SSL FREAK Vulnerability Checker

SSL FREAK Vulnerability Checker: Core Features & Principles

When you are unsure whether your website is at risk of man-in-the-middle attacks due to outdated TLS configurations, this tool provides a quick answer. The SSL FREAK vulnerability (CVE-2015-0204) is a flaw in the SSL/TLS protocol that allows attackers to force encrypted connections to downgrade to weak, export-grade RSA keys, which can then be cracked to steal transmitted data. This tool actively initiates a TLS handshake with your entered domain (e.g., example.com) and specified port (e.g., 443) to detect if it still supports these proven-insecure export-grade cipher suites, outputting a definitive result on the presence of this specific vulnerability.

Why Choose Our SSL FREAK Vulnerability Scanner?

• Precise CVE-2015-0204 Detection: Designed specifically to identify the FREAK vulnerability, directly linking to the CVE number for clear and definitive results, rather than a generic security scan.
• Custom Port Support: In addition to the default HTTPS port (443), you can specify other ports for testing, making it suitable for checking TLS services on non-standard ports.
• Structured Results: The report doesn't just say "Safe" or "Vulnerable"; it includes the associated IP, port, CVE/CWE numbers, and a detailed description for easy documentation and remediation.

How to Use

1. Enter the target domain you want to test (e.g., yourdomain.com) in the "Domain" input field.
2. (Optional) Modify the default port 443 in the "Port" input field to test other TLS services.
3. Click the "Start Scan" button. The tool will automatically initiate the scan and display a structured report within seconds.

Frequently Asked Questions (FAQ)

Q: What does it mean if the result says "Vulnerable"?
A: It means the target server's SSL/TLS configuration supports export-grade RSA cipher suites that have been flagged as weak. The server is likely affected by the CVE-2015-0204 (FREAK) vulnerability and is at risk of man-in-the-middle attacks that downgrade encryption strength and decrypt communications. You should immediately disable all export-grade cipher suites on the server.

Q: How do I fix the SSL FREAK vulnerability?
A: Update TLS libraries like OpenSSL on your server to a secure version, and explicitly disable all cipher suites containing the keyword "EXPORT" in your configuration.

Important Notes

This tool only performs a targeted check for the FREAK vulnerability and cannot replace a comprehensive security audit. An "OK" result only indicates that this specific vulnerability was not found; it does not mean the system is absolutely secure. Ensure the domain you enter can be publicly resolved. The tool does not store or log the domain information you enter. In multi-IP scenarios behind a load balancer, the tool may only scan one of the entry IPs.

Technical Notes & Recommendations

The FREAK vulnerability primarily affects servers and clients that retained weak "export-grade" encryption algorithms historically required to comply with US export control regulations. In modern security practices, suites like "TLS_RSA_EXPORT_WITH_RC4_40_MD5" should be completely disabled in TLS configurations. A typical test example: enter "example.com" and port "443". If the "Safe" status in the results is not "OK" and the "CVE" field displays "CVE-2015-0204", the vulnerability is confirmed. We recommend incorporating this tool into your periodic security compliance checks, especially running validations after updating server software or configurations.