From 52628ee3f51f011b463aaedb1a28aa0524b43cb3 Mon Sep 17 00:00:00 2001 From: miod <> Date: Sun, 13 Apr 2014 15:16:40 +0000 Subject: Import OpenSSL 1.0.1g --- src/lib/libssl/d1_both.c | 39 ++++-- src/lib/libssl/d1_clnt.c | 36 +++-- src/lib/libssl/d1_enc.c | 59 +++------ src/lib/libssl/d1_lib.c | 1 + src/lib/libssl/d1_pkt.c | 98 ++++++++------ src/lib/libssl/d1_srtp.c | 5 +- src/lib/libssl/d1_srvr.c | 29 ++-- src/lib/libssl/dtls1.h | 8 +- src/lib/libssl/s23_clnt.c | 29 +++- src/lib/libssl/s3_both.c | 22 +++- src/lib/libssl/s3_clnt.c | 11 +- src/lib/libssl/s3_lib.c | 36 +++-- src/lib/libssl/s3_pkt.c | 111 +++++++++------- src/lib/libssl/s3_srvr.c | 39 +++--- src/lib/libssl/ssl.h | 21 ++- src/lib/libssl/ssl3.h | 15 +++ src/lib/libssl/ssl_algs.c | 1 + src/lib/libssl/ssl_cert.c | 4 +- src/lib/libssl/ssl_ciph.c | 5 +- src/lib/libssl/ssl_err.c | 1 + src/lib/libssl/ssl_lib.c | 26 +++- src/lib/libssl/ssl_locl.h | 47 ++++++- src/lib/libssl/ssl_rsa.c | 14 +- src/lib/libssl/t1_enc.c | 190 +++++++++++++-------------- src/lib/libssl/t1_lib.c | 283 ++++++++++++++++++++++++++++++---------- src/lib/libssl/test/cms-test.pl | 4 +- src/lib/libssl/test/testssl | 17 +++ src/lib/libssl/tls1.h | 6 + 28 files changed, 762 insertions(+), 395 deletions(-) (limited to 'src/lib/libssl') diff --git a/src/lib/libssl/d1_both.c b/src/lib/libssl/d1_both.c index de8bab873f..2e8cf681ed 100644 --- a/src/lib/libssl/d1_both.c +++ b/src/lib/libssl/d1_both.c @@ -214,6 +214,12 @@ dtls1_hm_fragment_new(unsigned long frag_len, int reassembly) static void dtls1_hm_fragment_free(hm_fragment *frag) { + + if (frag->msg_header.is_ccs) + { + EVP_CIPHER_CTX_free(frag->msg_header.saved_retransmit_state.enc_write_ctx); + EVP_MD_CTX_destroy(frag->msg_header.saved_retransmit_state.write_hash); + } if (frag->fragment) OPENSSL_free(frag->fragment); if (frag->reassembly) OPENSSL_free(frag->reassembly); OPENSSL_free(frag); @@ -313,9 +319,10 @@ int dtls1_do_write(SSL *s, int type) s->init_off -= DTLS1_HM_HEADER_LENGTH; s->init_num += DTLS1_HM_HEADER_LENGTH; - /* write atleast DTLS1_HM_HEADER_LENGTH bytes */ - if ( len <= DTLS1_HM_HEADER_LENGTH) - len += DTLS1_HM_HEADER_LENGTH; + if ( s->init_num > curr_mtu) + len = curr_mtu; + else + len = s->init_num; } dtls1_fix_message_header(s, frag_off, @@ -1452,26 +1459,36 @@ dtls1_process_heartbeat(SSL *s) unsigned int payload; unsigned int padding = 16; /* Use minimum padding */ - /* Read type and payload length first */ - hbtype = *p++; - n2s(p, payload); - pl = p; - if (s->msg_callback) s->msg_callback(0, s->version, TLS1_RT_HEARTBEAT, &s->s3->rrec.data[0], s->s3->rrec.length, s, s->msg_callback_arg); + /* Read type and payload length first */ + if (1 + 2 + 16 > s->s3->rrec.length) + return 0; /* silently discard */ + hbtype = *p++; + n2s(p, payload); + if (1 + 2 + payload + 16 > s->s3->rrec.length) + return 0; /* silently discard per RFC 6520 sec. 4 */ + pl = p; + if (hbtype == TLS1_HB_REQUEST) { unsigned char *buffer, *bp; + unsigned int write_length = 1 /* heartbeat type */ + + 2 /* heartbeat length */ + + payload + padding; int r; + if (write_length > SSL3_RT_MAX_PLAIN_LENGTH) + return 0; + /* Allocate memory for the response, size is 1 byte * message type, plus 2 bytes payload length, plus * payload, plus padding */ - buffer = OPENSSL_malloc(1 + 2 + payload + padding); + buffer = OPENSSL_malloc(write_length); bp = buffer; /* Enter response type, length and copy payload */ @@ -1482,11 +1499,11 @@ dtls1_process_heartbeat(SSL *s) /* Random padding */ RAND_pseudo_bytes(bp, padding); - r = dtls1_write_bytes(s, TLS1_RT_HEARTBEAT, buffer, 3 + payload + padding); + r = dtls1_write_bytes(s, TLS1_RT_HEARTBEAT, buffer, write_length); if (r >= 0 && s->msg_callback) s->msg_callback(1, s->version, TLS1_RT_HEARTBEAT, - buffer, 3 + payload + padding, + buffer, write_length, s, s->msg_callback_arg); OPENSSL_free(buffer); diff --git a/src/lib/libssl/d1_clnt.c b/src/lib/libssl/d1_clnt.c index a6ed09c51d..48e5e06bde 100644 --- a/src/lib/libssl/d1_clnt.c +++ b/src/lib/libssl/d1_clnt.c @@ -538,13 +538,6 @@ int dtls1_connect(SSL *s) SSL3_ST_CW_CHANGE_A,SSL3_ST_CW_CHANGE_B); if (ret <= 0) goto end; -#ifndef OPENSSL_NO_SCTP - /* Change to new shared key of SCTP-Auth, - * will be ignored if no SCTP used. - */ - BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_NEXT_AUTH_KEY, 0, NULL); -#endif - s->state=SSL3_ST_CW_FINISHED_A; s->init_num=0; @@ -571,6 +564,16 @@ int dtls1_connect(SSL *s) goto end; } +#ifndef OPENSSL_NO_SCTP + if (s->hit) + { + /* Change to new shared key of SCTP-Auth, + * will be ignored if no SCTP used. + */ + BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_NEXT_AUTH_KEY, 0, NULL); + } +#endif + dtls1_reset_seq_numbers(s, SSL3_CC_WRITE); break; @@ -613,6 +616,13 @@ int dtls1_connect(SSL *s) } else { +#ifndef OPENSSL_NO_SCTP + /* Change to new shared key of SCTP-Auth, + * will be ignored if no SCTP used. + */ + BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_NEXT_AUTH_KEY, 0, NULL); +#endif + #ifndef OPENSSL_NO_TLSEXT /* Allow NewSessionTicket if ticket expected */ if (s->tlsext_ticket_expected) @@ -773,7 +783,7 @@ int dtls1_client_hello(SSL *s) unsigned char *buf; unsigned char *p,*d; unsigned int i,j; - unsigned long Time,l; + unsigned long l; SSL_COMP *comp; buf=(unsigned char *)s->init_buf->data; @@ -798,13 +808,11 @@ int dtls1_client_hello(SSL *s) /* if client_random is initialized, reuse it, we are * required to use same upon reply to HelloVerify */ - for (i=0;p[i]=='\0' && is3->client_random);i++) ; + for (i=0;p[i]=='\0' && is3->client_random);i++) + ; if (i==sizeof(s->s3->client_random)) - { - Time=(unsigned long)time(NULL); /* Time */ - l2n(Time,p); - RAND_pseudo_bytes(p,sizeof(s->s3->client_random)-4); - } + ssl_fill_hello_random(s, 0, p, + sizeof(s->s3->client_random)); /* Do the message type and length last */ d=p= &(buf[DTLS1_HM_HEADER_LENGTH]); diff --git a/src/lib/libssl/d1_enc.c b/src/lib/libssl/d1_enc.c index 07a5e97ce5..712c4647f2 100644 --- a/src/lib/libssl/d1_enc.c +++ b/src/lib/libssl/d1_enc.c @@ -126,20 +126,28 @@ #include #endif +/* dtls1_enc encrypts/decrypts the record in |s->wrec| / |s->rrec|, respectively. + * + * Returns: + * 0: (in non-constant time) if the record is publically invalid (i.e. too + * short etc). + * 1: if the record's padding is valid / the encryption was successful. + * -1: if the record's padding/AEAD-authenticator is invalid or, if sending, + * an internal error occured. */ int dtls1_enc(SSL *s, int send) { SSL3_RECORD *rec; EVP_CIPHER_CTX *ds; unsigned long l; - int bs,i,ii,j,k,n=0; + int bs,i,j,k,mac_size=0; const EVP_CIPHER *enc; if (send) { if (EVP_MD_CTX_md(s->write_hash)) { - n=EVP_MD_CTX_size(s->write_hash); - if (n < 0) + mac_size=EVP_MD_CTX_size(s->write_hash); + if (mac_size < 0) return -1; } ds=s->enc_write_ctx; @@ -164,9 +172,8 @@ int dtls1_enc(SSL *s, int send) { if (EVP_MD_CTX_md(s->read_hash)) { - n=EVP_MD_CTX_size(s->read_hash); - if (n < 0) - return -1; + mac_size=EVP_MD_CTX_size(s->read_hash); + OPENSSL_assert(mac_size >= 0); } ds=s->enc_read_ctx; rec= &(s->s3->rrec); @@ -231,7 +238,7 @@ int dtls1_enc(SSL *s, int send) if (!send) { if (l == 0 || l%bs != 0) - return -1; + return 0; } EVP_Cipher(ds,rec->data,rec->input,l); @@ -246,43 +253,7 @@ int dtls1_enc(SSL *s, int send) #endif /* KSSL_DEBUG */ if ((bs != 1) && !send) - { - ii=i=rec->data[l-1]; /* padding_length */ - i++; - if (s->options&SSL_OP_TLS_BLOCK_PADDING_BUG) - { - /* First packet is even in size, so check */ - if ((memcmp(s->s3->read_sequence, - "\0\0\0\0\0\0\0\0",8) == 0) && !(ii & 1)) - s->s3->flags|=TLS1_FLAGS_TLS_PADDING_BUG; - if (s->s3->flags & TLS1_FLAGS_TLS_PADDING_BUG) - i--; - } - /* TLS 1.0 does not bound the number of padding bytes by the block size. - * All of them must have value 'padding_length'. */ - if (i + bs > (int)rec->length) - { - /* Incorrect padding. SSLerr() and ssl3_alert are done - * by caller: we don't want to reveal whether this is - * a decryption error or a MAC verification failure - * (see http://www.openssl.org/~bodo/tls-cbc.txt) - */ - return -1; - } - for (j=(int)(l-i); j<(int)l; j++) - { - if (rec->data[j] != ii) - { - /* Incorrect padding */ - return -1; - } - } - rec->length-=i; - - rec->data += bs; /* skip the implicit IV */ - rec->input += bs; - rec->length -= bs; - } + return tls1_cbc_remove_padding(s, rec, bs, mac_size); } return(1); } diff --git a/src/lib/libssl/d1_lib.c b/src/lib/libssl/d1_lib.c index f61f718183..106939f241 100644 --- a/src/lib/libssl/d1_lib.c +++ b/src/lib/libssl/d1_lib.c @@ -196,6 +196,7 @@ void dtls1_free(SSL *s) pqueue_free(s->d1->buffered_app_data.q); OPENSSL_free(s->d1); + s->d1 = NULL; } void dtls1_clear(SSL *s) diff --git a/src/lib/libssl/d1_pkt.c b/src/lib/libssl/d1_pkt.c index 987af60835..8186462d4a 100644 --- a/src/lib/libssl/d1_pkt.c +++ b/src/lib/libssl/d1_pkt.c @@ -376,15 +376,11 @@ static int dtls1_process_record(SSL *s) { int i,al; - int clear=0; int enc_err; SSL_SESSION *sess; SSL3_RECORD *rr; - unsigned int mac_size; + unsigned int mac_size, orig_len; unsigned char md[EVP_MAX_MD_SIZE]; - int decryption_failed_or_bad_record_mac = 0; - unsigned char *mac = NULL; - rr= &(s->s3->rrec); sess = s->session; @@ -416,12 +412,16 @@ dtls1_process_record(SSL *s) rr->data=rr->input; enc_err = s->method->ssl3_enc->enc(s,0); - if (enc_err <= 0) + /* enc_err is: + * 0: (in non-constant time) if the record is publically invalid. + * 1: if the padding is valid + * -1: if the padding is invalid */ + if (enc_err == 0) { - /* To minimize information leaked via timing, we will always - * perform all computations before discarding the message. - */ - decryption_failed_or_bad_record_mac = 1; + /* For DTLS we simply ignore bad packets. */ + rr->length = 0; + s->packet_length = 0; + goto err; } #ifdef TLS_DEBUG @@ -431,45 +431,62 @@ printf("\n"); #endif /* r->length is now the compressed data plus mac */ - if ( (sess == NULL) || - (s->enc_read_ctx == NULL) || - (s->read_hash == NULL)) - clear=1; - - if (!clear) + if ((sess != NULL) && + (s->enc_read_ctx != NULL) && + (EVP_MD_CTX_md(s->read_hash) != NULL)) { - /* !clear => s->read_hash != NULL => mac_size != -1 */ - int t; - t=EVP_MD_CTX_size(s->read_hash); - OPENSSL_assert(t >= 0); - mac_size=t; - - if (rr->length > SSL3_RT_MAX_COMPRESSED_LENGTH+mac_size) + /* s->read_hash != NULL => mac_size != -1 */ + unsigned char *mac = NULL; + unsigned char mac_tmp[EVP_MAX_MD_SIZE]; + mac_size=EVP_MD_CTX_size(s->read_hash); + OPENSSL_assert(mac_size <= EVP_MAX_MD_SIZE); + + /* kludge: *_cbc_remove_padding passes padding length in rr->type */ + orig_len = rr->length+((unsigned int)rr->type>>8); + + /* orig_len is the length of the record before any padding was + * removed. This is public information, as is the MAC in use, + * therefore we can safely process the record in a different + * amount of time if it's too short to possibly contain a MAC. + */ + if (orig_len < mac_size || + /* CBC records must have a padding length byte too. */ + (EVP_CIPHER_CTX_mode(s->enc_read_ctx) == EVP_CIPH_CBC_MODE && + orig_len < mac_size+1)) { -#if 0 /* OK only for stream ciphers (then rr->length is visible from ciphertext anyway) */ - al=SSL_AD_RECORD_OVERFLOW; - SSLerr(SSL_F_DTLS1_PROCESS_RECORD,SSL_R_PRE_MAC_LENGTH_TOO_LONG); + al=SSL_AD_DECODE_ERROR; + SSLerr(SSL_F_DTLS1_PROCESS_RECORD,SSL_R_LENGTH_TOO_SHORT); goto f_err; -#else - decryption_failed_or_bad_record_mac = 1; -#endif } - /* check the MAC for rr->input (it's in mac_size bytes at the tail) */ - if (rr->length >= mac_size) + + if (EVP_CIPHER_CTX_mode(s->enc_read_ctx) == EVP_CIPH_CBC_MODE) { + /* We update the length so that the TLS header bytes + * can be constructed correctly but we need to extract + * the MAC in constant time from within the record, + * without leaking the contents of the padding bytes. + * */ + mac = mac_tmp; + ssl3_cbc_copy_mac(mac_tmp, rr, mac_size, orig_len); rr->length -= mac_size; - mac = &rr->data[rr->length]; } else - rr->length = 0; - i=s->method->ssl3_enc->mac(s,md,0); - if (i < 0 || mac == NULL || memcmp(md, mac, mac_size) != 0) { - decryption_failed_or_bad_record_mac = 1; + /* In this case there's no padding, so |orig_len| + * equals |rec->length| and we checked that there's + * enough bytes for |mac_size| above. */ + rr->length -= mac_size; + mac = &rr->data[rr->length]; } + + i=s->method->ssl3_enc->mac(s,md,0 /* not send */); + if (i < 0 || mac == NULL || CRYPTO_memcmp(md, mac, (size_t)mac_size) != 0) + enc_err = -1; + if (rr->length > SSL3_RT_MAX_COMPRESSED_LENGTH+mac_size) + enc_err = -1; } - if (decryption_failed_or_bad_record_mac) + if (enc_err < 0) { /* decryption failed, silently discard message */ rr->length = 0; @@ -830,6 +847,12 @@ start: } } + if (s->d1->listen && rr->type != SSL3_RT_HANDSHAKE) + { + rr->length = 0; + goto start; + } + /* we now have a packet which can be read and processed */ if (s->s3->change_cipher_spec /* set when we receive ChangeCipherSpec, @@ -1034,6 +1057,7 @@ start: !(s->s3->flags & SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS) && !s->s3->renegotiate) { + s->d1->handshake_read_seq++; s->new_session = 1; ssl3_renegotiate(s); if (ssl3_renegotiate_check(s)) diff --git a/src/lib/libssl/d1_srtp.c b/src/lib/libssl/d1_srtp.c index 928935bd8b..ab9c41922c 100644 --- a/src/lib/libssl/d1_srtp.c +++ b/src/lib/libssl/d1_srtp.c @@ -115,11 +115,12 @@ Copyright (C) 2011, RTFM, Inc. */ -#ifndef OPENSSL_NO_SRTP - #include #include #include "ssl_locl.h" + +#ifndef OPENSSL_NO_SRTP + #include "srtp.h" diff --git a/src/lib/libssl/d1_srvr.c b/src/lib/libssl/d1_srvr.c index 29421da9aa..9975e20873 100644 --- a/src/lib/libssl/d1_srvr.c +++ b/src/lib/libssl/d1_srvr.c @@ -276,10 +276,11 @@ int dtls1_accept(SSL *s) case SSL3_ST_SW_HELLO_REQ_B: s->shutdown=0; + dtls1_clear_record_buffer(s); dtls1_start_timer(s); ret=dtls1_send_hello_request(s); if (ret <= 0) goto end; - s->s3->tmp.next_state=SSL3_ST_SW_HELLO_REQ_C; + s->s3->tmp.next_state=SSL3_ST_SR_CLNT_HELLO_A; s->state=SSL3_ST_SW_FLUSH; s->init_num=0; @@ -721,10 +722,13 @@ int dtls1_accept(SSL *s) if (ret <= 0) goto end; #ifndef OPENSSL_NO_SCTP - /* Change to new shared key of SCTP-Auth, - * will be ignored if no SCTP used. - */ - BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_NEXT_AUTH_KEY, 0, NULL); + if (!s->hit) + { + /* Change to new shared key of SCTP-Auth, + * will be ignored if no SCTP used. + */ + BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_NEXT_AUTH_KEY, 0, NULL); + } #endif s->state=SSL3_ST_SW_FINISHED_A; @@ -749,7 +753,16 @@ int dtls1_accept(SSL *s) if (ret <= 0) goto end; s->state=SSL3_ST_SW_FLUSH; if (s->hit) + { s->s3->tmp.next_state=SSL3_ST_SR_FINISHED_A; + +#ifndef OPENSSL_NO_SCTP + /* Change to new shared key of SCTP-Auth, + * will be ignored if no SCTP used. + */ + BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_NEXT_AUTH_KEY, 0, NULL); +#endif + } else { s->s3->tmp.next_state=SSL_ST_OK; @@ -912,15 +925,13 @@ int dtls1_send_server_hello(SSL *s) unsigned char *p,*d; int i; unsigned int sl; - unsigned long l,Time; + unsigned long l; if (s->state == SSL3_ST_SW_SRVR_HELLO_A) { buf=(unsigned char *)s->init_buf->data; p=s->s3->server_random; - Time=(unsigned long)time(NULL); /* Time */ - l2n(Time,p); - RAND_pseudo_bytes(p,SSL3_RANDOM_SIZE-4); + ssl_fill_hello_random(s, 1, p, SSL3_RANDOM_SIZE); /* Do the message type and length last */ d=p= &(buf[DTLS1_HM_HEADER_LENGTH]); diff --git a/src/lib/libssl/dtls1.h b/src/lib/libssl/dtls1.h index 5008bf6081..e65d501191 100644 --- a/src/lib/libssl/dtls1.h +++ b/src/lib/libssl/dtls1.h @@ -57,8 +57,8 @@ * */ -#ifndef HEADER_DTLS1_H -#define HEADER_DTLS1_H +#ifndef HEADER_DTLS1_H +#define HEADER_DTLS1_H #include #include @@ -72,8 +72,12 @@ #elif defined(OPENSSL_SYS_NETWARE) && !defined(_WINSOCK2API_) #include #else +#if defined(OPENSSL_SYS_VXWORKS) +#include +#else #include #endif +#endif #ifdef __cplusplus extern "C" { diff --git a/src/lib/libssl/s23_clnt.c b/src/lib/libssl/s23_clnt.c index 47673e740a..2b93c639dd 100644 --- a/src/lib/libssl/s23_clnt.c +++ b/src/lib/libssl/s23_clnt.c @@ -269,12 +269,35 @@ static int ssl23_no_ssl2_ciphers(SSL *s) return 1; } +/* Fill a ClientRandom or ServerRandom field of length len. Returns <= 0 + * on failure, 1 on success. */ +int ssl_fill_hello_random(SSL *s, int server, unsigned char *result, int len) + { + int send_time = 0; + + if (len < 4) + return 0; + if (server) + send_time = (s->mode & SSL_MODE_SEND_SERVERHELLO_TIME) != 0; + else + send_time = (s->mode & SSL_MODE_SEND_CLIENTHELLO_TIME) != 0; + if (send_time) + { + unsigned long Time = (unsigned long)time(NULL); + unsigned char *p = result; + l2n(Time, p); + return RAND_pseudo_bytes(p, len-4); + } + else + return RAND_pseudo_bytes(result, len); + } + static int ssl23_client_hello(SSL *s) { unsigned char *buf; unsigned char *p,*d; int i,ch_len; - unsigned long Time,l; + unsigned long l; int ssl2_compat; int version = 0, version_major, version_minor; #ifndef OPENSSL_NO_COMP @@ -355,9 +378,7 @@ static int ssl23_client_hello(SSL *s) #endif p=s->s3->client_random; - Time=(unsigned long)time(NULL); /* Time */ - l2n(Time,p); - if (RAND_pseudo_bytes(p,SSL3_RANDOM_SIZE-4) <= 0) + if (ssl_fill_hello_random(s, 0, p, SSL3_RANDOM_SIZE) <= 0) return -1; if (version == TLS1_2_VERSION) diff --git a/src/lib/libssl/s3_both.c b/src/lib/libssl/s3_both.c index b63460a56d..53b9390fdd 100644 --- a/src/lib/libssl/s3_both.c +++ b/src/lib/libssl/s3_both.c @@ -161,6 +161,8 @@ int ssl3_send_finished(SSL *s, int a, int b, const char *sender, int slen) i=s->method->ssl3_enc->final_finish_mac(s, sender,slen,s->s3->tmp.finish_md); + if (i == 0) + return 0; s->s3->tmp.finish_md_len = i; memcpy(p, s->s3->tmp.finish_md, i); p+=i; @@ -204,10 +206,15 @@ int ssl3_send_finished(SSL *s, int a, int b, const char *sender, int slen) #ifndef OPENSSL_NO_NEXTPROTONEG /* ssl3_take_mac calculates the Finished MAC for the handshakes messages seen to far. */ -static void ssl3_take_mac(SSL *s) { +static void ssl3_take_mac(SSL *s) + { const char *sender; int slen; - + /* If no new cipher setup return immediately: other functions will + * set the appropriate error. + */ + if (s->s3->tmp.new_cipher == NULL) + return; if (s->state & SSL_ST_CONNECT) { sender=s->method->ssl3_enc->server_finished_label; @@ -221,7 +228,7 @@ static void ssl3_take_mac(SSL *s) { s->s3->tmp.peer_finish_md_len = s->method->ssl3_enc->final_finish_mac(s, sender,slen,s->s3->tmp.peer_finish_md); -} + } #endif int ssl3_get_finished(SSL *s, int a, int b) @@ -231,8 +238,9 @@ int ssl3_get_finished(SSL *s, int a, int b) unsigned char *p; #ifdef OPENSSL_NO_NEXTPROTONEG - /* the mac has already been generated when we received the change - * cipher spec message and is in s->s3->tmp.peer_finish_md. */ + /* the mac has already been generated when we received the + * change cipher spec message and is in s->s3->tmp.peer_finish_md. + */ #endif n=s->method->ssl_get_message(s, @@ -263,7 +271,7 @@ int ssl3_get_finished(SSL *s, int a, int b) goto f_err; } - if (memcmp(p, s->s3->tmp.peer_finish_md, i) != 0) + if (CRYPTO_memcmp(p, s->s3->tmp.peer_finish_md, i) != 0) { al=SSL_AD_DECRYPT_ERROR; SSLerr(SSL_F_SSL3_GET_FINISHED,SSL_R_DIGEST_CHECK_FAILED); @@ -537,12 +545,14 @@ long ssl3_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok) s->init_num += i; n -= i; } + #ifndef OPENSSL_NO_NEXTPROTONEG /* If receiving Finished, record MAC of prior handshake messages for * Finished verification. */ if (*s->init_buf->data == SSL3_MT_FINISHED) ssl3_take_mac(s); #endif + /* Feed this message into MAC computation. */ ssl3_finish_mac(s, (unsigned char *)s->init_buf->data, s->init_num + 4); if (s->msg_callback) diff --git a/src/lib/libssl/s3_clnt.c b/src/lib/libssl/s3_clnt.c index b80d052e1f..a6b3c01afa 100644 --- a/src/lib/libssl/s3_clnt.c +++ b/src/lib/libssl/s3_clnt.c @@ -459,7 +459,6 @@ int ssl3_connect(SSL *s) SSL3_ST_CW_CHANGE_A,SSL3_ST_CW_CHANGE_B); if (ret <= 0) goto end; - #if defined(OPENSSL_NO_TLSEXT) || defined(OPENSSL_NO_NEXTPROTONEG) s->state=SSL3_ST_CW_FINISHED_A; #else @@ -656,7 +655,7 @@ int ssl3_client_hello(SSL *s) unsigned char *buf; unsigned char *p,*d; int i; - unsigned long Time,l; + unsigned long l; #ifndef OPENSSL_NO_COMP int j; SSL_COMP *comp; @@ -681,9 +680,8 @@ int ssl3_client_hello(SSL *s) /* else use the pre-loaded session */ p=s->s3->client_random; - Time=(unsigned long)time(NULL); /* Time */ - l2n(Time,p); - if (RAND_pseudo_bytes(p,SSL3_RANDOM_SIZE-4) <= 0) + + if (ssl_fill_hello_random(s, 0, p, SSL3_RANDOM_SIZE) <= 0) goto err; /* Do the message type and length last */ @@ -987,7 +985,10 @@ int ssl3_get_server_hello(SSL *s) * client authentication. */ if (TLS1_get_version(s) < TLS1_2_VERSION && !ssl3_digest_cached_records(s)) + { + al = SSL_AD_INTERNAL_ERROR; goto f_err; + } /* lets get the compression algorithm */ /* COMPRESSION */ #ifdef OPENSSL_NO_COMP diff --git a/src/lib/libssl/s3_lib.c b/src/lib/libssl/s3_lib.c index fb60cde8ee..c4ef2738d7 100644 --- a/src/lib/libssl/s3_lib.c +++ b/src/lib/libssl/s3_lib.c @@ -1125,7 +1125,7 @@ OPENSSL_GLOBAL SSL_CIPHER ssl3_ciphers[]={ 0, /* not implemented (non-ephemeral DH) */ TLS1_TXT_DH_DSS_WITH_AES_128_SHA256, TLS1_CK_DH_DSS_WITH_AES_128_SHA256, - SSL_kDHr, + SSL_kDHd, SSL_aDH, SSL_AES128, SSL_SHA256, @@ -1407,7 +1407,7 @@ OPENSSL_GLOBAL SSL_CIPHER ssl3_ciphers[]={ 0, /* not implemented (non-ephemeral DH) */ TLS1_TXT_DH_DSS_WITH_AES_256_SHA256, TLS1_CK_DH_DSS_WITH_AES_256_SHA256, - SSL_kDHr, + SSL_kDHd, SSL_aDH, SSL_AES256, SSL_SHA256, @@ -1683,7 +1683,7 @@ OPENSSL_GLOBAL SSL_CIPHER ssl3_ciphers[]={ SSL_3DES, SSL_SHA1, SSL_TLSV1, - SSL_NOT_EXP|SSL_HIGH, + SSL_NOT_EXP|SSL_HIGH|SSL_FIPS, SSL_HANDSHAKE_MAC_DEFAULT|TLS1_PRF, 168, 168, @@ -1699,7 +1699,7 @@ OPENSSL_GLOBAL SSL_CIPHER ssl3_ciphers[]={ SSL_AES128, SSL_SHA1, SSL_TLSV1, - SSL_NOT_EXP|SSL_HIGH, + SSL_NOT_EXP|SSL_HIGH|SSL_FIPS, SSL_HANDSHAKE_MAC_DEFAULT|TLS1_PRF, 128, 128, @@ -1715,7 +1715,7 @@ OPENSSL_GLOBAL SSL_CIPHER ssl3_ciphers[]={ SSL_AES256, SSL_SHA1, SSL_TLSV1, - SSL_NOT_EXP|SSL_HIGH, + SSL_NOT_EXP|SSL_HIGH|SSL_FIPS, SSL_HANDSHAKE_MAC_DEFAULT|TLS1_PRF, 256, 256, @@ -1958,7 +1958,7 @@ OPENSSL_GLOBAL SSL_CIPHER ssl3_ciphers[]={ 0, TLS1_TXT_DH_DSS_WITH_AES_128_GCM_SHA256, TLS1_CK_DH_DSS_WITH_AES_128_GCM_SHA256, - SSL_kDHr, + SSL_kDHd, SSL_aDH, SSL_AES128GCM, SSL_AEAD, @@ -1974,7 +1974,7 @@ OPENSSL_GLOBAL SSL_CIPHER ssl3_ciphers[]={ 0, TLS1_TXT_DH_DSS_WITH_AES_256_GCM_SHA384, TLS1_CK_DH_DSS_WITH_AES_256_GCM_SHA384, - SSL_kDHr, + SSL_kDHd, SSL_aDH, SSL_AES256GCM, SSL_AEAD, @@ -2669,7 +2669,7 @@ OPENSSL_GLOBAL SSL_CIPHER ssl3_ciphers[]={ 1, TLS1_TXT_ECDH_RSA_WITH_AES_128_SHA256, TLS1_CK_ECDH_RSA_WITH_AES_128_SHA256, - SSL_kECDHe, + SSL_kECDHr, SSL_aECDH, SSL_AES128, SSL_SHA256, @@ -2685,7 +2685,7 @@ OPENSSL_GLOBAL SSL_CIPHER ssl3_ciphers[]={ 1, TLS1_TXT_ECDH_RSA_WITH_AES_256_SHA384, TLS1_CK_ECDH_RSA_WITH_AES_256_SHA384, - SSL_kECDHe, + SSL_kECDHr, SSL_aECDH, SSL_AES256, SSL_SHA384, @@ -2799,7 +2799,7 @@ OPENSSL_GLOBAL SSL_CIPHER ssl3_ciphers[]={ 1, TLS1_TXT_ECDH_RSA_WITH_AES_128_GCM_SHA256, TLS1_CK_ECDH_RSA_WITH_AES_128_GCM_SHA256, - SSL_kECDHe, + SSL_kECDHr, SSL_aECDH, SSL_AES128GCM, SSL_AEAD, @@ -2815,7 +2815,7 @@ OPENSSL_GLOBAL SSL_CIPHER ssl3_ciphers[]={ 1, TLS1_TXT_ECDH_RSA_WITH_AES_256_GCM_SHA384, TLS1_CK_ECDH_RSA_WITH_AES_256_GCM_SHA384, - SSL_kECDHe, + SSL_kECDHr, SSL_aECDH, SSL_AES256GCM, SSL_AEAD, @@ -3037,6 +3037,11 @@ void ssl3_clear(SSL *s) s->s3->tmp.ecdh = NULL; } #endif +#ifndef OPENSSL_NO_TLSEXT +#ifndef OPENSSL_NO_EC + s->s3->is_probably_safari = 0; +#endif /* !OPENSSL_NO_EC */ +#endif /* !OPENSSL_NO_TLSEXT */ rp = s->s3->rbuf.buf; wp = s->s3->wbuf.buf; @@ -4016,6 +4021,13 @@ SSL_CIPHER *ssl3_choose_cipher(SSL *s, STACK_OF(SSL_CIPHER) *clnt, ii=sk_SSL_CIPHER_find(allow,c); if (ii >= 0) { +#if !defined(OPENSSL_NO_EC) && !defined(OPENSSL_NO_TLSEXT) + if ((alg_k & SSL_kEECDH) && (alg_a & SSL_aECDSA) && s->s3->is_probably_safari) + { + if (!ret) ret=sk_SSL_CIPHER_value(allow,ii); + continue; + } +#endif ret=sk_SSL_CIPHER_value(allow,ii); break; } @@ -4274,7 +4286,7 @@ need to go to SSL_ST_ACCEPT. long ssl_get_algorithm2(SSL *s) { long alg2 = s->s3->tmp.new_cipher->algorithm2; - if (TLS1_get_version(s) >= TLS1_2_VERSION && + if (s->method->version == TLS1_2_VERSION && alg2 == (SSL_HANDSHAKE_MAC_DEFAULT|TLS1_PRF)) return SSL_HANDSHAKE_MAC_SHA256 | TLS1_PRF_SHA256; return alg2; diff --git a/src/lib/libssl/s3_pkt.c b/src/lib/libssl/s3_pkt.c index adf8c387cc..96ba63262e 100644 --- a/src/lib/libssl/s3_pkt.c +++ b/src/lib/libssl/s3_pkt.c @@ -290,11 +290,8 @@ static int ssl3_get_record(SSL *s) unsigned char *p; unsigned char md[EVP_MAX_MD_SIZE]; short version; - int mac_size; - int clear=0; + unsigned mac_size, orig_len; size_t extra; - int decryption_failed_or_bad_record_mac = 0; - unsigned char *mac = NULL; rr= &(s->s3->rrec); sess=s->session; @@ -338,7 +335,7 @@ fprintf(stderr, "Record type=%d, Length=%d\n", rr->type, rr->length); if (version != s->version) { SSLerr(SSL_F_SSL3_GET_RECORD,SSL_R_WRONG_VERSION_NUMBER); - if ((s->version & 0xFF00) == (version & 0xFF00)) + if ((s->version & 0xFF00) == (version & 0xFF00) && !s->enc_write_ctx && !s->write_hash) /* Send back error using their minor version number :-) */ s->version = (unsigned short)version; al=SSL_AD_PROTOCOL_VERSION; @@ -403,17 +400,15 @@ fprintf(stderr, "Record type=%d, Length=%d\n", rr->type, rr->length); rr->data=rr->input; enc_err = s->method->ssl3_enc->enc(s,0); - if (enc_err <= 0) + /* enc_err is: + * 0: (in non-constant time) if the record is publically invalid. + * 1: if the padding is valid + * -1: if the padding is invalid */ + if (enc_err == 0) { - if (enc_err == 0) - /* SSLerr() and ssl3_send_alert() have been called */ - goto err; - - /* Otherwise enc_err == -1, which indicates bad padding - * (rec->length has not been changed in this case). - * To minimize information leaked via timing, we will perform - * the MAC computation anyway. */ - decryption_failed_or_bad_record_mac = 1; + al=SSL_AD_DECRYPTION_FAILED; + SSLerr(SSL_F_SSL3_GET_RECORD,SSL_R_BLOCK_CIPHER_PAD_IS_WRONG); + goto f_err; } #ifdef TLS_DEBUG @@ -423,53 +418,62 @@ printf("\n"); #endif /* r->length is now the compressed data plus mac */ - if ( (sess == NULL) || - (s->enc_read_ctx == NULL) || - (EVP_MD_CTX_md(s->read_hash) == NULL)) - clear=1; - - if (!clear) + if ((sess != NULL) && + (s->enc_read_ctx != NULL) && + (EVP_MD_CTX_md(s->read_hash) != NULL)) { - /* !clear => s->read_hash != NULL => mac_size != -1 */ + /* s->read_hash != NULL => mac_size != -1 */ + unsigned char *mac = NULL; + unsigned char mac_tmp[EVP_MAX_MD_SIZE]; mac_size=EVP_MD_CTX_size(s->read_hash); - OPENSSL_assert(mac_size >= 0); + OPENSSL_assert(mac_size <= EVP_MAX_MD_SIZE); - if (rr->length > SSL3_RT_MAX_COMPRESSED_LENGTH+extra+mac_size) + /* kludge: *_cbc_remove_padding passes padding length in rr->type */ + orig_len = rr->length+((unsigned int)rr->type>>8); + + /* orig_len is the length of the record before any padding was + * removed. This is public information, as is the MAC in use, + * therefore we can safely process the record in a different + * amount of time if it's too short to possibly contain a MAC. + */ + if (orig_len < mac_size || + /* CBC records must have a padding length byte too. */ + (EVP_CIPHER_CTX_mode(s->enc_read_ctx) == EVP_CIPH_CBC_MODE && + orig_len < mac_size+1)) { -#if 0 /* OK only for stream ciphers (then rr->length is visible from ciphertext anyway) */ - al=SSL_AD_RECORD_OVERFLOW; - SSLerr(SSL_F_SSL3_GET_RECORD,SSL_R_PRE_MAC_LENGTH_TOO_LONG); + al=SSL_AD_DECODE_ERROR; + SSLerr(SSL_F_SSL3_GET_RECORD,SSL_R_LENGTH_TOO_SHORT); goto f_err; -#else - decryption_failed_or_bad_record_mac = 1; -#endif } - /* check the MAC for rr->input (it's in mac_size bytes at the tail) */ - if (rr->length >= (unsigned int)mac_size) + + if (EVP_CIPHER_CTX_mode(s->enc_read_ctx) == EVP_CIPH_CBC_MODE) { + /* We update the length so that the TLS header bytes + * can be constructed correctly but we need to extract + * the MAC in constant time from within the record, + * without leaking the contents of the padding bytes. + * */ + mac = mac_tmp; + ssl3_cbc_copy_mac(mac_tmp, rr, mac_size, orig_len); rr->length -= mac_size; - mac = &rr->data[rr->length]; } else { - /* record (minus padding) is too short to contain a MAC */ -#if 0 /* OK only for stream ciphers */ - al=SSL_AD_DECODE_ERROR; - SSLerr(SSL_F_SSL3_GET_RECORD,SSL_R_LENGTH_TOO_SHORT); - goto f_err; -#else - decryption_failed_or_bad_record_mac = 1; - rr->length = 0; -#endif - } - i=s->method->ssl3_enc->mac(s,md,0); - if (i < 0 || mac == NULL || memcmp(md, mac, (size_t)mac_size) != 0) - { - decryption_failed_or_bad_record_mac = 1; + /* In this case there's no padding, so |orig_len| + * equals |rec->length| and we checked that there's + * enough bytes for |mac_size| above. */ + rr->length -= mac_size; + mac = &rr->data[rr->length]; } + + i=s->method->ssl3_enc->mac(s,md,0 /* not send */); + if (i < 0 || mac == NULL || CRYPTO_memcmp(md, mac, (size_t)mac_size) != 0) + enc_err = -1; + if (rr->length > SSL3_RT_MAX_COMPRESSED_LENGTH+extra+mac_size) + enc_err = -1; } - if (decryption_failed_or_bad_record_mac) + if (enc_err < 0) { /* A separate 'decryption_failed' alert was introduced with TLS 1.0, * SSL 3.0 only has 'bad_record_mac'. But unless a decryption @@ -744,6 +748,7 @@ static int do_ssl3_write(SSL *s, int type, const unsigned char *buf, * bytes and record version number > TLS 1.0 */ if (s->state == SSL3_ST_CW_CLNT_HELLO_B + && !s->renegotiate && TLS1_get_version(s) > TLS1_VERSION) *(p++) = 0x1; else @@ -1238,7 +1243,7 @@ start: goto f_err; } #ifdef SSL_AD_MISSING_SRP_USERNAME - if (alert_descr == SSL_AD_MISSING_SRP_USERNAME) + else if (alert_descr == SSL_AD_MISSING_SRP_USERNAME) return(0); #endif } @@ -1454,8 +1459,14 @@ int ssl3_do_change_cipher_spec(SSL *s) slen=s->method->ssl3_enc->client_finished_label_len; } - s->s3->tmp.peer_finish_md_len = s->method->ssl3_enc->final_finish_mac(s, + i = s->method->ssl3_enc->final_finish_mac(s, sender,slen,s->s3->tmp.peer_finish_md); + if (i == 0) + { + SSLerr(SSL_F_SSL3_DO_CHANGE_CIPHER_SPEC, ERR_R_INTERNAL_ERROR); + return 0; + } + s->s3->tmp.peer_finish_md_len = i; return(1); } diff --git a/src/lib/libssl/s3_srvr.c b/src/lib/libssl/s3_srvr.c index 118939fabb..9ac19c05f2 100644 --- a/src/lib/libssl/s3_srvr.c +++ b/src/lib/libssl/s3_srvr.c @@ -191,7 +191,8 @@ static int ssl_check_srp_ext_ClientHello(SSL *s, int *al) { if(s->srp_ctx.login == NULL) { - /* There isn't any srp login extension !!! */ + /* RFC 5054 says SHOULD reject, + we do so if There is no srp login name */ ret = SSL3_AL_FATAL; *al = SSL_AD_UNKNOWN_PSK_IDENTITY; } @@ -378,6 +379,7 @@ int ssl3_accept(SSL *s) } } #endif + s->renegotiate = 2; s->state=SSL3_ST_SW_SRVR_HELLO_A; s->init_num=0; @@ -956,7 +958,8 @@ int ssl3_get_client_hello(SSL *s) (s->version != DTLS1_VERSION && s->client_version < s->version)) { SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO, SSL_R_WRONG_VERSION_NUMBER); - if ((s->client_version>>8) == SSL3_VERSION_MAJOR) + if ((s->client_version>>8) == SSL3_VERSION_MAJOR && + !s->enc_write_ctx && !s->write_hash) { /* similar to ssl3_get_record, send alert using remote version number */ s->version = s->client_version; @@ -1181,7 +1184,7 @@ int ssl3_get_client_hello(SSL *s) goto f_err; } } - if (ssl_check_clienthello_tlsext(s) <= 0) { + if (ssl_check_clienthello_tlsext_early(s) <= 0) { SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,SSL_R_CLIENTHELLO_TLSEXT); goto err; } @@ -1191,12 +1194,9 @@ int ssl3_get_client_hello(SSL *s) * server_random before calling tls_session_secret_cb in order to allow * SessionTicket processing to use it in key derivation. */ { - unsigned long Time; unsigned char *pos; - Time=(unsigned long)time(NULL); /* Time */ pos=s->s3->server_random; - l2n(Time,pos); - if (RAND_pseudo_bytes(pos,SSL3_RANDOM_SIZE-4) <= 0) + if (ssl_fill_hello_random(s, 1, pos, SSL3_RANDOM_SIZE) <= 0) { al=SSL_AD_INTERNAL_ERROR; goto f_err; @@ -1389,7 +1389,10 @@ int ssl3_get_client_hello(SSL *s) if (TLS1_get_version(s) < TLS1_2_VERSION || !(s->verify_mode & SSL_VERIFY_PEER)) { if (!ssl3_digest_cached_records(s)) + { + al = SSL_AD_INTERNAL_ERROR; goto f_err; + } } /* we now have the following setup. @@ -1403,6 +1406,16 @@ int ssl3_get_client_hello(SSL *s) * s->tmp.new_cipher - the new cipher to use. */ + /* Handles TLS extensions that we couldn't check earlier */ + if (s->version >= SSL3_VERSION) + { + if (ssl_check_clienthello_tlsext_late(s) <= 0) + { + SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO, SSL_R_CLIENTHELLO_TLSEXT); + goto err; + } + } + if (ret < 0) ret=1; if (0) { @@ -1420,19 +1433,13 @@ int ssl3_send_server_hello(SSL *s) unsigned char *p,*d; int i,sl; unsigned long l; -#ifdef OPENSSL_NO_TLSEXT - unsigned long Time; -#endif if (s->state == SSL3_ST_SW_SRVR_HELLO_A) { buf=(unsigned char *)s->init_buf->data; #ifdef OPENSSL_NO_TLSEXT p=s->s3->server_random; - /* Generate server_random if it was not needed previously */ - Time=(unsigned long)time(NULL); /* Time */ - l2n(Time,p); - if (RAND_pseudo_bytes(p,SSL3_RANDOM_SIZE-4) <= 0) + if (ssl_fill_hello_random(s, 1, p, SSL3_RANDOM_SIZE) <= 0) return -1; #endif /* Do the message type and length last */ @@ -1823,7 +1830,7 @@ int ssl3_send_server_key_exchange(SSL *s) SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,SSL_R_UNKNOWN_KEY_EXCHANGE_TYPE); goto f_err; } - for (i=0; r[i] != NULL && i<4; i++) + for (i=0; i < 4 && r[i] != NULL; i++) { nr[i]=BN_num_bytes(r[i]); #ifndef OPENSSL_NO_SRP @@ -1859,7 +1866,7 @@ int ssl3_send_server_key_exchange(SSL *s) d=(unsigned char *)s->init_buf->data; p= &(d[4]); - for (i=0; r[i] != NULL && i<4; i++) + for (i=0; i < 4 && r[i] != NULL; i++) { #ifndef OPENSSL_NO_SRP if ((i == 2) && (type & SSL_kSRP)) diff --git a/src/lib/libssl/ssl.h b/src/lib/libssl/ssl.h index 8b0c2a2dac..7219a0e64b 100644 --- a/src/lib/libssl/ssl.h +++ b/src/lib/libssl/ssl.h @@ -493,6 +493,9 @@ struct ssl_session_st char *psk_identity_hint; char *psk_identity; #endif + /* Used to indicate that session resumption is not allowed. + * Applications can also set this bit for a new session via + * not_resumable_session_cb to disable session caching and tickets. */ int not_resumable; /* The cert is the certificate used to establish this connection */ @@ -535,7 +538,7 @@ struct ssl_session_st #endif /* OPENSSL_NO_EC */ /* RFC4507 info */ unsigned char *tlsext_tick; /* Session ticket */ - size_t tlsext_ticklen; /* Session ticket length */ + size_t tlsext_ticklen; /* Session ticket length */ long tlsext_tick_lifetime_hint; /* Session lifetime hint in seconds */ #endif #ifndef OPENSSL_NO_SRP @@ -552,11 +555,14 @@ struct ssl_session_st #define SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG 0x00000008L #define SSL_OP_SSLREF2_REUSE_CERT_TYPE_BUG 0x00000010L #define SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER 0x00000020L -#define SSL_OP_MSIE_SSLV2_RSA_PADDING 0x00000040L /* no effect since 0.9.7h and 0.9.8b */ +#define SSL_OP_SAFARI_ECDHE_ECDSA_BUG 0x00000040L #define SSL_OP_SSLEAY_080_CLIENT_DH_BUG 0x00000080L #define SSL_OP_TLS_D5_BUG 0x00000100L #define SSL_OP_TLS_BLOCK_PADDING_BUG 0x00000200L +/* Hasn't done anything since OpenSSL 0.9.7h, retained for compatibility */ +#define SSL_OP_MSIE_SSLV2_RSA_PADDING 0x0 + /* Disable SSL 3.0/TLS 1.0 CBC vulnerability workaround that was added * in OpenSSL 0.9.6d. Usually (depending on the application protocol) * the workaround is not needed. Unfortunately some broken SSL/TLS @@ -638,6 +644,12 @@ struct ssl_session_st * TLS only.) "Released" buffers are put onto a free-list in the context * or just freed (depending on the context's setting for freelist_max_len). */ #define SSL_MODE_RELEASE_BUFFERS 0x00000010L +/* Send the current time in the Random fields of the ClientHello and + * ServerHello records for compatibility with hypothetical implementations + * that require it. + */ +#define SSL_MODE_SEND_CLIENTHELLO_TIME 0x00000020L +#define SSL_MODE_SEND_SERVERHELLO_TIME 0x00000040L /* Note: SSL[_CTX]_set_{options,mode} use |= op on the previous value, * they cannot be used to clear bits. */ @@ -903,7 +915,7 @@ struct ssl_ctx_st */ unsigned int max_send_fragment; -#ifndef OPENSSL_ENGINE +#ifndef OPENSSL_NO_ENGINE /* Engine to pass requests for client certs to */ ENGINE *client_cert_engine; @@ -927,6 +939,7 @@ struct ssl_ctx_st /* Callback for status request */ int (*tlsext_status_cb)(SSL *ssl, void *arg); void *tlsext_status_arg; + /* draft-rescorla-tls-opaque-prf-input-00.txt information */ int (*tlsext_opaque_prf_input_callback)(SSL *, void *peerinput, size_t len, void *arg); void *tlsext_opaque_prf_input_callback_arg; @@ -952,6 +965,7 @@ struct ssl_ctx_st #endif #ifndef OPENSSL_NO_TLSEXT + # ifndef OPENSSL_NO_NEXTPROTONEG /* Next protocol negotiation information */ /* (for experimental NPN extension). */ @@ -2206,6 +2220,7 @@ void ERR_load_SSL_strings(void); #define SSL_F_SSL_GET_NEW_SESSION 181 #define SSL_F_SSL_GET_PREV_SESSION 217 #define SSL_F_SSL_GET_SERVER_SEND_CERT 182 +#define SSL_F_SSL_GET_SERVER_SEND_PKEY 317 #define SSL_F_SSL_GET_SIGN_PKEY 183 #define SSL_F_SSL_INIT_WBIO_BUFFER 184 #define SSL_F_SSL_LOAD_CLIENT_CA_FILE 185 diff --git a/src/lib/libssl/ssl3.h b/src/lib/libssl/ssl3.h index 112e627de0..cb8b2492ec 100644 --- a/src/lib/libssl/ssl3.h +++ b/src/lib/libssl/ssl3.h @@ -539,6 +539,15 @@ typedef struct ssl3_state_st /* Set if we saw the Next Protocol Negotiation extension from our peer. */ int next_proto_neg_seen; #endif + +#ifndef OPENSSL_NO_TLSEXT +#ifndef OPENSSL_NO_EC + /* This is set to true if we believe that this is a version of Safari + * running on OS X 10.6 or newer. We wish to know this because Safari + * on 10.8 .. 10.8.3 has broken ECDHE-ECDSA support. */ + char is_probably_safari; +#endif /* !OPENSSL_NO_EC */ +#endif /* !OPENSSL_NO_TLSEXT */ } SSL3_STATE; #endif @@ -578,8 +587,10 @@ typedef struct ssl3_state_st #define SSL3_ST_CW_CERT_VRFY_B (0x191|SSL_ST_CONNECT) #define SSL3_ST_CW_CHANGE_A (0x1A0|SSL_ST_CONNECT) #define SSL3_ST_CW_CHANGE_B (0x1A1|SSL_ST_CONNECT) +#ifndef OPENSSL_NO_NEXTPROTONEG #define SSL3_ST_CW_NEXT_PROTO_A (0x200|SSL_ST_CONNECT) #define SSL3_ST_CW_NEXT_PROTO_B (0x201|SSL_ST_CONNECT) +#endif #define SSL3_ST_CW_FINISHED_A (0x1B0|SSL_ST_CONNECT) #define SSL3_ST_CW_FINISHED_B (0x1B1|SSL_ST_CONNECT) /* read from server */ @@ -629,8 +640,10 @@ typedef struct ssl3_state_st #define SSL3_ST_SR_CERT_VRFY_B (0x1A1|SSL_ST_ACCEPT) #define SSL3_ST_SR_CHANGE_A (0x1B0|SSL_ST_ACCEPT) #define SSL3_ST_SR_CHANGE_B (0x1B1|SSL_ST_ACCEPT) +#ifndef OPENSSL_NO_NEXTPROTONEG #define SSL3_ST_SR_NEXT_PROTO_A (0x210|SSL_ST_ACCEPT) #define SSL3_ST_SR_NEXT_PROTO_B (0x211|SSL_ST_ACCEPT) +#endif #define SSL3_ST_SR_FINISHED_A (0x1C0|SSL_ST_ACCEPT) #define SSL3_ST_SR_FINISHED_B (0x1C1|SSL_ST_ACCEPT) /* write to client */ @@ -655,7 +668,9 @@ typedef struct ssl3_state_st #define SSL3_MT_CLIENT_KEY_EXCHANGE 16 #define SSL3_MT_FINISHED 20 #define SSL3_MT_CERTIFICATE_STATUS 22 +#ifndef OPENSSL_NO_NEXTPROTONEG #define SSL3_MT_NEXT_PROTO 67 +#endif #define DTLS1_MT_HELLO_VERIFY_REQUEST 3 diff --git a/src/lib/libssl/ssl_algs.c b/src/lib/libssl/ssl_algs.c index d443143c59..9c34d19725 100644 --- a/src/lib/libssl/ssl_algs.c +++ b/src/lib/libssl/ssl_algs.c @@ -94,6 +94,7 @@ int SSL_library_init(void) EVP_add_cipher(EVP_aes_128_cbc_hmac_sha1()); EVP_add_cipher(EVP_aes_256_cbc_hmac_sha1()); #endif + #endif #ifndef OPENSSL_NO_CAMELLIA EVP_add_cipher(EVP_camellia_128_cbc()); diff --git a/src/lib/libssl/ssl_cert.c b/src/lib/libssl/ssl_cert.c index 917be31876..5123a89182 100644 --- a/src/lib/libssl/ssl_cert.c +++ b/src/lib/libssl/ssl_cert.c @@ -164,14 +164,14 @@ static void ssl_cert_set_default_md(CERT *cert) { /* Set digest values to defaults */ #ifndef OPENSSL_NO_DSA - cert->pkeys[SSL_PKEY_DSA_SIGN].digest = EVP_dss1(); + cert->pkeys[SSL_PKEY_DSA_SIGN].digest = EVP_sha1(); #endif #ifndef OPENSSL_NO_RSA cert->pkeys[SSL_PKEY_RSA_SIGN].digest = EVP_sha1(); cert->pkeys[SSL_PKEY_RSA_ENC].digest = EVP_sha1(); #endif #ifndef OPENSSL_NO_ECDSA - cert->pkeys[SSL_PKEY_ECC].digest = EVP_ecdsa(); + cert->pkeys[SSL_PKEY_ECC].digest = EVP_sha1(); #endif } diff --git a/src/lib/libssl/ssl_ciph.c b/src/lib/libssl/ssl_ciph.c index 92d1e94d6a..0aba8e048c 100644 --- a/src/lib/libssl/ssl_ciph.c +++ b/src/lib/libssl/ssl_ciph.c @@ -312,6 +312,7 @@ static const SSL_CIPHER cipher_aliases[]={ {0,SSL_TXT_SSLV2,0, 0,0,0,0,SSL_SSLV2, 0,0,0,0}, {0,SSL_TXT_SSLV3,0, 0,0,0,0,SSL_SSLV3, 0,0,0,0}, {0,SSL_TXT_TLSV1,0, 0,0,0,0,SSL_TLSV1, 0,0,0,0}, + {0,SSL_TXT_TLSV1_2,0, 0,0,0,0,SSL_TLSV1_2, 0,0,0,0}, /* export flag */ {0,SSL_TXT_EXP,0, 0,0,0,0,0,SSL_EXPORT,0,0,0}, @@ -1150,9 +1151,9 @@ static int ssl_cipher_process_rulestr(const char *rule_str, while ( ((ch >= 'A') && (ch <= 'Z')) || ((ch >= '0') && (ch <= '9')) || ((ch >= 'a') && (ch <= 'z')) || - (ch == '-')) + (ch == '-') || (ch == '.')) #else - while ( isalnum(ch) || (ch == '-')) + while ( isalnum(ch) || (ch == '-') || (ch == '.')) #endif { ch = *(++l); diff --git a/src/lib/libssl/ssl_err.c b/src/lib/libssl/ssl_err.c index 2577c6895a..370fb57e3b 100644 --- a/src/lib/libssl/ssl_err.c +++ b/src/lib/libssl/ssl_err.c @@ -228,6 +228,7 @@ static ERR_STRING_DATA SSL_str_functs[]= {ERR_FUNC(SSL_F_SSL_GET_NEW_SESSION), "SSL_GET_NEW_SESSION"}, {ERR_FUNC(SSL_F_SSL_GET_PREV_SESSION), "SSL_GET_PREV_SESSION"}, {ERR_FUNC(SSL_F_SSL_GET_SERVER_SEND_CERT), "SSL_GET_SERVER_SEND_CERT"}, +{ERR_FUNC(SSL_F_SSL_GET_SERVER_SEND_PKEY), "SSL_GET_SERVER_SEND_PKEY"}, {ERR_FUNC(SSL_F_SSL_GET_SIGN_PKEY), "SSL_GET_SIGN_PKEY"}, {ERR_FUNC(SSL_F_SSL_INIT_WBIO_BUFFER), "SSL_INIT_WBIO_BUFFER"}, {ERR_FUNC(SSL_F_SSL_LOAD_CLIENT_CA_FILE), "SSL_load_client_CA_file"}, diff --git a/src/lib/libssl/ssl_lib.c b/src/lib/libssl/ssl_lib.c index f82d071d6e..6dbc3c1f7d 100644 --- a/src/lib/libssl/ssl_lib.c +++ b/src/lib/libssl/ssl_lib.c @@ -597,8 +597,10 @@ void SSL_free(SSL *s) OPENSSL_free(s->next_proto_negotiated); #endif +#ifndef OPENSSL_NO_SRTP if (s->srtp_profiles) sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles); +#endif OPENSSL_free(s); } @@ -1795,7 +1797,9 @@ SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth) CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data); ret->extra_certs=NULL; - ret->comp_methods=SSL_COMP_get_compression_methods(); + /* No compression for DTLS */ + if (meth->version != DTLS1_VERSION) + ret->comp_methods=SSL_COMP_get_compression_methods(); ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH; @@ -1952,8 +1956,10 @@ void SSL_CTX_free(SSL_CTX *a) a->comp_methods = NULL; #endif +#ifndef OPENSSL_NO_SRTP if (a->srtp_profiles) sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles); +#endif #ifndef OPENSSL_NO_PSK if (a->psk_identity_hint) @@ -2287,7 +2293,7 @@ int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s) #endif /* THIS NEEDS CLEANING UP */ -X509 *ssl_get_server_send_cert(SSL *s) +CERT_PKEY *ssl_get_server_send_pkey(const SSL *s) { unsigned long alg_k,alg_a; CERT *c; @@ -2342,12 +2348,20 @@ X509 *ssl_get_server_send_cert(SSL *s) i=SSL_PKEY_GOST01; else /* if (alg_a & SSL_aNULL) */ { - SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,ERR_R_INTERNAL_ERROR); + SSLerr(SSL_F_SSL_GET_SERVER_SEND_PKEY,ERR_R_INTERNAL_ERROR); return(NULL); } - if (c->pkeys[i].x509 == NULL) return(NULL); - return(c->pkeys[i].x509); + return c->pkeys + i; + } + +X509 *ssl_get_server_send_cert(const SSL *s) + { + CERT_PKEY *cpk; + cpk = ssl_get_server_send_pkey(s); + if (!cpk) + return NULL; + return cpk->x509; } EVP_PKEY *ssl_get_sign_pkey(SSL *s,const SSL_CIPHER *cipher, const EVP_MD **pmd) @@ -2608,7 +2622,7 @@ const char *SSL_get_version(const SSL *s) return("TLSv1.2"); else if (s->version == TLS1_1_VERSION) return("TLSv1.1"); - if (s->version == TLS1_VERSION) + else if (s->version == TLS1_VERSION) return("TLSv1"); else if (s->version == SSL3_VERSION) return("SSLv3"); diff --git a/src/lib/libssl/ssl_locl.h b/src/lib/libssl/ssl_locl.h index d87fd51cfa..e485907748 100644 --- a/src/lib/libssl/ssl_locl.h +++ b/src/lib/libssl/ssl_locl.h @@ -215,6 +215,15 @@ *((c)++)=(unsigned char)(((l)>> 8)&0xff), \ *((c)++)=(unsigned char)(((l) )&0xff)) +#define l2n8(l,c) (*((c)++)=(unsigned char)(((l)>>56)&0xff), \ + *((c)++)=(unsigned char)(((l)>>48)&0xff), \ + *((c)++)=(unsigned char)(((l)>>40)&0xff), \ + *((c)++)=(unsigned char)(((l)>>32)&0xff), \ + *((c)++)=(unsigned char)(((l)>>24)&0xff), \ + *((c)++)=(unsigned char)(((l)>>16)&0xff), \ + *((c)++)=(unsigned char)(((l)>> 8)&0xff), \ + *((c)++)=(unsigned char)(((l) )&0xff)) + #define n2l6(c,l) (l =((BN_ULLONG)(*((c)++)))<<40, \ l|=((BN_ULLONG)(*((c)++)))<<32, \ l|=((BN_ULLONG)(*((c)++)))<<24, \ @@ -612,6 +621,8 @@ extern SSL3_ENC_METHOD TLSv1_enc_data; extern SSL3_ENC_METHOD SSLv3_enc_data; extern SSL3_ENC_METHOD DTLSv1_enc_data; +#define SSL_IS_DTLS(s) (s->method->version == DTLS1_VERSION) + #define IMPLEMENT_tls_meth_func(version, func_name, s_accept, s_connect, \ s_get_meth) \ const SSL_METHOD *func_name(void) \ @@ -830,13 +841,15 @@ int ssl_verify_cert_chain(SSL *s,STACK_OF(X509) *sk); int ssl_undefined_function(SSL *s); int ssl_undefined_void_function(void); int ssl_undefined_const_function(const SSL *s); -X509 *ssl_get_server_send_cert(SSL *); +CERT_PKEY *ssl_get_server_send_pkey(const SSL *s); +X509 *ssl_get_server_send_cert(const SSL *); EVP_PKEY *ssl_get_sign_pkey(SSL *s,const SSL_CIPHER *c, const EVP_MD **pmd); int ssl_cert_type(X509 *x,EVP_PKEY *pkey); void ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher); STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s); int ssl_verify_alarm_type(long type); void ssl_load_ciphers(void); +int ssl_fill_hello_random(SSL *s, int server, unsigned char *field, int len); int ssl2_enc_init(SSL *s, int client); int ssl2_generate_key_material(SSL *s); @@ -1088,7 +1101,8 @@ int ssl_parse_clienthello_tlsext(SSL *s, unsigned char **data, unsigned char *d, int ssl_parse_serverhello_tlsext(SSL *s, unsigned char **data, unsigned char *d, int n, int *al); int ssl_prepare_clienthello_tlsext(SSL *s); int ssl_prepare_serverhello_tlsext(SSL *s); -int ssl_check_clienthello_tlsext(SSL *s); +int ssl_check_clienthello_tlsext_early(SSL *s); +int ssl_check_clienthello_tlsext_late(SSL *s); int ssl_check_serverhello_tlsext(SSL *s); #ifndef OPENSSL_NO_HEARTBEATS @@ -1131,4 +1145,33 @@ int ssl_parse_clienthello_use_srtp_ext(SSL *s, unsigned char *d, int len,int *al int ssl_add_serverhello_use_srtp_ext(SSL *s, unsigned char *p, int *len, int maxlen); int ssl_parse_serverhello_use_srtp_ext(SSL *s, unsigned char *d, int len,int *al); +/* s3_cbc.c */ +void ssl3_cbc_copy_mac(unsigned char* out, + const SSL3_RECORD *rec, + unsigned md_size,unsigned orig_len); +int ssl3_cbc_remove_padding(const SSL* s, + SSL3_RECORD *rec, + unsigned block_size, + unsigned mac_size); +int tls1_cbc_remove_padding(const SSL* s, + SSL3_RECORD *rec, + unsigned block_size, + unsigned mac_size); +char ssl3_cbc_record_digest_supported(const EVP_MD_CTX *ctx); +void ssl3_cbc_digest_record( + const EVP_MD_CTX *ctx, + unsigned char* md_out, + size_t* md_out_size, + const unsigned char header[13], + const unsigned char *data, + size_t data_plus_mac_size, + size_t data_plus_mac_plus_padding_size, + const unsigned char *mac_secret, + unsigned mac_secret_length, + char is_sslv3); + +void tls_fips_digest_extra( + const EVP_CIPHER_CTX *cipher_ctx, EVP_MD_CTX *mac_ctx, + const unsigned char *data, size_t data_len, size_t orig_len); + #endif diff --git a/src/lib/libssl/ssl_rsa.c b/src/lib/libssl/ssl_rsa.c index c0960b5712..60e7b66859 100644 --- a/src/lib/libssl/ssl_rsa.c +++ b/src/lib/libssl/ssl_rsa.c @@ -710,7 +710,7 @@ int SSL_CTX_use_certificate_chain_file(SSL_CTX *ctx, const char *file) ERR_clear_error(); /* clear error stack for SSL_CTX_use_certificate() */ - in=BIO_new(BIO_s_file_internal()); + in = BIO_new(BIO_s_file_internal()); if (in == NULL) { SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_CHAIN_FILE,ERR_R_BUF_LIB); @@ -723,14 +723,16 @@ int SSL_CTX_use_certificate_chain_file(SSL_CTX *ctx, const char *file) goto end; } - x=PEM_read_bio_X509_AUX(in,NULL,ctx->default_passwd_callback,ctx->default_passwd_callback_userdata); + x=PEM_read_bio_X509_AUX(in,NULL,ctx->default_passwd_callback, + ctx->default_passwd_callback_userdata); if (x == NULL) { SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_CHAIN_FILE,ERR_R_PEM_LIB); goto end; } - ret=SSL_CTX_use_certificate(ctx,x); + ret = SSL_CTX_use_certificate(ctx, x); + if (ERR_peek_error() != 0) ret = 0; /* Key/certificate mismatch doesn't imply ret==0 ... */ if (ret) @@ -742,13 +744,15 @@ int SSL_CTX_use_certificate_chain_file(SSL_CTX *ctx, const char *file) int r; unsigned long err; - if (ctx->extra_certs != NULL) + if (ctx->extra_certs != NULL) { sk_X509_pop_free(ctx->extra_certs, X509_free); ctx->extra_certs = NULL; } - while ((ca = PEM_read_bio_X509(in,NULL,ctx->default_passwd_callback,ctx->default_passwd_callback_userdata)) + while ((ca = PEM_read_bio_X509(in, NULL, + ctx->default_passwd_callback, + ctx->default_passwd_callback_userdata)) != NULL) { r = SSL_CTX_add_extra_chain_cert(ctx, ca); diff --git a/src/lib/libssl/t1_enc.c b/src/lib/libssl/t1_enc.c index f7bdeb3b9d..0c4cddedf8 100644 --- a/src/lib/libssl/t1_enc.c +++ b/src/lib/libssl/t1_enc.c @@ -361,7 +361,7 @@ int tls1_change_cipher_state(SSL *s, int which) { int i; for (i=0; is3->tmp.key_block_length; i++) - printf("%02x", key_block[i]); printf("\n"); + printf("%02x", s->s3->tmp.key_block[i]); printf("\n"); } #endif /* KSSL_DEBUG */ @@ -414,15 +414,20 @@ int tls1_change_cipher_state(SSL *s, int which) s->mac_flags |= SSL_MAC_FLAG_WRITE_MAC_STREAM; else s->mac_flags &= ~SSL_MAC_FLAG_WRITE_MAC_STREAM; - if (s->enc_write_ctx != NULL) + if (s->enc_write_ctx != NULL && !SSL_IS_DTLS(s)) reuse_dd = 1; - else if ((s->enc_write_ctx=OPENSSL_malloc(sizeof(EVP_CIPHER_CTX))) == NULL) + else if ((s->enc_write_ctx=EVP_CIPHER_CTX_new()) == NULL) goto err; - else - /* make sure it's intialized in case we exit later with an error */ - EVP_CIPHER_CTX_init(s->enc_write_ctx); dd= s->enc_write_ctx; - mac_ctx = ssl_replace_hash(&s->write_hash,NULL); + if (SSL_IS_DTLS(s)) + { + mac_ctx = EVP_MD_CTX_create(); + if (!mac_ctx) + goto err; + s->write_hash = mac_ctx; + } + else + mac_ctx = ssl_replace_hash(&s->write_hash,NULL); #ifndef OPENSSL_NO_COMP if (s->compress != NULL) { @@ -667,12 +672,21 @@ err: return(ret); } +/* tls1_enc encrypts/decrypts the record in |s->wrec| / |s->rrec|, respectively. + * + * Returns: + * 0: (in non-constant time) if the record is publically invalid (i.e. too + * short etc). + * 1: if the record's padding is valid / the encryption was successful. + * -1: if the record's padding/AEAD-authenticator is invalid or, if sending, + * an internal error occured. + */ int tls1_enc(SSL *s, int send) { SSL3_RECORD *rec; EVP_CIPHER_CTX *ds; unsigned long l; - int bs,i,ii,j,k,pad=0; + int bs,i,j,k,pad=0,ret,mac_size=0; const EVP_CIPHER *enc; if (send) @@ -729,11 +743,11 @@ int tls1_enc(SSL *s, int send) printf("tls1_enc(%d)\n", send); #endif /* KSSL_DEBUG */ - if ((s->session == NULL) || (ds == NULL) || - (enc == NULL)) + if ((s->session == NULL) || (ds == NULL) || (enc == NULL)) { memmove(rec->data,rec->input,rec->length); rec->input=rec->data; + ret = 1; } else { @@ -797,13 +811,13 @@ int tls1_enc(SSL *s, int send) #ifdef KSSL_DEBUG { - unsigned long ui; + unsigned long ui; printf("EVP_Cipher(ds=%p,rec->data=%p,rec->input=%p,l=%ld) ==>\n", - ds,rec->data,rec->input,l); + ds,rec->data,rec->input,l); printf("\tEVP_CIPHER_CTX: %d buf_len, %d key_len [%d %d], %d iv_len\n", - ds->buf_len, ds->cipher->key_len, - DES_KEY_SZ, DES_SCHEDULE_SZ, - ds->cipher->iv_len); + ds->buf_len, ds->cipher->key_len, + DES_KEY_SZ, DES_SCHEDULE_SZ, + ds->cipher->iv_len); printf("\t\tIV: "); for (i=0; icipher->iv_len; i++) printf("%02X", ds->iv[i]); printf("\n"); @@ -816,13 +830,7 @@ int tls1_enc(SSL *s, int send) if (!send) { if (l == 0 || l%bs != 0) - { - if (s->version >= TLS1_1_VERSION) - return -1; - SSLerr(SSL_F_TLS1_ENC,SSL_R_BLOCK_CIPHER_PAD_IS_WRONG); - ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECRYPTION_FAILED); return 0; - } } i = EVP_Cipher(ds,rec->data,rec->input,l); @@ -839,68 +847,24 @@ int tls1_enc(SSL *s, int send) #ifdef KSSL_DEBUG { - unsigned long i; - printf("\trec->data="); + unsigned long i; + printf("\trec->data="); for (i=0; idata[i]); printf("\n"); - } + printf(" %02x", rec->data[i]); printf("\n"); + } #endif /* KSSL_DEBUG */ + ret = 1; + if (EVP_MD_CTX_md(s->read_hash) != NULL) + mac_size = EVP_MD_CTX_size(s->read_hash); if ((bs != 1) && !send) - { - ii=i=rec->data[l-1]; /* padding_length */ - i++; - /* NB: if compression is in operation the first packet - * may not be of even length so the padding bug check - * cannot be performed. This bug workaround has been - * around since SSLeay so hopefully it is either fixed - * now or no buggy implementation supports compression - * [steve] - */ - if ( (s->options&SSL_OP_TLS_BLOCK_PADDING_BUG) - && !s->expand) - { - /* First packet is even in size, so check */ - if ((memcmp(s->s3->read_sequence, - "\0\0\0\0\0\0\0\0",8) == 0) && !(ii & 1)) - s->s3->flags|=TLS1_FLAGS_TLS_PADDING_BUG; - if (s->s3->flags & TLS1_FLAGS_TLS_PADDING_BUG) - i--; - } - /* TLS 1.0 does not bound the number of padding bytes by the block size. - * All of them must have value 'padding_length'. */ - if (i > (int)rec->length) - { - /* Incorrect padding. SSLerr() and ssl3_alert are done - * by caller: we don't want to reveal whether this is - * a decryption error or a MAC verification failure - * (see http://www.openssl.org/~bodo/tls-cbc.txt) */ - return -1; - } - for (j=(int)(l-i); j<(int)l; j++) - { - if (rec->data[j] != ii) - { - /* Incorrect padding */ - return -1; - } - } - rec->length -=i; - if (s->version >= TLS1_1_VERSION - && EVP_CIPHER_CTX_mode(ds) == EVP_CIPH_CBC_MODE) - { - if (bs > (int)rec->length) - return -1; - rec->data += bs; /* skip the explicit IV */ - rec->input += bs; - rec->length -= bs; - } - } + ret = tls1_cbc_remove_padding(s, rec, bs, mac_size); if (pad && !send) rec->length -= pad; } - return(1); + return ret; } + int tls1_cert_verify_mac(SSL *s, int md_nid, unsigned char *out) { unsigned int ret; @@ -956,18 +920,19 @@ int tls1_final_finish_mac(SSL *s, if (mask & ssl_get_algorithm2(s)) { int hashsize = EVP_MD_size(md); - if (hashsize < 0 || hashsize > (int)(sizeof buf - (size_t)(q-buf))) + EVP_MD_CTX *hdgst = s->s3->handshake_dgst[idx]; + if (!hdgst || hashsize < 0 || hashsize > (int)(sizeof buf - (size_t)(q-buf))) { /* internal error: 'buf' is too small for this cipersuite! */ err = 1; } else { - EVP_MD_CTX_copy_ex(&ctx,s->s3->handshake_dgst[idx]); - EVP_DigestFinal_ex(&ctx,q,&i); - if (i != (unsigned int)hashsize) /* can't really happen */ + if (!EVP_MD_CTX_copy_ex(&ctx, hdgst) || + !EVP_DigestFinal_ex(&ctx,q,&i) || + (i != (unsigned int)hashsize)) err = 1; - q+=i; + q+=hashsize; } } } @@ -990,10 +955,10 @@ int tls1_mac(SSL *ssl, unsigned char *md, int send) SSL3_RECORD *rec; unsigned char *seq; EVP_MD_CTX *hash; - size_t md_size; + size_t md_size, orig_len; int i; EVP_MD_CTX hmac, *mac_ctx; - unsigned char buf[5]; + unsigned char header[13]; int stream_mac = (send?(ssl->mac_flags & SSL_MAC_FLAG_WRITE_MAC_STREAM):(ssl->mac_flags&SSL_MAC_FLAG_READ_MAC_STREAM)); int t; @@ -1014,12 +979,6 @@ int tls1_mac(SSL *ssl, unsigned char *md, int send) OPENSSL_assert(t >= 0); md_size=t; - buf[0]=rec->type; - buf[1]=(unsigned char)(ssl->version>>8); - buf[2]=(unsigned char)(ssl->version); - buf[3]=rec->length>>8; - buf[4]=rec->length&0xff; - /* I should fix this up TLS TLS TLS TLS TLS XXXXXXXX */ if (stream_mac) { @@ -1027,7 +986,8 @@ int tls1_mac(SSL *ssl, unsigned char *md, int send) } else { - EVP_MD_CTX_copy(&hmac,hash); + if (!EVP_MD_CTX_copy(&hmac,hash)) + return -1; mac_ctx = &hmac; } @@ -1038,17 +998,55 @@ int tls1_mac(SSL *ssl, unsigned char *md, int send) s2n(send?ssl->d1->w_epoch:ssl->d1->r_epoch, p); memcpy (p,&seq[2],6); - EVP_DigestSignUpdate(mac_ctx,dtlsseq,8); + memcpy(header, dtlsseq, 8); } else - EVP_DigestSignUpdate(mac_ctx,seq,8); + memcpy(header, seq, 8); + + /* kludge: tls1_cbc_remove_padding passes padding length in rec->type */ + orig_len = rec->length+md_size+((unsigned int)rec->type>>8); + rec->type &= 0xff; - EVP_DigestSignUpdate(mac_ctx,buf,5); - EVP_DigestSignUpdate(mac_ctx,rec->input,rec->length); - t=EVP_DigestSignFinal(mac_ctx,md,&md_size); - OPENSSL_assert(t > 0); + header[8]=rec->type; + header[9]=(unsigned char)(ssl->version>>8); + header[10]=(unsigned char)(ssl->version); + header[11]=(rec->length)>>8; + header[12]=(rec->length)&0xff; + + if (!send && + EVP_CIPHER_CTX_mode(ssl->enc_read_ctx) == EVP_CIPH_CBC_MODE && + ssl3_cbc_record_digest_supported(mac_ctx)) + { + /* This is a CBC-encrypted record. We must avoid leaking any + * timing-side channel information about how many blocks of + * data we are hashing because that gives an attacker a + * timing-oracle. */ + ssl3_cbc_digest_record( + mac_ctx, + md, &md_size, + header, rec->input, + rec->length + md_size, orig_len, + ssl->s3->read_mac_secret, + ssl->s3->read_mac_secret_size, + 0 /* not SSLv3 */); + } + else + { + EVP_DigestSignUpdate(mac_ctx,header,sizeof(header)); + EVP_DigestSignUpdate(mac_ctx,rec->input,rec->length); + t=EVP_DigestSignFinal(mac_ctx,md,&md_size); + OPENSSL_assert(t > 0); +#ifdef OPENSSL_FIPS + if (!send && FIPS_mode()) + tls_fips_digest_extra( + ssl->enc_read_ctx, + mac_ctx, rec->input, + rec->length, orig_len); +#endif + } - if (!stream_mac) EVP_MD_CTX_cleanup(&hmac); + if (!stream_mac) + EVP_MD_CTX_cleanup(&hmac); #ifdef TLS_DEBUG printf("sec="); {unsigned int z; for (z=0; zinit_buf->data; + /* The code in s23_clnt.c to build ClientHello messages includes the + * 5-byte record header in the buffer, while the code in s3_clnt.c does + * not. */ + if (s->state == SSL23_ST_CW_CLNT_HELLO_A) + hlen -= 5; + if (hlen > 0xff && hlen < 0x200) + { + hlen = 0x200 - hlen; + if (hlen >= 4) + hlen -= 4; + else + hlen = 0; + + s2n(TLSEXT_TYPE_padding, ret); + s2n(hlen, ret); + memset(ret, 0, hlen); + ret += hlen; + } + } +#endif if ((extdatalen = ret-p-2)== 0) return p; @@ -781,6 +805,7 @@ unsigned char *ssl_add_serverhello_tlsext(SSL *s, unsigned char *p, unsigned cha } #endif +#ifndef OPENSSL_NO_SRTP if(s->srtp_profile) { int el; @@ -799,6 +824,7 @@ unsigned char *ssl_add_serverhello_tlsext(SSL *s, unsigned char *p, unsigned cha } ret+=el; } +#endif if (((s->s3->tmp.new_cipher->id & 0xFFFF)==0x80 || (s->s3->tmp.new_cipher->id & 0xFFFF)==0x81) && (SSL_get_options(s) & SSL_OP_CRYPTOPRO_TLSEXT_BUG)) @@ -862,6 +888,89 @@ unsigned char *ssl_add_serverhello_tlsext(SSL *s, unsigned char *p, unsigned cha return ret; } +#ifndef OPENSSL_NO_EC +/* ssl_check_for_safari attempts to fingerprint Safari using OS X + * SecureTransport using the TLS extension block in |d|, of length |n|. + * Safari, since 10.6, sends exactly these extensions, in this order: + * SNI, + * elliptic_curves + * ec_point_formats + * + * We wish to fingerprint Safari because they broke ECDHE-ECDSA support in 10.8, + * but they advertise support. So enabling ECDHE-ECDSA ciphers breaks them. + * Sadly we cannot differentiate 10.6, 10.7 and 10.8.4 (which work), from + * 10.8..10.8.3 (which don't work). + */ +static void ssl_check_for_safari(SSL *s, const unsigned char *data, const unsigned char *d, int n) { + unsigned short type, size; + static const unsigned char kSafariExtensionsBlock[] = { + 0x00, 0x0a, /* elliptic_curves extension */ + 0x00, 0x08, /* 8 bytes */ + 0x00, 0x06, /* 6 bytes of curve ids */ + 0x00, 0x17, /* P-256 */ + 0x00, 0x18, /* P-384 */ + 0x00, 0x19, /* P-521 */ + + 0x00, 0x0b, /* ec_point_formats */ + 0x00, 0x02, /* 2 bytes */ + 0x01, /* 1 point format */ + 0x00, /* uncompressed */ + }; + + /* The following is only present in TLS 1.2 */ + static const unsigned char kSafariTLS12ExtensionsBlock[] = { + 0x00, 0x0d, /* signature_algorithms */ + 0x00, 0x0c, /* 12 bytes */ + 0x00, 0x0a, /* 10 bytes */ + 0x05, 0x01, /* SHA-384/RSA */ + 0x04, 0x01, /* SHA-256/RSA */ + 0x02, 0x01, /* SHA-1/RSA */ + 0x04, 0x03, /* SHA-256/ECDSA */ + 0x02, 0x03, /* SHA-1/ECDSA */ + }; + + if (data >= (d+n-2)) + return; + data += 2; + + if (data > (d+n-4)) + return; + n2s(data,type); + n2s(data,size); + + if (type != TLSEXT_TYPE_server_name) + return; + + if (data+size > d+n) + return; + data += size; + + if (TLS1_get_client_version(s) >= TLS1_2_VERSION) + { + const size_t len1 = sizeof(kSafariExtensionsBlock); + const size_t len2 = sizeof(kSafariTLS12ExtensionsBlock); + + if (data + len1 + len2 != d+n) + return; + if (memcmp(data, kSafariExtensionsBlock, len1) != 0) + return; + if (memcmp(data + len1, kSafariTLS12ExtensionsBlock, len2) != 0) + return; + } + else + { + const size_t len = sizeof(kSafariExtensionsBlock); + + if (data + len != d+n) + return; + if (memcmp(data, kSafariExtensionsBlock, len) != 0) + return; + } + + s->s3->is_probably_safari = 1; +} +#endif /* !OPENSSL_NO_EC */ + int ssl_parse_clienthello_tlsext(SSL *s, unsigned char **p, unsigned char *d, int n, int *al) { unsigned short type; @@ -882,6 +991,11 @@ int ssl_parse_clienthello_tlsext(SSL *s, unsigned char **p, unsigned char *d, in SSL_TLSEXT_HB_DONT_SEND_REQUESTS); #endif +#ifndef OPENSSL_NO_EC + if (s->options & SSL_OP_SAFARI_ECDHE_ECDSA_BUG) + ssl_check_for_safari(s, data, d, n); +#endif /* !OPENSSL_NO_EC */ + if (data >= (d+n-2)) goto ri_check; n2s(data,len); @@ -1077,7 +1191,8 @@ int ssl_parse_clienthello_tlsext(SSL *s, unsigned char **p, unsigned char *d, in int ellipticcurvelist_length = (*(sdata++) << 8); ellipticcurvelist_length += (*(sdata++)); - if (ellipticcurvelist_length != size - 2) + if (ellipticcurvelist_length != size - 2 || + ellipticcurvelist_length < 1) { *al = TLS1_AD_DECODE_ERROR; return 0; @@ -1176,7 +1291,7 @@ int ssl_parse_clienthello_tlsext(SSL *s, unsigned char **p, unsigned char *d, in } } else if (type == TLSEXT_TYPE_status_request && - s->version != DTLS1_VERSION && s->ctx->tlsext_status_cb) + s->version != DTLS1_VERSION) { if (size < 5) @@ -1328,12 +1443,14 @@ int ssl_parse_clienthello_tlsext(SSL *s, unsigned char **p, unsigned char *d, in #endif /* session ticket processed earlier */ +#ifndef OPENSSL_NO_SRTP else if (type == TLSEXT_TYPE_use_srtp) - { + { if(ssl_parse_clienthello_use_srtp_ext(s, data, size, al)) return 0; - } + } +#endif data+=size; } @@ -1433,7 +1550,8 @@ int ssl_parse_serverhello_tlsext(SSL *s, unsigned char **p, unsigned char *d, in unsigned char *sdata = data; int ecpointformatlist_length = *(sdata++); - if (ecpointformatlist_length != size - 1) + if (ecpointformatlist_length != size - 1 || + ecpointformatlist_length < 1) { *al = TLS1_AD_DECODE_ERROR; return 0; @@ -1527,7 +1645,7 @@ int ssl_parse_serverhello_tlsext(SSL *s, unsigned char **p, unsigned char *d, in unsigned char selected_len; /* We must have requested it. */ - if ((s->ctx->next_proto_select_cb == NULL)) + if (s->ctx->next_proto_select_cb == NULL) { *al = TLS1_AD_UNSUPPORTED_EXTENSION; return 0; @@ -1577,12 +1695,14 @@ int ssl_parse_serverhello_tlsext(SSL *s, unsigned char **p, unsigned char *d, in } } #endif +#ifndef OPENSSL_NO_SRTP else if (type == TLSEXT_TYPE_use_srtp) - { + { if(ssl_parse_serverhello_use_srtp_ext(s, data, size, al)) return 0; - } + } +#endif data+=size; } @@ -1763,7 +1883,7 @@ int ssl_prepare_serverhello_tlsext(SSL *s) return 1; } -int ssl_check_clienthello_tlsext(SSL *s) +int ssl_check_clienthello_tlsext_early(SSL *s) { int ret=SSL_TLSEXT_ERR_NOACK; int al = SSL_AD_UNRECOGNIZED_NAME; @@ -1782,42 +1902,12 @@ int ssl_check_clienthello_tlsext(SSL *s) else if (s->initial_ctx != NULL && s->initial_ctx->tlsext_servername_callback != 0) ret = s->initial_ctx->tlsext_servername_callback(s, &al, s->initial_ctx->tlsext_servername_arg); - /* If status request then ask callback what to do. - * Note: this must be called after servername callbacks in case - * the certificate has changed. - */ - if ((s->tlsext_status_type != -1) && s->ctx && s->ctx->tlsext_status_cb) - { - int r; - r = s->ctx->tlsext_status_cb(s, s->ctx->tlsext_status_arg); - switch (r) - { - /* We don't want to send a status request response */ - case SSL_TLSEXT_ERR_NOACK: - s->tlsext_status_expected = 0; - break; - /* status request response should be sent */ - case SSL_TLSEXT_ERR_OK: - if (s->tlsext_ocsp_resp) - s->tlsext_status_expected = 1; - else - s->tlsext_status_expected = 0; - break; - /* something bad happened */ - case SSL_TLSEXT_ERR_ALERT_FATAL: - ret = SSL_TLSEXT_ERR_ALERT_FATAL; - al = SSL_AD_INTERNAL_ERROR; - goto err; - } - } - else - s->tlsext_status_expected = 0; - #ifdef TLSEXT_TYPE_opaque_prf_input { /* This sort of belongs into ssl_prepare_serverhello_tlsext(), * but we might be sending an alert in response to the client hello, - * so this has to happen here in ssl_check_clienthello_tlsext(). */ + * so this has to happen here in + * ssl_check_clienthello_tlsext_early(). */ int r = 1; @@ -1869,8 +1959,8 @@ int ssl_check_clienthello_tlsext(SSL *s) } } -#endif err: +#endif switch (ret) { case SSL_TLSEXT_ERR_ALERT_FATAL: @@ -1888,6 +1978,71 @@ int ssl_check_clienthello_tlsext(SSL *s) } } +int ssl_check_clienthello_tlsext_late(SSL *s) + { + int ret = SSL_TLSEXT_ERR_OK; + int al; + + /* If status request then ask callback what to do. + * Note: this must be called after servername callbacks in case + * the certificate has changed, and must be called after the cipher + * has been chosen because this may influence which certificate is sent + */ + if ((s->tlsext_status_type != -1) && s->ctx && s->ctx->tlsext_status_cb) + { + int r; + CERT_PKEY *certpkey; + certpkey = ssl_get_server_send_pkey(s); + /* If no certificate can't return certificate status */ + if (certpkey == NULL) + { + s->tlsext_status_expected = 0; + return 1; + } + /* Set current certificate to one we will use so + * SSL_get_certificate et al can pick it up. + */ + s->cert->key = certpkey; + r = s->ctx->tlsext_status_cb(s, s->ctx->tlsext_status_arg); + switch (r) + { + /* We don't want to send a status request response */ + case SSL_TLSEXT_ERR_NOACK: + s->tlsext_status_expected = 0; + break; + /* status request response should be sent */ + case SSL_TLSEXT_ERR_OK: + if (s->tlsext_ocsp_resp) + s->tlsext_status_expected = 1; + else + s->tlsext_status_expected = 0; + break; + /* something bad happened */ + case SSL_TLSEXT_ERR_ALERT_FATAL: + ret = SSL_TLSEXT_ERR_ALERT_FATAL; + al = SSL_AD_INTERNAL_ERROR; + goto err; + } + } + else + s->tlsext_status_expected = 0; + + err: + switch (ret) + { + case SSL_TLSEXT_ERR_ALERT_FATAL: + ssl3_send_alert(s,SSL3_AL_FATAL,al); + return -1; + + case SSL_TLSEXT_ERR_ALERT_WARNING: + ssl3_send_alert(s,SSL3_AL_WARNING,al); + return 1; + + default: + return 1; + } + } + int ssl_check_serverhello_tlsext(SSL *s) { int ret=SSL_TLSEXT_ERR_NOACK; @@ -2189,7 +2344,7 @@ static int tls_decrypt_ticket(SSL *s, const unsigned char *etick, int eticklen, HMAC_Update(&hctx, etick, eticklen); HMAC_Final(&hctx, tick_hmac, NULL); HMAC_CTX_cleanup(&hctx); - if (memcmp(tick_hmac, etick + eticklen, mlen)) + if (CRYPTO_memcmp(tick_hmac, etick + eticklen, mlen)) return 2; /* Attempt to decrypt session data */ /* Move p after IV to start of encrypted ticket, update length */ @@ -2319,14 +2474,6 @@ const EVP_MD *tls12_get_hash(unsigned char hash_alg) { switch(hash_alg) { -#ifndef OPENSSL_NO_MD5 - case TLSEXT_hash_md5: -#ifdef OPENSSL_FIPS - if (FIPS_mode()) - return NULL; -#endif - return EVP_md5(); -#endif #ifndef OPENSSL_NO_SHA case TLSEXT_hash_sha1: return EVP_sha1(); @@ -2414,7 +2561,7 @@ int tls1_process_sigalgs(SSL *s, const unsigned char *data, int dsize) */ #ifndef OPENSSL_NO_DSA if (!c->pkeys[SSL_PKEY_DSA_SIGN].digest) - c->pkeys[SSL_PKEY_DSA_SIGN].digest = EVP_dss1(); + c->pkeys[SSL_PKEY_DSA_SIGN].digest = EVP_sha1(); #endif #ifndef OPENSSL_NO_RSA if (!c->pkeys[SSL_PKEY_RSA_SIGN].digest) @@ -2425,7 +2572,7 @@ int tls1_process_sigalgs(SSL *s, const unsigned char *data, int dsize) #endif #ifndef OPENSSL_NO_ECDSA if (!c->pkeys[SSL_PKEY_ECC].digest) - c->pkeys[SSL_PKEY_ECC].digest = EVP_ecdsa(); + c->pkeys[SSL_PKEY_ECC].digest = EVP_sha1(); #endif return 1; } @@ -2441,16 +2588,20 @@ tls1_process_heartbeat(SSL *s) unsigned int payload; unsigned int padding = 16; /* Use minimum padding */ - /* Read type and payload length first */ - hbtype = *p++; - n2s(p, payload); - pl = p; - if (s->msg_callback) s->msg_callback(0, s->version, TLS1_RT_HEARTBEAT, &s->s3->rrec.data[0], s->s3->rrec.length, s, s->msg_callback_arg); + /* Read type and payload length first */ + if (1 + 2 + 16 > s->s3->rrec.length) + return 0; /* silently discard */ + hbtype = *p++; + n2s(p, payload); + if (1 + 2 + payload + 16 > s->s3->rrec.length) + return 0; /* silently discard per RFC 6520 sec. 4 */ + pl = p; + if (hbtype == TLS1_HB_REQUEST) { unsigned char *buffer, *bp; diff --git a/src/lib/libssl/test/cms-test.pl b/src/lib/libssl/test/cms-test.pl index c938bcf00d..dfef799be2 100644 --- a/src/lib/libssl/test/cms-test.pl +++ b/src/lib/libssl/test/cms-test.pl @@ -415,8 +415,10 @@ sub run_smime_tests { } sub cmp_files { + use FileHandle; my ( $f1, $f2 ) = @_; - my ( $fp1, $fp2 ); + my $fp1 = FileHandle->new(); + my $fp2 = FileHandle->new(); my ( $rd1, $rd2 ); diff --git a/src/lib/libssl/test/testssl b/src/lib/libssl/test/testssl index 5ae4dc8720..4e8542b556 100644 --- a/src/lib/libssl/test/testssl +++ b/src/lib/libssl/test/testssl @@ -119,6 +119,23 @@ $ssltest -bio_pair -server_auth -client_auth $CA $extra || exit 1 echo test sslv2/sslv3 with both client and server authentication via BIO pair and app verify $ssltest -bio_pair -server_auth -client_auth -app_verify $CA $extra || exit 1 +echo "Testing ciphersuites" +for protocol in TLSv1.2 SSLv3; do + echo "Testing ciphersuites for $protocol" + for cipher in `../util/shlib_wrap.sh ../apps/openssl ciphers "RSA+$protocol" | tr ':' ' '`; do + echo "Testing $cipher" + prot="" + if [ $protocol = "SSLv3" ] ; then + prot="-ssl3" + fi + $ssltest -cipher $cipher $prot + if [ $? -ne 0 ] ; then + echo "Failed $cipher" + exit 1 + fi + done +done + ############################################################################# if ../util/shlib_wrap.sh ../apps/openssl no-dh; then diff --git a/src/lib/libssl/tls1.h b/src/lib/libssl/tls1.h index c39c267f0b..c992091e30 100644 --- a/src/lib/libssl/tls1.h +++ b/src/lib/libssl/tls1.h @@ -230,6 +230,12 @@ extern "C" { /* ExtensionType value from RFC5620 */ #define TLSEXT_TYPE_heartbeat 15 +/* ExtensionType value for TLS padding extension. + * http://www.iana.org/assignments/tls-extensiontype-values/tls-extensiontype-values.xhtml + * http://tools.ietf.org/html/draft-agl-tls-padding-03 + */ +#define TLSEXT_TYPE_padding 21 + /* ExtensionType value from RFC4507 */ #define TLSEXT_TYPE_session_ticket 35 -- cgit v1.2.3-55-g6feb