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CONC-250: SSL hostname verification for SubjectAltNames

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Add hostname verification for SAN (OpenSSL)
This commit is contained in:
Georg Richter
2017-05-08 13:55:21 +02:00
parent 6846f6a3ff
commit a86b36d08f
2 changed files with 14 additions and 6 deletions
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4
libmariadb/mariadb_lib.c
View File

@@ -1522,8 +1522,8 @@ MYSQL *mthd_my_real_connect(MYSQL *mysql, const char *host, const char *user,
strcpy(mysql->net.sqlstate, "00000");
/* connection established, apply timeouts */
ma_pvio_set_timeout(mysql->net.pvio, PVIO_READ_TIMEOUT, mysql->options.read_timeout);
ma_pvio_set_timeout(mysql->net.pvio, PVIO_WRITE_TIMEOUT, mysql->options.write_timeout);
ma_pvio_set_timeout(mysql->net.pvio, PVIO_READ_TIMEOUT, mysql->options.read_timeout * 1000);
ma_pvio_set_timeout(mysql->net.pvio, PVIO_WRITE_TIMEOUT, mysql->options.write_timeout * 1000);
return(mysql);
error:

16
libmariadb/secure/openssl.c
View File

@@ -30,6 +30,9 @@
#include <openssl/conf.h>
#include <openssl/md4.h>
#if OPENSSL_VERSION_NUMBER >= 0x10002000L && !defined(LIBRESSL_VERSION_NUMBER)
#define HAVE_OPENSSL_CHECK_HOST 1
#endif
#ifdef HAVE_TLS_SESSION_CACHE
#undef HAVE_TLS_SESSION_CACHE
#endif
@@ -627,13 +630,15 @@ int ma_tls_verify_server_cert(MARIADB_TLS *ctls)
{
X509 *cert;
MYSQL *mysql;
SSL *ssl;
MARIADB_PVIO *pvio;
#if !defined(HAVE_OPENSSL_CHECK_HOST)
X509_NAME *x509sn;
int cn_pos;
X509_NAME_ENTRY *cn_entry;
ASN1_STRING *cn_asn1;
const char *cn_str;
SSL *ssl;
MARIADB_PVIO *pvio;
#endif
if (!ctls || !ctls->ssl)
return 1;
@@ -655,7 +660,10 @@ int ma_tls_verify_server_cert(MARIADB_TLS *ctls)
ER(CR_SSL_CONNECTION_ERROR), "Unable to get server certificate");
return 1;
}
#ifdef HAVE_OPENSSL_CHECK_HOST
if (X509_check_host(cert, mysql->host, 0, 0, 0) != 1)
goto error;
#else
x509sn= X509_get_subject_name(cert);
if ((cn_pos= X509_NAME_get_index_by_NID(x509sn, NID_commonName, -1)) < 0)
@@ -679,7 +687,7 @@ int ma_tls_verify_server_cert(MARIADB_TLS *ctls)
if (strcmp(cn_str, mysql->host))
goto error;
#endif
X509_free(cert);
return 0;