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Check tls handshake and LS 1.0, 1.1 or 1.2 connections

This commit is contained in:
Ozzyboshi 2022-03-17 12:26:36 +01:00 committed by Kaian
parent 7ed9942c85
commit 8fc1e5c9a3
1 changed files with 14 additions and 0 deletions
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14
src/capture_gnutls.c
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@ -477,6 +477,20 @@ tls_process_record_ssl2(struct SSLConnection *conn, const uint8_t *payload,
// Client Hello SSLv2
struct ClientHelloSSLv2 *clienthello = (struct ClientHelloSSLv2 *) fragment;
// Check we have a TLS handshake
if (clienthello->client_version.major != 0x03) {
tls_connection_destroy(conn);
return 1;
}
// Only TLS 1.0, 1.1 or 1.2 connections
if (clienthello->client_version.minor != 0x01
&& clienthello->client_version.minor != 0x02
&& clienthello->client_version.minor != 0x03) {
tls_connection_destroy(conn);
return 1;
}
// Store TLS version
conn->version = clienthello->client_version.minor;