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Merge pull request #4736 from daverodgman/alert_bugfixes_2.x

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Backport 2.x: Fix alert raised for invalid fragment length
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Dave Rodgman 2021-06-30 09:02:49 +01:00 committed by GitHub
parent bdba86f4d5 7ed75e21c9
commit 0a4046e9ca
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GPG key ID: 4AEE18F83AFDEB23
4 changed files with 17 additions and 12 deletions
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5
ChangeLog.d/fix_tls_alert_codes.txt Normal file
View file

@ -0,0 +1,5 @@
Bugfix
* Fix which alert is sent in some cases to conform to the
applicable RFC: on an invalid Finished message value, an
invalid max_fragment_length extension, or an
unsupported extension used by the server.

12
library/ssl_cli.c
View file

@ -1525,7 +1525,7 @@ static int ssl_parse_max_fragment_length_ext( mbedtls_ssl_context *ssl,
mbedtls_ssl_send_alert_message(
ssl,
MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
}
@ -1572,7 +1572,7 @@ static int ssl_parse_cid_ext( mbedtls_ssl_context *ssl,
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "CID extension unexpected" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_EXT );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
}
@ -1628,7 +1628,7 @@ static int ssl_parse_encrypt_then_mac_ext( mbedtls_ssl_context *ssl,
mbedtls_ssl_send_alert_message(
ssl,
MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_EXT );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
}
@ -1654,7 +1654,7 @@ static int ssl_parse_extended_ms_ext( mbedtls_ssl_context *ssl,
mbedtls_ssl_send_alert_message(
ssl,
MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_EXT );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
}
@ -1679,7 +1679,7 @@ static int ssl_parse_session_ticket_ext( mbedtls_ssl_context *ssl,
mbedtls_ssl_send_alert_message(
ssl,
MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_EXT );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
}
@ -1785,7 +1785,7 @@ static int ssl_parse_alpn_ext( mbedtls_ssl_context *ssl,
mbedtls_ssl_send_alert_message(
ssl,
MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_EXT );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
}

2
library/ssl_tls.c
View file

@ -3610,7 +3610,7 @@ int mbedtls_ssl_parse_finished( mbedtls_ssl_context *ssl )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad finished message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
MBEDTLS_SSL_ALERT_MSG_DECRYPT_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_FINISHED );
}

10
tests/ssl-opt.sh
View file

@ -5992,7 +5992,7 @@ run_test "ECJPAKE: working, TLS" \
-S "SSL - Verification of the message MAC failed"
server_needs_more_time 1
requires_config_enabled MBEDTLS_KEY_EXCHANGE_ECJPAKE
requires_config_enabled MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED
run_test "ECJPAKE: password mismatch, TLS" \
"$P_SRV debug_level=3 ecjpake_pw=bla" \
"$P_CLI debug_level=3 ecjpake_pw=bad \
@ -6001,7 +6001,7 @@ run_test "ECJPAKE: password mismatch, TLS" \
-C "re-using cached ecjpake parameters" \
-s "SSL - Verification of the message MAC failed"
requires_config_enabled MBEDTLS_KEY_EXCHANGE_ECJPAKE
requires_config_enabled MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED
run_test "ECJPAKE: working, DTLS" \
"$P_SRV debug_level=3 dtls=1 ecjpake_pw=bla" \
"$P_CLI debug_level=3 dtls=1 ecjpake_pw=bla \
@ -6010,7 +6010,7 @@ run_test "ECJPAKE: working, DTLS" \
-c "re-using cached ecjpake parameters" \
-S "SSL - Verification of the message MAC failed"
requires_config_enabled MBEDTLS_KEY_EXCHANGE_ECJPAKE
requires_config_enabled MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED
run_test "ECJPAKE: working, DTLS, no cookie" \
"$P_SRV debug_level=3 dtls=1 ecjpake_pw=bla cookies=0" \
"$P_CLI debug_level=3 dtls=1 ecjpake_pw=bla \
@ -6020,7 +6020,7 @@ run_test "ECJPAKE: working, DTLS, no cookie" \
-S "SSL - Verification of the message MAC failed"
server_needs_more_time 1
requires_config_enabled MBEDTLS_KEY_EXCHANGE_ECJPAKE
requires_config_enabled MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED
run_test "ECJPAKE: password mismatch, DTLS" \
"$P_SRV debug_level=3 dtls=1 ecjpake_pw=bla" \
"$P_CLI debug_level=3 dtls=1 ecjpake_pw=bad \
@ -6030,7 +6030,7 @@ run_test "ECJPAKE: password mismatch, DTLS" \
-s "SSL - Verification of the message MAC failed"
# for tests with configs/config-thread.h
requires_config_enabled MBEDTLS_KEY_EXCHANGE_ECJPAKE
requires_config_enabled MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED
run_test "ECJPAKE: working, DTLS, nolog" \
"$P_SRV dtls=1 ecjpake_pw=bla" \
"$P_CLI dtls=1 ecjpake_pw=bla \