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CVE-2020-14871 — Vulnerability in the Oracle Solaris product of Oracle Systems (component: Pluggable…

Key facts

CVE-2020-14871 is a Critical (10.0) vulnerability: Vulnerability in the Oracle Solaris product of Oracle Systems (component: Pluggable…. This entry ships a detection-only PoC and a Docker test lab. It is on the CISA Known Exploited Vulnerabilities (KEV) catalog (added 2021-11-03), confirming active exploitation in the wild.

Actively exploited — on the CISA KEV catalog

CVE-2020-14871 is listed on the CISA Known Exploited Vulnerabilities (KEV) catalog (added 2021-11-03), confirming exploitation in the wild. Federal remediation deadline: 2022-05-03. Prioritise patching and deploy the detection and prevention rules below.
CVE CVE-2020-14871
Severity Critical (10.0)
CISA KEV Actively exploited (added 2021-11-03)
Detection / prevention —
PoC poc.py
Source 2020/CVE-2020-14871/

Details

English | 한국어

Description

Vulnerability in the Oracle Solaris product of Oracle Systems (component: Pluggable authentication module). Supported versions that are affected are 10 and 11. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Solaris. While the vulnerability is in Oracle Solaris, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in takeover of Oracle Solaris. Note: This CVE is not exploitable for Solaris 11.1 and later releases, and ZFSSA 8.7 and later releases, thus the CVSS Base Score is 0.0. CVSS 3.1 Base Score 10.0 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H).

Vulnerability Details

Property Value
CVE ID CVE-2020-14871
Type RCE
CVSS Score 10.0

Proof of Concept

Download

# Download PoC script
curl -O https://raw.githubusercontent.com/fankh/vulnerability-poc/main/2020/CVE-2020-14871/poc.py

Usage

# Run PoC against target
python3 poc.py --target <TARGET_URL>

# With authentication
python3 poc.py --target <TARGET_URL> --username <USER> --password <PASS>

⚠️ Warning: This PoC is for authorized security testing only. It uses detection-only techniques and does not exploit or damage target systems.

Test Lab

This repository includes a Docker-based test environment with both vulnerable and patched applications.

Quick Start

# Clone and navigate to CVE directory
cd CVE-2020-14871

# Start both applications
docker-compose up -d

# Run tests
./run-tests.sh    # Linux/Mac
./run-tests.ps1   # Windows PowerShell

Application Endpoints

Application URL Status
Vulnerable App http://localhost:8080 Shows vulnerability
Patched App http://localhost:8081 Demonstrates fix

Directory Structure

├── README.md           # English documentation
├── README_KO.md        # Korean documentation
├── poc.py              # PoC detection script
├── docker-compose.yml  # Container orchestration
├── run-tests.sh        # Linux/Mac test runner
├── run-tests.ps1       # Windows test runner
├── vulnerable-app/     # Vulnerable version
│   ├── app.py
│   ├── Dockerfile
│   └── requirements.txt
└── patched-app/        # Fixed version
    ├── app.py
    ├── Dockerfile
    └── requirements.txt

References

  • http://packetstormsecurity.com/files/159961/SunSSH-Solaris-10-x86-Remote-Root.html
  • http://packetstormsecurity.com/files/160510/Solaris-SunSSH-11.0-x86-libpam-Remote-Root.html
  • http://packetstormsecurity.com/files/160609/Oracle-Solaris-SunSSH-PAM-parse_user_name-Buffer-Overflow.html
  • http://packetstormsecurity.com/files/163232/Solaris-SunSSH-11.0-Remote-Root.html
  • http://www.openwall.com/lists/oss-security/2021/03/03/1
  • http://www.openwall.com/lists/oss-security/2024/07/03/3
  • https://www.oracle.com/security-alerts/cpuoct2020.html
  • http://packetstormsecurity.com/files/159961/SunSSH-Solaris-10-x86-Remote-Root.html
  • http://packetstormsecurity.com/files/160510/Solaris-SunSSH-11.0-x86-libpam-Remote-Root.html
  • http://packetstormsecurity.com/files/160609/Oracle-Solaris-SunSSH-PAM-parse_user_name-Buffer-Overflow.html
  • http://packetstormsecurity.com/files/163232/Solaris-SunSSH-11.0-Remote-Root.html
  • http://www.openwall.com/lists/oss-security/2021/03/03/1
  • http://www.openwall.com/lists/oss-security/2024/07/03/3
  • https://www.oracle.com/security-alerts/cpuoct2020.html
  • https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-14871

Generated by PoC Generator on 2026-06-23T18:51:15.232134059

Frequently asked questions

What is CVE-2020-14871?

CVE-2020-14871 is a Critical (10.0) vulnerability: Vulnerability in the Oracle Solaris product of Oracle Systems (component: Pluggable…. This entry ships a detection-only PoC and a Docker test lab. It is on the CISA Known Exploited Vulnerabilities (KEV) catalog (added 2021-11-03), confirming active exploitation in the wild.

How do I detect CVE-2020-14871?

Run the detection-only PoC included with this entry against your Docker test lab to confirm whether a target is affected; pair it with your own IDS logging.

How do I block or mitigate CVE-2020-14871?

Upgrade to a fixed version per the vendor advisory; the NVD record lists the affected versions. Use the included PoC to verify your remediation.

Is CVE-2020-14871 actively exploited?

Yes. CVE-2020-14871 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, added 2021-11-03, which means it has been exploited in the wild. CISA set a federal remediation deadline of 2022-05-03. Prioritise patching and deploy the detection and prevention rules above.

For authorized security testing and research only. See the full source and NVD record.