Ameeba Security Research

Defensive CVE and exploit intelligence

Ameeba Blog Search
TRENDING · 1 WEEK
Attack Vector
Vendor
Severity

CVE-2025-8069: AWS Client VPN OpenSSL Configuration File Arbitrarily Accessed in Windows

Views: 541

Overview

CVE-2025-8069 is a significant cybersecurity vulnerability affecting the AWS Client VPN client installation process on Windows devices. Specifically, this vulnerability arises due to the install process referencing a directory location to fetch the OpenSSL configuration file, which could potentially be manipulated by non-admin users. This issue is particularly noteworthy due to its potential to allow arbitrary code execution with root-level privileges if an admin user initiates the client installation process. Importantly, this vulnerability does not affect Linux or Mac devices, but Windows users should be aware of the potential risk.

Vulnerability Summary

CVE ID: CVE-2025-8069
Severity: High (CVSS: 7.8)
Attack Vector: Local
Privileges Required: Low
User Interaction: Required
Impact: Potential system compromise or data leakage

Affected Products

Ameeba Chat Icon Share secrets securely

Ameeba is private infrastructure for communication and sensitive work built on encrypted identity instead of exposed corporate identity systems.

Passwords, credentials, confidential files, screenshots, internal discussions, sensitive AI context, and private coordination should not become exposed across ordinary communication platforms.

  • • Encrypted identity
  • • Private Spaces for organizations and teams
  • • End-to-end encrypted chat, calls, files, and notes
  • • Sensitive AI work and protected collaboration
  • • Built for information that cannot leak

Our mission is to secure human work alongside AI.

Product | Affected Versions

AWS Client VPN | Prior to version 5.2.2

How the Exploit Works

The exploit takes advantage of the AWS Client VPN client installation process on Windows devices. During the installation, the process references the C:usrlocalwindows-x86_64-openssl-localbuildssl directory to fetch the OpenSSL configuration file. A non-admin user with access to the system could replace the configuration file with one that contains arbitrary code. If an admin user starts the installation process thereafter, the arbitrary code in the configuration file will execute with root-level privileges, potentially leading to a complete system compromise.

Conceptual Example Code

This is a conceptual example of how the vulnerability might be exploited. Here, a non-admin user places arbitrary code into the OpenSSL configuration file:

echo "arbitrary code" > C:\usr\local\windows-x86_64-openssl-localbuild\ssl\openssl.cnf

Then, when an admin user starts the AWS Client VPN client installation process, the arbitrary code executes with root-level privileges:

.\AWSClientVPN.exe install

This could lead to a variety of outcomes, including system compromise and data leakage. To mitigate this vulnerability, we recommend applying the vendor patch or using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as temporary mitigation. Furthermore, no new installations of AWS Client VPN on Windows should be performed prior to version 5.2.2.

Want to discuss this further? Join the Ameeba Cybersecurity Group Chat.

Disclaimer:

The information and code presented in this article are provided for educational and defensive cybersecurity purposes only. Any conceptual or pseudocode examples are simplified representations intended to raise awareness and promote secure development and system configuration practices.

Do not use this information to attempt unauthorized access or exploit vulnerabilities on systems that you do not own or have explicit permission to test.

Ameeba and its authors do not endorse or condone malicious behavior and are not responsible for misuse of the content. Always follow ethical hacking guidelines, responsible disclosure practices, and local laws.

More posts

Ameeba Chat