Merge new security defaults for programs (RC4 disabled, SSL3 disabled)

ChangeLog

@@ -33,6 +33,8 @@ Features
      for pre-1.2 clients when multiple certificates are available.
    * Add support for getrandom() syscall on recent Linux kernels with Glibc or
      a compatible enough libc (eg uClibc).
+   * Add ssl_set_arc4_support() to make it easier to diable RC4 at runtime
+     while using the default ciphersuite list.
 
 Bugfix
    * Stack buffer overflow if ctr_drbg_update() is called with too large
@@ -60,6 +62,8 @@ Changes
      with a suitable (extended)KeyUsage or curve or no PSK set.
    * It is now possible to disable neogtiation of truncated HMAC server-side
      at runtime with ssl_set_truncated_hmac().
+   * Example programs for SSL client and server now disable SSLv3 by default.
+   * Example programs for SSL client and server now disable RC4 by default.
 
 = PolarSSL 1.3.9 released 2014-10-20
 Security

include/polarssl/ssl.h

@@ -257,6 +257,9 @@
 #define SSL_CBC_RECORD_SPLITTING_DISABLED   -1
 #define SSL_CBC_RECORD_SPLITTING_ENABLED     0
 
+#define SSL_ARC4_ENABLED                0
+#define SSL_ARC4_DISABLED               1
+
 /**
  * \name SECTION: Module settings
  *
@@ -748,6 +751,7 @@ struct _ssl_context
 #if defined(POLARSSL_SSL_EXTENDED_MASTER_SECRET)
     char extended_ms;           /*!< flag for extended master secret  */
 #endif
+    char arc4_disabled;         /*!< flag for disabling RC4           */
 
     /*
      * Callbacks (RNG, debug, I/O, verification)
@@ -1438,8 +1442,10 @@ void ssl_set_max_version( ssl_context *ssl, int major, int minor );
  * \brief          Set the minimum accepted SSL/TLS protocol version
  *                 (Default: SSL_MIN_MAJOR_VERSION, SSL_MIN_MINOR_VERSION)
  *
- *                 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.
+ *
+ * \note           SSL_MINOR_VERSION_0 (SSL v3) should be avoided.
  *
  * \param ssl      SSL context
  * \param major    Major version number (only SSL_MAJOR_VERSION_3 supported)
@@ -1502,6 +1508,21 @@ void ssl_set_encrypt_then_mac( ssl_context *ssl, char etm );
 void ssl_set_extended_master_secret( ssl_context *ssl, char ems );
 #endif /* POLARSSL_SSL_EXTENDED_MASTER_SECRET */
 
+/**
+ * \brief          Disable or enable support for RC4
+ *                 (Default: SSL_ARC4_ENABLED)
+ *
+ * \note           Though the default is RC4 for compatibility reasons in the
+ *                 1.3 branch, the recommended value is SSL_ARC4_DISABLED.
+ *
+ * \note           This function will likely be removed in future versions as
+ *                 RC4 will then be disabled by default at compile time.
+ *
+ * \param ssl      SSL context
+ * \param arc4     SSL_ARC4_ENABLED or SSL_ARC4_DISABLED
+ */
+void ssl_set_arc4_support( ssl_context *ssl, char arc4 );
+
 #if defined(POLARSSL_SSL_MAX_FRAGMENT_LENGTH)
 /**
  * \brief          Set the maximum fragment length to emit and/or negotiate

library/ssl_cli.c

@@ -656,6 +656,10 @@ static int ssl_write_client_hello( ssl_context *ssl )
             ciphersuite_info->max_minor_ver < ssl->min_minor_ver )
             continue;
 
+        if( ssl->arc4_disabled == SSL_ARC4_DISABLED &&
+            ciphersuite_info->cipher == POLARSSL_CIPHER_ARC4_128 )
+            continue;
+
         SSL_DEBUG_MSG( 3, ( "client hello, add ciphersuite: %2d",
                        ciphersuites[i] ) );
 
@@ -1018,6 +1022,7 @@ static int ssl_parse_server_hello( ssl_context *ssl )
     int renegotiation_info_seen = 0;
 #endif
     int handshake_failure = 0;
+    const ssl_ciphersuite_t *suite_info;
 #if defined(POLARSSL_DEBUG_C)
     uint32_t t;
 #endif
@@ -1202,6 +1207,16 @@ static int ssl_parse_server_hello( ssl_context *ssl )
     SSL_DEBUG_MSG( 3, ( "server hello, chosen ciphersuite: %d", i ) );
     SSL_DEBUG_MSG( 3, ( "server hello, compress alg.: %d", buf[41 + n] ) );
 
+    suite_info = ssl_ciphersuite_from_id( ssl->session_negotiate->ciphersuite );
+    if( suite_info == NULL ||
+        ( ssl->arc4_disabled &&
+          suite_info->cipher == POLARSSL_CIPHER_ARC4_128 ) )
+    {
+        SSL_DEBUG_MSG( 1, ( "bad server hello message" ) );
+        return( POLARSSL_ERR_SSL_BAD_HS_SERVER_HELLO );
+    }
+
+
     i = 0;
     while( 1 )
     {

library/ssl_srv.c

@@ -920,6 +920,10 @@ static int ssl_ciphersuite_match( ssl_context *ssl, int suite_id,
         suite_info->max_minor_ver < ssl->minor_ver )
         return( 0 );
 
+    if( ssl->arc4_disabled == SSL_ARC4_DISABLED &&
+            suite_info->cipher == POLARSSL_CIPHER_ARC4_128 )
+        return( 0 );
+
 #if defined(POLARSSL_ECDH_C) || defined(POLARSSL_ECDSA_C)
     if( ssl_ciphersuite_uses_ec( suite_info ) &&
         ( ssl->handshake->curves == NULL ||

library/ssl_tls.c

@@ -4245,6 +4245,11 @@ void ssl_set_extended_master_secret( ssl_context *ssl, char ems )
 }
 #endif
 
+void ssl_set_arc4_support( ssl_context *ssl, char arc4 )
+{
+    ssl->arc4_disabled = arc4;
+}
+
 #if defined(POLARSSL_SSL_MAX_FRAGMENT_LENGTH)
 int ssl_set_max_frag_len( ssl_context *ssl, unsigned char mfl_code )
 {

programs/ssl/ssl_client1.c

@@ -168,6 +168,11 @@ int main( int argc, char *argv[] )
     ssl_set_authmode( &ssl, SSL_VERIFY_OPTIONAL );
     ssl_set_ca_chain( &ssl, &cacert, NULL, "PolarSSL Server 1" );
 
+    /* SSLv3 is deprecated, set minimum to TLS 1.0 */
+    ssl_set_min_version( &ssl, SSL_MAJOR_VERSION_3, SSL_MINOR_VERSION_1 );
+    /* RC4 is deprecated, disable it */
+    ssl_set_arc4_support( &ssl, SSL_ARC4_DISABLED );
+
     ssl_set_rng( &ssl, ctr_drbg_random, &ctr_drbg );
     ssl_set_dbg( &ssl, my_debug, stdout );
     ssl_set_bio( &ssl, net_recv, &server_fd,

programs/ssl/ssl_client2.c

@@ -86,8 +86,9 @@ int main( int argc, char *argv[] )
 #define DFL_ALLOW_LEGACY        -2
 #define DFL_RENEGOTIATE         0
 #define DFL_EXCHANGES           1
-#define DFL_MIN_VERSION         -1
+#define DFL_MIN_VERSION         SSL_MINOR_VERSION_1
 #define DFL_MAX_VERSION         -1
+#define DFL_ARC4                SSL_ARC4_DISABLED
 #define DFL_AUTH_MODE           SSL_VERIFY_REQUIRED
 #define DFL_MFL_CODE            SSL_MAX_FRAG_LEN_NONE
 #define DFL_TRUNC_HMAC          -1
@@ -129,6 +130,7 @@ struct options
     int exchanges;              /* number of data exchanges                 */
     int min_version;            /* minimum protocol version accepted        */
     int max_version;            /* maximum protocol version accepted        */
+    int arc4;                   /* flag for arc4 suites support             */
     int auth_mode;              /* verify mode for connection               */
     unsigned char mfl_code;     /* code for maximum fragment length         */
     int trunc_hmac;             /* negotiate truncated hmac or not          */
@@ -363,6 +365,7 @@ static int my_verify( void *data, x509_crt *crt, int depth, int *flags )
     "\n"                                                    \
     "    min_version=%%s      default: \"\" (ssl3)\n"       \
     "    max_version=%%s      default: \"\" (tls1_2)\n"     \
+    "    arc4=%%d             default: 0 (disabled)\n"      \
     "    force_version=%%s    default: \"\" (none)\n"       \
     "                        options: ssl3, tls1, tls1_1, tls1_2\n" \
     "    auth_mode=%%s        default: \"required\"\n"      \
@@ -453,6 +456,7 @@ int main( int argc, char *argv[] )
     opt.exchanges           = DFL_EXCHANGES;
     opt.min_version         = DFL_MIN_VERSION;
     opt.max_version         = DFL_MAX_VERSION;
+    opt.arc4                = DFL_ARC4;
     opt.auth_mode           = DFL_AUTH_MODE;
     opt.mfl_code            = DFL_MFL_CODE;
     opt.trunc_hmac          = DFL_TRUNC_HMAC;
@@ -627,6 +631,15 @@ int main( int argc, char *argv[] )
             else
                 goto usage;
         }
+        else if( strcmp( p, "arc4" ) == 0 )
+        {
+            switch( atoi( q ) )
+            {
+                case 0:     opt.arc4 = SSL_ARC4_DISABLED;   break;
+                case 1:     opt.arc4 = SSL_ARC4_ENABLED;    break;
+                default:    goto usage;
+            }
+        }
         else if( strcmp( p, "force_version" ) == 0 )
         {
             if( strcmp( q, "ssl3" ) == 0 )
@@ -1011,8 +1024,11 @@ int main( int argc, char *argv[] )
     }
 #endif
 
+    /* RC4 setting is redundant if we use only one ciphersuite */
     if( opt.force_ciphersuite[0] != DFL_FORCE_CIPHER )
         ssl_set_ciphersuites( &ssl, opt.force_ciphersuite );
+    else
+        ssl_set_arc4_support( &ssl, opt.arc4 );
 
     if( opt.allow_legacy != DFL_ALLOW_LEGACY )
         ssl_legacy_renegotiation( &ssl, opt.allow_legacy );

programs/ssl/ssl_fork_server.c

@@ -264,6 +264,12 @@ int main( int argc, char *argv[] )
         ssl_set_endpoint( &ssl, SSL_IS_SERVER );
         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 );
+        /* RC4 is deprecated, disable it */
+        ssl_set_arc4_support( &ssl, SSL_ARC4_DISABLED );
+
         ssl_set_rng( &ssl, ctr_drbg_random, &ctr_drbg );
         ssl_set_dbg( &ssl, my_debug, stdout );
         ssl_set_bio( &ssl, net_recv, &client_fd,

programs/ssl/ssl_mail_client.c

@@ -601,6 +601,11 @@ int main( int argc, char *argv[] )
      * but makes interop easier in this simplified example */
     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 );
+    /* RC4 is deprecated, disable it */
+    ssl_set_arc4_support( &ssl, SSL_ARC4_DISABLED );
+
     ssl_set_rng( &ssl, ctr_drbg_random, &ctr_drbg );
     ssl_set_dbg( &ssl, my_debug, stdout );
     ssl_set_bio( &ssl, net_recv, &server_fd,

programs/ssl/ssl_pthread_server.c

@@ -165,6 +165,11 @@ static void *handle_ssl_connection( void *data )
     ssl_set_endpoint( &ssl, SSL_IS_SERVER );
     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 );
+    /* RC4 is deprecated, disable it */
+    ssl_set_arc4_support( &ssl, SSL_ARC4_DISABLED );
+
     ssl_set_rng( &ssl, ctr_drbg_random, &ctr_drbg );
     ssl_set_dbg( &ssl, my_mutexed_debug, stdout );
 

programs/ssl/ssl_server.c

@@ -198,6 +198,11 @@ int main( int argc, char *argv[] )
     ssl_set_endpoint( &ssl, SSL_IS_SERVER );
     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 );
+    /* RC4 is deprecated, disable it */
+    ssl_set_arc4_support( &ssl, SSL_ARC4_DISABLED );
+
     ssl_set_rng( &ssl, ctr_drbg_random, &ctr_drbg );
     ssl_set_dbg( &ssl, my_debug, stdout );
 

programs/ssl/ssl_server2.c

@@ -106,8 +106,9 @@ int main( int argc, char *argv[] )
 #define DFL_RENEGO_DELAY        -2
 #define DFL_RENEGO_PERIOD       -1
 #define DFL_EXCHANGES           1
-#define DFL_MIN_VERSION         -1
+#define DFL_MIN_VERSION         SSL_MINOR_VERSION_1
 #define DFL_MAX_VERSION         -1
+#define DFL_ARC4                SSL_ARC4_DISABLED
 #define DFL_AUTH_MODE           SSL_VERIFY_OPTIONAL
 #define DFL_MFL_CODE            SSL_MAX_FRAG_LEN_NONE
 #define DFL_TRUNC_HMAC          -1
@@ -172,6 +173,7 @@ struct options
     int exchanges;              /* number of data exchanges                 */
     int min_version;            /* minimum protocol version accepted        */
     int max_version;            /* maximum protocol version accepted        */
+    int arc4;                   /* flag for arc4 suites support             */
     int auth_mode;              /* verify mode for connection               */
     unsigned char mfl_code;     /* code for maximum fragment length         */
     int trunc_hmac;             /* accept truncated hmac?                   */
@@ -367,6 +369,7 @@ static int my_send( void *ctx, const unsigned char *buf, size_t len )
     "\n"                                                    \
     "    min_version=%%s      default: \"ssl3\"\n"          \
     "    max_version=%%s      default: \"tls1_2\"\n"        \
+    "    arc4=%%d             default: 0 (disabled)\n"      \
     "    force_version=%%s    default: \"\" (none)\n"       \
     "                        options: ssl3, tls1, tls1_1, tls1_2\n"     \
     "\n"                                                                \
@@ -749,6 +752,7 @@ int main( int argc, char *argv[] )
     opt.exchanges           = DFL_EXCHANGES;
     opt.min_version         = DFL_MIN_VERSION;
     opt.max_version         = DFL_MAX_VERSION;
+    opt.arc4                = DFL_ARC4;
     opt.auth_mode           = DFL_AUTH_MODE;
     opt.mfl_code            = DFL_MFL_CODE;
     opt.trunc_hmac          = DFL_TRUNC_HMAC;
@@ -885,6 +889,15 @@ int main( int argc, char *argv[] )
             else
                 goto usage;
         }
+        else if( strcmp( p, "arc4" ) == 0 )
+        {
+            switch( atoi( q ) )
+            {
+                case 0:     opt.arc4 = SSL_ARC4_DISABLED;   break;
+                case 1:     opt.arc4 = SSL_ARC4_ENABLED;    break;
+                default:    goto usage;
+            }
+        }
         else if( strcmp( p, "force_version" ) == 0 )
         {
             if( strcmp( q, "ssl3" ) == 0 )
@@ -1393,6 +1406,8 @@ int main( int argc, char *argv[] )
 
     if( opt.force_ciphersuite[0] != DFL_FORCE_CIPHER )
         ssl_set_ciphersuites( &ssl, opt.force_ciphersuite );
+    else
+        ssl_set_arc4_support( &ssl, opt.arc4 );
 
     if( opt.version_suites != NULL )
     {

tests/compat.sh

@@ -676,7 +676,7 @@ setup_arguments()
             exit 1;
     esac
 
-    P_SERVER_ARGS="server_port=$PORT server_addr=0.0.0.0 force_version=$MODE"
+    P_SERVER_ARGS="server_port=$PORT server_addr=0.0.0.0 force_version=$MODE arc4=1"
     O_SERVER_ARGS="-accept $PORT -www -cipher NULL,ALL -$MODE"
     G_SERVER_ARGS="-p $PORT --http"
     G_SERVER_PRIO="EXPORT:+NULL:+MD5:+PSK:+DHE-PSK:+ECDHE-PSK:+RSA-PSK:-VERS-TLS-ALL:$G_PRIO_MODE"

tests/ssl-opt.sh

@@ -408,6 +408,26 @@ run_test    "Default" \
             -S "error" \
             -C "error"
 
+# Tests for rc4 option
+
+run_test    "RC4: server disabled, client enabled" \
+            "$P_SRV" \
+            "$P_CLI force_ciphersuite=TLS-RSA-WITH-RC4-128-SHA" \
+            1 \
+            -s "SSL - The server has no ciphersuites in common"
+
+run_test    "RC4: server enabled, client disabled" \
+            "$P_SRV force_ciphersuite=TLS-RSA-WITH-RC4-128-SHA" \
+            "$P_CLI" \
+            1 \
+            -s "SSL - The server has no ciphersuites in common"
+
+run_test    "RC4: both enabled" \
+            "$P_SRV arc4=1" \
+            "$P_CLI force_ciphersuite=TLS-RSA-WITH-RC4-128-SHA" \
+            0 \
+            -S "SSL - The server has no ciphersuites in common"
+
 # Test for SSLv2 ClientHello
 
 requires_openssl_with_sslv2
@@ -1416,7 +1436,7 @@ run_test    "Authentication: client no cert, openssl server optional" \
 
 run_test    "Authentication: client no cert, ssl3" \
             "$P_SRV debug_level=3 auth_mode=optional force_version=ssl3" \
-            "$P_CLI debug_level=3 crt_file=none key_file=none" \
+            "$P_CLI debug_level=3 crt_file=none key_file=none min_version=ssl3" \
             0 \
             -S "skip write certificate request" \
             -C "skip parse certificate request" \
@@ -2098,14 +2118,14 @@ run_test    "PSK callback: wrong key" \
 # Tests for ciphersuites per version
 
 run_test    "Per-version suites: SSL3" \
-            "$P_SRV version_suites=TLS-RSA-WITH-3DES-EDE-CBC-SHA,TLS-RSA-WITH-RC4-128-SHA,TLS-RSA-WITH-AES-128-CBC-SHA,TLS-RSA-WITH-AES-128-GCM-SHA256" \
+            "$P_SRV min_version=ssl3 version_suites=TLS-RSA-WITH-3DES-EDE-CBC-SHA,TLS-RSA-WITH-RC4-128-SHA,TLS-RSA-WITH-AES-128-CBC-SHA,TLS-RSA-WITH-AES-128-GCM-SHA256" \
             "$P_CLI force_version=ssl3" \
             0 \
             -c "Ciphersuite is TLS-RSA-WITH-3DES-EDE-CBC-SHA"
 
 run_test    "Per-version suites: TLS 1.0" \
-            "$P_SRV version_suites=TLS-RSA-WITH-3DES-EDE-CBC-SHA,TLS-RSA-WITH-RC4-128-SHA,TLS-RSA-WITH-AES-128-CBC-SHA,TLS-RSA-WITH-AES-128-GCM-SHA256" \
+            "$P_SRV arc4=1 version_suites=TLS-RSA-WITH-3DES-EDE-CBC-SHA,TLS-RSA-WITH-RC4-128-SHA,TLS-RSA-WITH-AES-128-CBC-SHA,TLS-RSA-WITH-AES-128-GCM-SHA256" \
-            "$P_CLI force_version=tls1" \
+            "$P_CLI force_version=tls1 arc4=1" \
             0 \
             -c "Ciphersuite is TLS-RSA-WITH-RC4-128-SHA"
 
@@ -2138,14 +2158,14 @@ run_test    "ssl_get_bytes_avail: extra data" \
 # Tests for small packets
 
 run_test    "Small packet SSLv3 BlockCipher" \
-            "$P_SRV" \
+            "$P_SRV min_version=ssl3" \
             "$P_CLI request_size=1 force_version=ssl3 \
              force_ciphersuite=TLS-RSA-WITH-AES-256-CBC-SHA" \
             0 \
             -s "Read from client: 1 bytes read"
 
 run_test    "Small packet SSLv3 StreamCipher" \
-            "$P_SRV" \
+            "$P_SRV min_version=ssl3 arc4=1" \
             "$P_CLI request_size=1 force_version=ssl3 \
              force_ciphersuite=TLS-RSA-WITH-RC4-128-SHA" \
             0 \
@@ -2174,7 +2194,7 @@ run_test    "Small packet TLS 1.0 BlockCipher truncated MAC" \
             -s "Read from client: 1 bytes read"
 
 run_test    "Small packet TLS 1.0 StreamCipher truncated MAC" \
-            "$P_SRV" \
+            "$P_SRV arc4=1" \
             "$P_CLI request_size=1 force_version=tls1 \
              force_ciphersuite=TLS-RSA-WITH-RC4-128-SHA \
              trunc_hmac=1" \
@@ -2196,7 +2216,7 @@ run_test    "Small packet TLS 1.1 BlockCipher without EtM" \
             -s "Read from client: 1 bytes read"
 
 run_test    "Small packet TLS 1.1 StreamCipher" \
-            "$P_SRV" \
+            "$P_SRV arc4=1" \
             "$P_CLI request_size=1 force_version=tls1_1 \
              force_ciphersuite=TLS-RSA-WITH-RC4-128-SHA" \
             0 \
@@ -2211,7 +2231,7 @@ run_test    "Small packet TLS 1.1 BlockCipher truncated MAC" \
             -s "Read from client: 1 bytes read"
 
 run_test    "Small packet TLS 1.1 StreamCipher truncated MAC" \
-            "$P_SRV" \
+            "$P_SRV arc4=1" \
             "$P_CLI request_size=1 force_version=tls1_1 \
              force_ciphersuite=TLS-RSA-WITH-RC4-128-SHA \
              trunc_hmac=1" \
@@ -2248,14 +2268,14 @@ run_test    "Small packet TLS 1.2 BlockCipher truncated MAC" \
             -s "Read from client: 1 bytes read"
 
 run_test    "Small packet TLS 1.2 StreamCipher" \
-            "$P_SRV" \
+            "$P_SRV arc4=1" \
             "$P_CLI request_size=1 force_version=tls1_2 \
              force_ciphersuite=TLS-RSA-WITH-RC4-128-SHA" \
             0 \
             -s "Read from client: 1 bytes read"
 
 run_test    "Small packet TLS 1.2 StreamCipher truncated MAC" \
-            "$P_SRV" \
+            "$P_SRV arc4=1" \
             "$P_CLI request_size=1 force_version=tls1_2 \
              force_ciphersuite=TLS-RSA-WITH-RC4-128-SHA \
              trunc_hmac=1" \
@@ -2279,14 +2299,14 @@ run_test    "Small packet TLS 1.2 AEAD shorter tag" \
 # Test for large packets
 
 run_test    "Large packet SSLv3 BlockCipher" \
-            "$P_SRV" \
+            "$P_SRV min_version=ssl3" \
             "$P_CLI request_size=16384 force_version=ssl3 recsplit=0 \
              force_ciphersuite=TLS-RSA-WITH-AES-256-CBC-SHA" \
             0 \
             -s "Read from client: 16384 bytes read"
 
 run_test    "Large packet SSLv3 StreamCipher" \
-            "$P_SRV" \
+            "$P_SRV min_version=ssl3 arc4=1" \
             "$P_CLI request_size=16384 force_version=ssl3 \
              force_ciphersuite=TLS-RSA-WITH-RC4-128-SHA" \
             0 \
@@ -2308,7 +2328,7 @@ run_test    "Large packet TLS 1.0 BlockCipher truncated MAC" \
             -s "Read from client: 16384 bytes read"
 
 run_test    "Large packet TLS 1.0 StreamCipher truncated MAC" \
-            "$P_SRV" \
+            "$P_SRV arc4=1" \
             "$P_CLI request_size=16384 force_version=tls1 \
              force_ciphersuite=TLS-RSA-WITH-RC4-128-SHA \
              trunc_hmac=1" \
@@ -2323,7 +2343,7 @@ run_test    "Large packet TLS 1.1 BlockCipher" \
             -s "Read from client: 16384 bytes read"
 
 run_test    "Large packet TLS 1.1 StreamCipher" \
-            "$P_SRV" \
+            "$P_SRV arc4=1" \
             "$P_CLI request_size=16384 force_version=tls1_1 \
              force_ciphersuite=TLS-RSA-WITH-RC4-128-SHA" \
             0 \
@@ -2338,7 +2358,7 @@ run_test    "Large packet TLS 1.1 BlockCipher truncated MAC" \
             -s "Read from client: 16384 bytes read"
 
 run_test    "Large packet TLS 1.1 StreamCipher truncated MAC" \
-            "$P_SRV" \
+            "$P_SRV arc4=1" \
             "$P_CLI request_size=16384 force_version=tls1_1 \
              force_ciphersuite=TLS-RSA-WITH-RC4-128-SHA \
              trunc_hmac=1" \
@@ -2368,14 +2388,14 @@ run_test    "Large packet TLS 1.2 BlockCipher truncated MAC" \
             -s "Read from client: 16384 bytes read"
 
 run_test    "Large packet TLS 1.2 StreamCipher" \
-            "$P_SRV" \
+            "$P_SRV arc4=1" \
             "$P_CLI request_size=16384 force_version=tls1_2 \
              force_ciphersuite=TLS-RSA-WITH-RC4-128-SHA" \
             0 \
             -s "Read from client: 16384 bytes read"
 
 run_test    "Large packet TLS 1.2 StreamCipher truncated MAC" \
-            "$P_SRV" \
+            "$P_SRV arc4=1" \
             "$P_CLI request_size=16384 force_version=tls1_2 \
              force_ciphersuite=TLS-RSA-WITH-RC4-128-SHA \
              trunc_hmac=1" \