InfraGuard

Detection rule: Invalid TLS Handshake

Handshake message length/structure violation.

WarningTLS AnomalySuricata

What it detects

Handshake message length/structure violation.

Why it fires

Possible fuzzing, abnormal stack or exploit attempt.

Worst case

TLS exploit

Matching signatures

handshake invalidinvalid handshake

Track these versions on your own servers

InfraGuard collects installed software versions from every server and flags the ones with known vulnerabilities. Self-hosted — nothing leaves your network.

Weekly exploited-vulnerability digest

The KEV additions that matter for self-hosted servers, once a week. No other mail.