SSL CCS Injection Vulnerability Scanner

What is SSL CCS Injection Vulnerability?

SSL CCS Injection (Cumulative Cipher Suite Injection) is a vulnerability that exploits the SSL/TLS protocol by injecting additional cipher suite options into the handshake process. This attack targets the way SSL/TLS handles changes between cipher suites during the connection negotiation.

An attacker can manipulate the handshake process by injecting an additional cipher suite into the Client Hello message, which forces the server to use weaker encryption methods. This vulnerability allows attackers to downgrade the security of the connection, potentially exposing encrypted data to man-in-the-middle attacks or revealing sensitive information.

Mitigations for CCS Injection involve disabling weak or insecure cipher suites, enforcing modern SSL/TLS protocols like TLS 1.2 or TLS 1.3, and setting strict policy controls on the negotiation of cipher suites to prevent unwanted downgrades.