Change cipher defaults

Switch cipher defaults to HIGH:!aNULL:@STRENGTH (OpenSSL) or
SECURE128 (GnuTLS).
This commit is contained in:
Federico G. Schwindt
2013-09-17 17:15:24 +01:00
parent d0977258ee
commit 0985d69cc6
5 changed files with 34 additions and 42 deletions
+12 -2
View File
@@ -93,6 +93,12 @@ static void Init_Server_Struct PARAMS(( CONF_SERVER *Server ));
#define DEFAULT_LISTEN_ADDRSTR "0.0.0.0"
#endif
#ifdef HAVE_LIBSSL
#define DEFAULT_CIPHERS "HIGH:!aNULL:@STRENGTH"
#endif
#ifdef HAVE_LIBGNUTLS
#define DEFAULT_CIPHERS "SECURE128"
#endif
#ifdef SSL_SUPPORT
@@ -435,8 +441,8 @@ Conf_Test( void )
puts("[SSL]");
printf(" CertFile = %s\n", Conf_SSLOptions.CertFile
? Conf_SSLOptions.CertFile : "");
printf(" CipherList = %s\n", Conf_SSLOptions.CipherList
? Conf_SSLOptions.CipherList : "");
printf(" CipherList = %s\n", Conf_SSLOptions.CipherList ?
Conf_SSLOptions.CipherList : DEFAULT_CIPHERS);
printf(" DHFile = %s\n", Conf_SSLOptions.DHFile
? Conf_SSLOptions.DHFile : "");
printf(" KeyFile = %s\n", Conf_SSLOptions.KeyFile
@@ -1032,6 +1038,10 @@ Read_Config(bool TestOnly, bool IsStarting)
CheckFileReadable("CertFile", Conf_SSLOptions.CertFile);
CheckFileReadable("DHFile", Conf_SSLOptions.DHFile);
CheckFileReadable("KeyFile", Conf_SSLOptions.KeyFile);
/* Set the default ciphers if none were configured */
if (!Conf_SSLOptions.CipherList)
Conf_SSLOptions.CipherList = strdup_warn(DEFAULT_CIPHERS);
#endif
return true;
+10 -30
View File
@@ -306,17 +306,10 @@ ConnSSL_InitLibrary( void )
if (!ConnSSL_LoadServerKey_openssl(newctx))
goto out;
if(Conf_SSLOptions.CipherList && *Conf_SSLOptions.CipherList) {
if(SSL_CTX_set_cipher_list(newctx, Conf_SSLOptions.CipherList) == 0 ) {
Log(LOG_ERR,
"Failed to apply OpenSSL cipher list \"%s\"!",
Conf_SSLOptions.CipherList);
goto out;
} else {
Log(LOG_INFO,
"Successfully applied OpenSSL cipher list \"%s\".",
Conf_SSLOptions.CipherList);
}
if (SSL_CTX_set_cipher_list(newctx, Conf_SSLOptions.CipherList) == 0) {
Log(LOG_ERR, "Failed to apply OpenSSL cipher list \"%s\"!",
Conf_SSLOptions.CipherList);
goto out;
}
SSL_CTX_set_options(newctx, SSL_OP_SINGLE_DH_USE|SSL_OP_NO_SSLv2);
@@ -352,25 +345,12 @@ out:
if (!ConnSSL_LoadServerKey_gnutls())
goto out;
if(Conf_SSLOptions.CipherList && *Conf_SSLOptions.CipherList) {
err = gnutls_priority_init(&priorities_cache,
Conf_SSLOptions.CipherList, NULL);
if (err != GNUTLS_E_SUCCESS) {
Log(LOG_ERR,
"Failed to apply GnuTLS cipher list \"%s\"!",
Conf_SSLOptions.CipherList);
goto out;
}
Log(LOG_INFO,
"Successfully applied GnuTLS cipher list \"%s\".",
if (gnutls_priority_init(&priorities_cache, Conf_SSLOptions.CipherList,
NULL) != GNUTLS_E_SUCCESS) {
Log(LOG_ERR,
"Failed to apply GnuTLS cipher list \"%s\"!",
Conf_SSLOptions.CipherList);
} else {
err = gnutls_priority_init(&priorities_cache, "NORMAL", NULL);
if (err != GNUTLS_E_SUCCESS) {
Log(LOG_ERR,
"Failed to apply GnuTLS cipher list \"NORMAL\"!");
goto out;
}
goto out;
}
Log(LOG_INFO, "GnuTLS %s initialized.", gnutls_check_version(NULL));
@@ -505,7 +485,7 @@ ConnSSL_Init_SSL(CONNECTION *c)
#ifdef HAVE_LIBGNUTLS
Conn_OPTION_ADD(c, CONN_SSL);
ret = gnutls_priority_set(c->ssl_state.gnutls_session, priorities_cache);
if (ret != 0) {
if (ret != GNUTLS_E_SUCCESS) {
Log(LOG_ERR, "Failed to set GnuTLS session priorities: %s",
gnutls_strerror(ret));
ConnSSL_Free(c);