HIGH CVSS 7.3
Published: 2021-01-19

CVE-2020-28472

amazon aws_sdk_for_javascipt Security Advisory (CVE-2020-28472)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2020-28472 impacting amazon aws_sdk_for_javascipt. Evaluated with CVSS Base Score of 7.3 (HIGH).

Original NVD Description

Source: NIST NVD
This affects the package @aws-sdk/shared-ini-file-loader before 1.0.0-rc.9; the package aws-sdk before 2.814.0. If an attacker submits a malicious INI file to an application that parses it with loadSharedConfigFiles , they will pollute the prototype on the application. This can be exploited further depending on the context.

📊 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
None (PR:N)
Unauthenticated execution
User Interaction
None (UI:N)
Zero human interaction required
Scope
Unchanged (S:U)
Confined to same security context
Confidentiality
Low (C:L)
Partial information leakage
Integrity
Low (I:L)
Partial data modification possible
Availability
Low (A:L)
Partial service performance degradation

🎯 Affected Versions Matrix

Affected Product amazon / aws_sdk_for_javascipt
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-2020-28472 impacting amazon aws_sdk_for_javascipt.

⚡ Nuclei Detection Template (YAML) cve-2020-28472.yaml
id: cve-2020-28472

info:
  name: amazon aws_sdk_for_javascipt - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: high
  description: |
    Automated signature & scanner for CVE-2020-28472 affecting amazon aws_sdk_for_javascipt.
    Evaluation: This affects the package @aws-sdk/shared-ini-file-loader before 1.0.0-rc.9; the package aws-sdk before 2.814.0. If an attacker submits a malicious INI...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2020-28472
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
    cvss-score: 7.3
    cve-id: CVE-2020-28472
    cwe-id: NVD-CWE-noinfo
  tags: cve,cve-2020-28472,amazon,aws_sdk_for_javascipt,high

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "aws_sdk_for_javascipt"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2020-28472.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2020-28472
# Target: amazon aws_sdk_for_javascipt | CVSS: 7.3 (HIGH)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2020-28472 (amazon aws_sdk_for_javascipt)...")
    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 amazon aws_sdk_for_javascipt 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-2020-28472.sh
# Recommended Remediation & Patching Commands for CVE-2020-28472
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install aws_sdk_for_javascipt 2>/dev/null || \
sudo dnf upgrade aws_sdk_for_javascipt 2>/dev/null || \
sudo yum update aws_sdk_for_javascipt

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

# 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-2020-28472 in amazon aws_sdk_for_javascipt?

Review vendor-specific security notices and update amazon aws_sdk_for_javascipt 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-2020-28472?

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-2020-28472?

CVE-2020-28472 is classified with a CVSS 3.1 Base Score of 7.3 (HIGH). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
7.3
HIGH SEVERITY
CVE ID CVE-2020-28472
Weakness NVD-CWE-noinfo
Vendor amazon
Product aws_sdk_for_javascipt
Published 2021-01-19
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L