What are SSL and TLS Vulnerabilities

Transport Layer Security (TLS) and Secure Sockets Layer (SSL) are the standard technologies for keeping an Internet connection secure and protecting any sensitive information sent between two systems. In addition, they prevent criminals from reading and modifying any transferred data, including information that could be considered personal. The two systems can be a server and a client (e.g., e-commerce and a browser) or server-to-server.

How Do You Prevent SSL and TLS Vulnerabilities

We always recommend getting the newest updates, as updated versions are the safest. Also, remove unused features already activated and limit accounts with administrative rights, among others. 

What is an SSL/TLS Vulnerability Scanner

A SSL/TLS vulnerability scanner can help identify the following vulnerabilities:

• TLS Session Resumption
• Certificate Revocation
• Trusted Certificates
• HSTS
• Missing SSL CAA record
• Secure Cookies
• TLS Configuration
• TLS Certificates
• LUCKY13
• CRIME
• BREACH Attacks
• TLS Encryption
• Perfect Forward Secrecy
• TLS Key Size
• Deprecated SSL Protocol Versions
• Specific certificate vulnerabilities
• SSL Cipher Order
• TLS Warning
• Security Headers
   

How Does the SSL/TLS Scanner Work

The SSL Scanner uses testssl.sh, a command-line tool that checks a server’s service on any port to support TLS/SSL ciphers, protocols as well as recent cryptographic flaws, and more.

All issues found are further deciphered by our SSL Scanner and appropriately designed into a comprehensible report.

Why Should You Test for SSL/TLS Vulnerabilities

It is crucial to check for Secure Sockets Layer (SSL) and Transport Layer Security (TLS) for possible security holes as they are protocols encrypting your network connections.
The most common SSL and TLS issues we see are:

• Implementing self-signed certificates
• Certificate validity expiration
• Outdated OpenSSL versions
• Counting on default settings and no personalization
• Incorrect trust chains
• Misconfigured TLS and SSL

Making sure your protocols are correctly set and running regular vulnerability scans will help you stay on top of your SSL and TLS configuration and avoid common attacks.

How Do You Run an SSL/TLS Test

You can quickly set up your scan target and run a dynamic application security test with a few clicks. This scan takes just a few minutes and checks for the most common SSL and TLS vulnerabilities.

Additionally, you can verify the scan target and run a full scan to check for all related protocol and misconfiguration exposures. This scan takes longer as it depends on the size of your web application. The full scan also allows you to scan for other OWASP Top 10 vulnerabilities, as well as Privilege Escalation.

Veracode Dynamic Analysis (DAST) includes an SSL/TLS scanner tool that helps you periodically check your site with a click of a button for attack vectors. This saves you time and lets you be aware of security vulnerabilities like a professional cybersecurity expert. Start a 14-day free trial of Veracode DAST Essentials today.