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Change default min TLS version to TLS 1.0

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This commit is contained in:
Manuel Pégourié-Gonnard 2015-03-31 14:21:11 +02:00
parent d16df8f60a
commit 8c8be1ebbb
10 changed files with 16 additions and 31 deletions
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1
ChangeLog
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@ -41,6 +41,7 @@ Semi-API changes (technically public, morally private)
* Remove r and s from ecdsa_context * Remove r and s from ecdsa_context
Default behavior changes Default behavior changes
* The default minimum TLS version is now TLS 1.0.
* RC4 is now blacklisted by default in the SSL/TLS layer, and excluded from the * RC4 is now blacklisted by default in the SSL/TLS layer, and excluded from the
default ciphersuite list returned by ssl_list_ciphersuites() default ciphersuite list returned by ssl_list_ciphersuites()
* Support for receiving SSLv2 ClientHello is now disabled by default at * Support for receiving SSLv2 ClientHello is now disabled by default at

2
include/mbedtls/ssl.h
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@ -1718,7 +1718,7 @@ int ssl_set_max_version( ssl_context *ssl, int major, int minor );
/** /**
* \brief Set the minimum accepted SSL/TLS protocol version * \brief Set the minimum accepted SSL/TLS protocol version
* (Default: SSL_MIN_MAJOR_VERSION, SSL_MIN_MINOR_VERSION) * (Default: TLS 1.0)
* *
* \note Input outside of the SSL_MAX_XXXXX_VERSION and * \note Input outside of the SSL_MAX_XXXXX_VERSION and
* SSL_MIN_XXXXX_VERSION range is ignored. * SSL_MIN_XXXXX_VERSION range is ignored.

4
library/ssl_tls.c
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@ -4953,8 +4953,8 @@ int ssl_init( ssl_context *ssl )
/* /*
* Sane defaults * Sane defaults
*/ */
ssl->min_major_ver = SSL_MIN_MAJOR_VERSION; ssl->min_major_ver = SSL_MAJOR_VERSION_3;
ssl->min_minor_ver = SSL_MIN_MINOR_VERSION; ssl->min_minor_ver = SSL_MINOR_VERSION_1; /* TLS 1.0 */
ssl->max_major_ver = SSL_MAX_MAJOR_VERSION; ssl->max_major_ver = SSL_MAX_MAJOR_VERSION;
ssl->max_minor_ver = SSL_MAX_MINOR_VERSION; ssl->max_minor_ver = SSL_MAX_MINOR_VERSION;

3
programs/ssl/ssl_client1.c
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@ -161,9 +161,6 @@ int main( void )
ssl_set_authmode( &ssl, SSL_VERIFY_OPTIONAL ); ssl_set_authmode( &ssl, SSL_VERIFY_OPTIONAL );
ssl_set_ca_chain( &ssl, &cacert, NULL, "mbed TLS Server 1" ); ssl_set_ca_chain( &ssl, &cacert, NULL, "mbed TLS Server 1" );
/* SSLv3 is deprecated, set minimum to TLS 1.0 */
ssl_set_min_version( &ssl, SSL_MAJOR_VERSION_3, SSL_MINOR_VERSION_1 );
ssl_set_rng( &ssl, ctr_drbg_random, &ctr_drbg ); ssl_set_rng( &ssl, ctr_drbg_random, &ctr_drbg );
ssl_set_dbg( &ssl, my_debug, stdout ); ssl_set_dbg( &ssl, my_debug, stdout );
ssl_set_bio_timeout( &ssl, &server_fd, net_send, net_recv, NULL, 0 ); ssl_set_bio_timeout( &ssl, &server_fd, net_send, net_recv, NULL, 0 );

12
programs/ssl/ssl_client2.c
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@ -83,7 +83,7 @@
#define DFL_ALLOW_LEGACY -2 #define DFL_ALLOW_LEGACY -2
#define DFL_RENEGOTIATE 0 #define DFL_RENEGOTIATE 0
#define DFL_EXCHANGES 1 #define DFL_EXCHANGES 1
#define DFL_MIN_VERSION SSL_MINOR_VERSION_1 #define DFL_MIN_VERSION -1
#define DFL_MAX_VERSION -1 #define DFL_MAX_VERSION -1
#define DFL_ARC4 -1 #define DFL_ARC4 -1
#define DFL_AUTH_MODE -1 #define DFL_AUTH_MODE -1
@ -250,8 +250,8 @@
USAGE_RECSPLIT \ USAGE_RECSPLIT \
"\n" \ "\n" \
" arc4=%%d default: (library default: 0)\n" \ " arc4=%%d default: (library default: 0)\n" \
" min_version=%%s default: \"\" (ssl3)\n" \ " min_version=%%s default: (library default: tls1)\n" \
" max_version=%%s default: \"\" (tls1_2)\n" \ " max_version=%%s default: (library default: tls1_2)\n" \
" force_version=%%s default: \"\" (none)\n" \ " force_version=%%s default: \"\" (none)\n" \
" options: ssl3, tls1, tls1_1, tls1_2, dtls1, dtls1_2\n" \ " options: ssl3, tls1, tls1_1, tls1_2, dtls1, dtls1_2\n" \
"\n" \ "\n" \
@ -1197,17 +1197,17 @@ int main( int argc, char *argv[] )
} }
#endif #endif
if( opt.min_version != -1 ) if( opt.min_version != DFL_MIN_VERSION )
{ {
ret = ssl_set_min_version( &ssl, SSL_MAJOR_VERSION_3, opt.min_version ); ret = ssl_set_min_version( &ssl, SSL_MAJOR_VERSION_3, opt.min_version );
if( ret != 0 && opt.min_version != DFL_MIN_VERSION ) if( ret != 0 )
{ {
polarssl_printf( " failed\n ! selected min_version is not available\n" ); polarssl_printf( " failed\n ! selected min_version is not available\n" );
goto exit; goto exit;
} }
} }
if( opt.max_version != -1 ) if( opt.max_version != DFL_MAX_VERSION )
{ {
ret = ssl_set_max_version( &ssl, SSL_MAJOR_VERSION_3, opt.max_version ); ret = ssl_set_max_version( &ssl, SSL_MAJOR_VERSION_3, opt.max_version );
if( ret != 0 ) if( ret != 0 )

4
programs/ssl/ssl_fork_server.c
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@ -258,10 +258,6 @@ int main( void )
ssl_set_endpoint( &ssl, SSL_IS_SERVER ); ssl_set_endpoint( &ssl, SSL_IS_SERVER );
ssl_set_authmode( &ssl, SSL_VERIFY_NONE ); ssl_set_authmode( &ssl, SSL_VERIFY_NONE );
/* SSLv3 is deprecated, set minimum to TLS 1.0 */
ssl_set_min_version( &ssl, SSL_MAJOR_VERSION_3,
SSL_MINOR_VERSION_1 );
ssl_set_rng( &ssl, ctr_drbg_random, &ctr_drbg ); ssl_set_rng( &ssl, ctr_drbg_random, &ctr_drbg );
ssl_set_dbg( &ssl, my_debug, stdout ); ssl_set_dbg( &ssl, my_debug, stdout );
ssl_set_bio_timeout( &ssl, &client_fd, net_send, net_recv, NULL, 0 ); ssl_set_bio_timeout( &ssl, &client_fd, net_send, net_recv, NULL, 0 );

3
programs/ssl/ssl_mail_client.c
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@ -602,9 +602,6 @@ int main( int argc, char *argv[] )
* but makes interop easier in this simplified example */ * but makes interop easier in this simplified example */
ssl_set_authmode( &ssl, SSL_VERIFY_OPTIONAL ); ssl_set_authmode( &ssl, SSL_VERIFY_OPTIONAL );
/* SSLv3 is deprecated, set minimum to TLS 1.0 */
ssl_set_min_version( &ssl, SSL_MAJOR_VERSION_3, SSL_MINOR_VERSION_1 );
ssl_set_rng( &ssl, ctr_drbg_random, &ctr_drbg ); ssl_set_rng( &ssl, ctr_drbg_random, &ctr_drbg );
ssl_set_dbg( &ssl, my_debug, stdout ); ssl_set_dbg( &ssl, my_debug, stdout );
ssl_set_bio_timeout( &ssl, &server_fd, net_send, net_recv, NULL, 0 ); ssl_set_bio_timeout( &ssl, &server_fd, net_send, net_recv, NULL, 0 );

3
programs/ssl/ssl_pthread_server.c
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@ -168,9 +168,6 @@ static void *handle_ssl_connection( void *data )
ssl_set_endpoint( &ssl, SSL_IS_SERVER ); ssl_set_endpoint( &ssl, SSL_IS_SERVER );
ssl_set_authmode( &ssl, SSL_VERIFY_NONE ); ssl_set_authmode( &ssl, SSL_VERIFY_NONE );
/* SSLv3 is deprecated, set minimum to TLS 1.0 */
ssl_set_min_version( &ssl, SSL_MAJOR_VERSION_3, SSL_MINOR_VERSION_1 );
ssl_set_rng( &ssl, ctr_drbg_random, &ctr_drbg ); ssl_set_rng( &ssl, ctr_drbg_random, &ctr_drbg );
ssl_set_dbg( &ssl, my_mutexed_debug, stdout ); ssl_set_dbg( &ssl, my_mutexed_debug, stdout );

3
programs/ssl/ssl_server.c
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@ -197,9 +197,6 @@ int main( void )
ssl_set_endpoint( &ssl, SSL_IS_SERVER ); ssl_set_endpoint( &ssl, SSL_IS_SERVER );
ssl_set_authmode( &ssl, SSL_VERIFY_NONE ); ssl_set_authmode( &ssl, SSL_VERIFY_NONE );
/* SSLv3 is deprecated, set minimum to TLS 1.0 */
ssl_set_min_version( &ssl, SSL_MAJOR_VERSION_3, SSL_MINOR_VERSION_1 );
ssl_set_rng( &ssl, ctr_drbg_random, &ctr_drbg ); ssl_set_rng( &ssl, ctr_drbg_random, &ctr_drbg );
ssl_set_dbg( &ssl, my_debug, stdout ); ssl_set_dbg( &ssl, my_debug, stdout );

12
programs/ssl/ssl_server2.c
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@ -99,7 +99,7 @@
#define DFL_RENEGO_DELAY -2 #define DFL_RENEGO_DELAY -2
#define DFL_RENEGO_PERIOD -1 #define DFL_RENEGO_PERIOD -1
#define DFL_EXCHANGES 1 #define DFL_EXCHANGES 1
#define DFL_MIN_VERSION SSL_MINOR_VERSION_1 #define DFL_MIN_VERSION -1
#define DFL_MAX_VERSION -1 #define DFL_MAX_VERSION -1
#define DFL_ARC4 -1 #define DFL_ARC4 -1
#define DFL_AUTH_MODE -1 #define DFL_AUTH_MODE -1
@ -316,8 +316,8 @@
USAGE_ETM \ USAGE_ETM \
"\n" \ "\n" \
" arc4=%%d default: (library default: 0)\n" \ " arc4=%%d default: (library default: 0)\n" \
" min_version=%%s default: \"ssl3\"\n" \ " min_version=%%s default: (library default: tls1)\n" \
" max_version=%%s default: \"tls1_2\"\n" \ " max_version=%%s default: (library default: tls1_2)\n" \
" force_version=%%s default: \"\" (none)\n" \ " force_version=%%s default: \"\" (none)\n" \
" options: ssl3, tls1, tls1_1, tls1_2, dtls1, dtls1_2\n" \ " options: ssl3, tls1, tls1_1, tls1_2, dtls1, dtls1_2\n" \
"\n" \ "\n" \
@ -1734,17 +1734,17 @@ int main( int argc, char *argv[] )
} }
#endif #endif
if( opt.min_version != -1 ) if( opt.min_version != DFL_MIN_VERSION )
{ {
ret = ssl_set_min_version( &ssl, SSL_MAJOR_VERSION_3, opt.min_version ); ret = ssl_set_min_version( &ssl, SSL_MAJOR_VERSION_3, opt.min_version );
if( ret != 0 && opt.min_version != DFL_MIN_VERSION ) if( ret != 0 )
{ {
polarssl_printf( " failed\n ! selected min_version is not available\n" ); polarssl_printf( " failed\n ! selected min_version is not available\n" );
goto exit; goto exit;
} }
} }
if( opt.max_version != -1 ) if( opt.max_version != DFL_MIN_VERSION )
{ {
ret = ssl_set_max_version( &ssl, SSL_MAJOR_VERSION_3, opt.max_version ); ret = ssl_set_max_version( &ssl, SSL_MAJOR_VERSION_3, opt.max_version );
if( ret != 0 ) if( ret != 0 )