SSL TLS_FALLBACK_SCSV Mitigation Checker
Check your SSL/TLS configuration for TLS_FALLBACK_SCSV vulnerability mitigation. Ensure both client and server support this extension to prevent fallback attacks.
Short Info
Level
Low
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
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What is SSL TLS_FALLBACK_SCSV Mitigation Vulnerability?
SSL TLS_FALLBACK_SCSV is a mitigation used to prevent attacks that force a connection downgrade from a secure protocol (e.g., TLS 1.2 or TLS 1.3) to an older, weaker version (e.g., SSL 2.0 or SSL 3.0). These attacks, known as fallback attacks, exploit insecure implementations by forcing the use of weaker encryption methods that are susceptible to known vulnerabilities like POODLE or BEAST.
The TLS_FALLBACK_SCSV mechanism prevents these downgrade attacks by ensuring that only the specified protocol version is accepted during the handshake process. If an attacker tries to force the connection to use a lower version, the client can reject it and maintain the higher, more secure protocol.
Mitigation involves enabling the TLS_FALLBACK_SCSV extension on both the client and server to prevent protocol downgrade attacks. It is important to ensure that both the client and server are configured to use this extension to effectively protect against fallback vulnerabilities.
