Comprehensive security assessment findings and remediation status
ZeroTrustKerberosLink undergoes regular penetration testing by independent security firms to identify and address potential vulnerabilities. This document summarizes the results of our most recent penetration test conducted in March 2025 by SecureHorizon, a leading security assessment firm.
The assessment revealed that ZeroTrustKerberosLink maintains a strong security posture with no critical vulnerabilities identified. A total of 7 findings were reported: 0 critical, 1 high, 2 medium, 3 low, and 1 informational. All high and medium severity issues have been addressed, with the remaining low severity and informational findings scheduled for remediation in upcoming releases.
"ZeroTrustKerberosLink demonstrates a robust security architecture with strong implementation of Zero Trust principles. The identified issues were addressed promptly and comprehensively, indicating a mature security program and development process."
— SecureHorizon Assessment Team
The penetration test followed a comprehensive methodology designed to identify security weaknesses across the entire ZeroTrustKerberosLink platform:
The assessment included both automated scanning and manual testing techniques, including:
The penetration test covered the following components of ZeroTrustKerberosLink:
| Component | Description | Testing Depth |
|---|---|---|
| Authentication Service | Kerberos integration and authentication mechanisms | Comprehensive |
| Policy Enforcement Point | Access control and policy enforcement | Comprehensive |
| AWS Integration | Integration with AWS services and IAM | Comprehensive |
| Management Console | Web-based administration interface | Comprehensive |
| API Endpoints | REST API for programmatic access | Comprehensive |
| Logging and Monitoring | Audit logging and monitoring components | Standard |
The assessment identified a total of 7 findings across different severity levels:
The JWT validation process did not properly verify the signature in certain edge cases, potentially allowing token forgery.
An attacker could potentially forge authentication tokens to gain unauthorized access to protected resources.
The JWT validation logic has been updated to enforce strict signature verification in all cases. Additional validation checks have been implemented to prevent token manipulation.
Resolved in version 2.3.1
The authentication API lacked sufficient rate limiting, potentially allowing brute force attacks.
An attacker could attempt to brute force credentials without being blocked after multiple failed attempts.
Implemented progressive rate limiting with IP-based and account-based throttling. Added CAPTCHA challenges after multiple failed authentication attempts.
Resolved in version 2.3.2
API endpoints returned verbose error messages that could reveal sensitive information about the system architecture.
Detailed error messages could provide attackers with information useful for crafting targeted attacks.
Implemented a standardized error handling framework that returns generic error messages to clients while logging detailed information for administrators.
Resolved in version 2.3.2
Default installation did not enforce TLS 1.2+ for all communications.
If not manually configured, systems could potentially use older, less secure TLS versions.
Updated default configuration to enforce TLS 1.2+ for all communications. Added deployment validation to verify secure TLS configuration.
Resolved in version 2.3.3
The web console did not implement all recommended security headers.
Absence of certain security headers could potentially make the application more vulnerable to client-side attacks.
Implemented Content-Security-Policy, X-Content-Type-Options, X-Frame-Options, and other recommended security headers.
Resolved in version 2.3.3
Default session timeout was set to 8 hours, which exceeds recommended security best practices.
Extended session duration increases the risk of session hijacking if a user's device is compromised.
Reduced default session timeout to 1 hour and added configurable session timeout settings with documentation on security implications.
Scheduled for version 2.4.0
Several non-critical dependencies were not updated to the latest versions.
While no known vulnerabilities were present in the used versions, staying updated with the latest dependencies is a security best practice.
Implemented automated dependency scanning and updating process. Updated all dependencies to latest stable versions.
Scheduled for version 2.4.0
ZeroTrustKerberosLink has addressed all high and medium severity findings in recent releases:
The remediation process followed our standard security response procedure:
Based on the penetration testing results, we recommend the following security practices for ZeroTrustKerberosLink deployments:
The penetration testing results demonstrate ZeroTrustKerberosLink's commitment to security and the effectiveness of our secure development practices. The identified issues have been or are being addressed promptly, with no critical vulnerabilities discovered.
We maintain a continuous security improvement process, including:
ZeroTrustKerberosLink will continue to prioritize security in all aspects of our product development and operations, ensuring that our customers can rely on our solution for secure Kerberos to AWS integration.
