestrator.

⚡ Nuclei Detection Template (YAML) cve-2020-8356.yaml
id: cve-2020-8356

info:
  name: lenovo xclarity_orchestrator - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: medium
  description: |
    Automated signature & scanner for CVE-2020-8356 affecting lenovo xclarity_orchestrator.
    Evaluation: An internal product security audit of LXCO, prior to version 1.2.2, discovered that optional passwords, if specified, for the Syslog and SMTP forwarde...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2020-8356
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
    cvss-score: 4.9
    cve-id: CVE-2020-8356
    cwe-id: CWE-319
  tags: cve,cve-2020-8356,lenovo,xclarity_orchestrator,medium

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "xclarity_orchestrator"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2020-8356.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2020-8356
# Target: lenovo xclarity_orchestrator | CVSS: 4.9 (MEDIUM)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2020-8356 (lenovo xclarity_orchestrator)...")
    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 lenovo xclarity_orchestrator 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-2020-8356.sh
# Recommended Remediation & Patching Commands for CVE-2020-8356
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install xclarity_orchestrator 2>/dev/null || \
sudo dnf upgrade xclarity_orchestrator 2>/dev/null || \
sudo yum update xclarity_orchestrator

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

# 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.

🔗 Verified Technical References

Authorities
  • No records filed in this category.
Distributions
  • No records filed in this category.

❓ Frequently Asked Questions (FAQ) & Remediation Guide

How do I fix CVE-2020-8356 in lenovo xclarity_orchestrator?

Review vendor-specific security notices and update lenovo xclarity_orchestrator 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-2020-8356?

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-2020-8356?

CVE-2020-8356 is classified with a CVSS 3.1 Base Score of 4.9 (MEDIUM). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
4.9
MEDIUM SEVERITY
CVE ID CVE-2020-8356
Weakness CWE-319
Vendor lenovo
Product xclarity_orchestrator
Published 2021-03-09
Vector CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N