MEDIUM CVSS 6.8
Published: 2020-11-18

CVE-2020-13799

westerndigital inand_cl_em132_firmware Security Advisory (CVE-2020-13799)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2020-13799 impacting westerndigital inand_cl_em132_firmware. Evaluated with CVSS Base Score of 6.8 (MEDIUM).

Original NVD Description

Source: NIST NVD
Western Digital has identified a security vulnerability in the Replay Protected Memory Block (RPMB) protocol as specified in multiple standards for storage device interfaces, including all versions of eMMC, UFS, and NVMe. The RPMB protocol is specified by industry standards bodies and is implemented by storage devices from multiple vendors to assist host systems in securing trusted firmware. Several scenarios have been identified in which the RPMB state may be affected by an attacker without the knowledge of the trusted component that uses the RPMB feature.

📊 CVSS v3.1 Metric Breakdown

Attack Vector
Physical (AV:P)
Requires physical access to target hardware
Attack Complexity
Low (AC:L)
No specialized conditions required
Privileges Required
None (PR:N)
Unauthenticated execution
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
High (I:H)
Total modification of target system
Availability
High (A:H)
Total denial of service or shutdown

🎯 Affected Versions Matrix

Affected Product westerndigital / inand_cl_em132_firmware
Affected Versions *
Weakness Enumeration CWE-294

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-2020-13799 impacting westerndigital inand_cl_em132_firmware.

⚡ Nuclei Detection Template (YAML) cve-2020-13799.yaml
id: cve-2020-13799

info:
  name: westerndigital inand_cl_em132_firmware - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: medium
  description: |
    Automated signature & scanner for CVE-2020-13799 affecting westerndigital inand_cl_em132_firmware.
    Evaluation: Western Digital has identified a security vulnerability in the Replay Protected Memory Block (RPMB) protocol as specified in multiple standards for st...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2020-13799
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 6.8
    cve-id: CVE-2020-13799
    cwe-id: CWE-294
  tags: cve,cve-2020-13799,westerndigital,inand_cl_em132_firmware,medium

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "inand_cl_em132_firmware"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2020-13799.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2020-13799
# Target: westerndigital inand_cl_em132_firmware | CVSS: 6.8 (MEDIUM)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2020-13799 (westerndigital inand_cl_em132_firmware)...")
    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 westerndigital inand_cl_em132_firmware 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-2020-13799.sh
# Recommended Remediation & Patching Commands for CVE-2020-13799
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install inand_cl_em132_firmware 2>/dev/null || \
sudo dnf upgrade inand_cl_em132_firmware 2>/dev/null || \
sudo yum update inand_cl_em132_firmware

# 2. Inspect installed package versions for vulnerable scope:
dpkg -l | grep -i inand_cl_em132_firmware 2>/dev/null || rpm -qa | grep -i inand_cl_em132_firmware

# 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-2020-13799 in westerndigital inand_cl_em132_firmware?

Review vendor-specific security notices and update westerndigital inand_cl_em132_firmware 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-2020-13799?

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-2020-13799?

CVE-2020-13799 is classified with a CVSS 3.1 Base Score of 6.8 (MEDIUM). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
6.8
MEDIUM SEVERITY
CVE ID CVE-2020-13799
Weakness CWE-294
Vendor westerndigital
Product inand_cl_em132_firmware
Published 2020-11-18
Vector CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H