SSL Beast Vulnerability Checker
Test your SSL/TLS configuration for BEAST vulnerability. Ensure you are using a secure version of TLS to protect your encrypted communications.
Short Info
Level
Medium
Single Scan
Single Scan
Can be used by
Asset Owner
Estimated Time
20 seconds
Time Interval
1 month 4 days
Scan only one
Domain, IPv4, Subdomain
Toolbox
-
What is SSL BEAST Vulnerability?
SSL BEAST (Browser Exploit Against SSL/TLS) is a vulnerability discovered in 2011 that targets the SSL/TLS protocol, particularly when Cipher Block Chaining (CBC) mode is used. By exploiting this weakness, an attacker can execute a man-in-the-middle (MITM) attack, injecting malicious code to decrypt sensitive information from secure communications.
The vulnerability takes advantage of predictable initialization vectors (IVs) in CBC mode. By hijacking a session and forcing specific conditions, the attacker can retrieve encrypted data by observing the patterns in multiple transmissions. While TLS 1.2 and later versions address this issue, older systems and browsers remain at risk.
