static void torture_algorithms_zlib(void **state) {
ssh_session session = *state;
int rc;
rc = ssh_options_set(session,SSH_OPTIONS_HOST,"localhost");
assert_true(rc == SSH_OK);
rc = ssh_options_set(session, SSH_OPTIONS_COMPRESSION_C_S, "zlib");
assert_true(rc == SSH_OK);
rc = ssh_options_set(session, SSH_OPTIONS_COMPRESSION_S_C, "zlib");
assert_true(rc == SSH_OK);
rc = ssh_connect(session);
if (ssh_get_openssh_version(session)) {
assert_false(rc == SSH_OK);
} else {
assert_true(rc == SSH_OK);
rc = ssh_userauth_none(session, NULL);
if (rc != SSH_OK) {
rc = ssh_get_error_code(session);
assert_true(rc == SSH_REQUEST_DENIED);
}
}
ssh_disconnect(session);
}
static void torture_auth_agent_nonblocking(void **state) {
struct torture_state *s = *state;
ssh_session session = s->ssh.session;
int rc;
if (!ssh_agent_is_running(session)){
print_message("*** Agent not running. Test ignored\n");
return;
}
rc = ssh_options_set(session, SSH_OPTIONS_USER, TORTURE_SSH_USER_ALICE);
assert_int_equal(rc, SSH_OK);
rc = ssh_connect(session);
assert_int_equal(rc, SSH_OK);
rc = ssh_userauth_none(session,NULL);
/* This request should return a SSH_REQUEST_DENIED error */
if (rc == SSH_ERROR) {
assert_true(ssh_get_error_code(session) == SSH_REQUEST_DENIED);
}
rc = ssh_userauth_list(session, NULL);
assert_true(rc & SSH_AUTH_METHOD_PUBLICKEY);
ssh_set_blocking(session,0);
do {
rc = ssh_userauth_agent(session, NULL);
} while (rc == SSH_AUTH_AGAIN);
assert_int_equal(rc, SSH_AUTH_SUCCESS);
}
SSH_SESSION *connect_host(const char *hostname){
SSH_SESSION *session;
SSH_OPTIONS *options;
int auth=0;
int state;
options=ssh_options_new();
ssh_options_set_host(options,hostname);
session=ssh_new();
ssh_set_options(session,options);
if(ssh_connect(session)){
fprintf(stderr,"Connection failed : %s\n",ssh_get_error(session));
ssh_disconnect(session);
return NULL;
}
state = ssh_session_is_known_server(session);
switch(state){
case SSH_SERVER_KNOWN_OK:
break; /* ok */
case SSH_SERVER_KNOWN_CHANGED:
fprintf(stderr,"Host key for server changed : server's one is now :\n");
fprintf(stderr,"For security reason, connection will be stopped\n");
ssh_disconnect(session);
ssh_finalize();
return NULL;
case SSH_SERVER_FOUND_OTHER:
fprintf(stderr,"The host key for this server was not found but an other type of key exists.\n");
fprintf(stderr,"An attacker might change the default server key to confuse your client"
"into thinking the key does not exist\n"
"We advise you to rerun the client with -d or -r for more safety.\n");
ssh_disconnect(session);
ssh_finalize();
return NULL;
case SSH_SERVER_NOT_KNOWN:
fprintf(stderr,"The server is unknown. Leaving now");
ssh_disconnect(session);
return NULL;
case SSH_SERVER_ERROR:
fprintf(stderr,"%s",ssh_get_error(session));
ssh_disconnect(session);
return NULL;
}
ssh_userauth_none(session, NULL);
auth=ssh_userauth_autopubkey(session, NULL);
if(auth==SSH_AUTH_ERROR){
fprintf(stderr,"Authenticating with pubkey: %s\n",ssh_get_error(session));
ssh_disconnect(session);
return NULL;
}
if(auth!=SSH_AUTH_SUCCESS){
fprintf(stderr,"Authentication failed: %s\n",ssh_get_error(session));
ssh_disconnect(session);
return NULL;
}
ssh_log(session, SSH_LOG_FUNCTIONS, "Authentication success");
return session;
}
static void test_algorithm(ssh_session session, const char *algo, const char *hmac) {
int rc;
rc = ssh_options_set(session, SSH_OPTIONS_CIPHERS_C_S, algo);
assert_int_equal(rc, SSH_OK);
rc = ssh_options_set(session, SSH_OPTIONS_CIPHERS_S_C, algo);
assert_int_equal(rc, SSH_OK);
rc = ssh_options_set(session, SSH_OPTIONS_HMAC_C_S, hmac);
assert_int_equal(rc, SSH_OK);
rc = ssh_options_set(session, SSH_OPTIONS_HMAC_S_C, hmac);
assert_int_equal(rc, SSH_OK);
rc = ssh_connect(session);
assert_int_equal(rc, SSH_OK);
rc = ssh_userauth_none(session, NULL);
if (rc != SSH_OK) {
rc = ssh_get_error_code(session);
assert_int_equal(rc, SSH_REQUEST_DENIED);
}
ssh_disconnect(session);
}
static void torture_auth_autopubkey_nonblocking(void **state) {
ssh_session session = *state;
char *user = getenv("TORTURE_USER");
int rc;
if (user == NULL) {
print_message("*** Please set the environment variable TORTURE_USER"
" to enable this test!!\n");
return;
}
rc = ssh_options_set(session, SSH_OPTIONS_USER, user);
assert_true(rc == SSH_OK);
rc = ssh_connect(session);
assert_true(rc == SSH_OK);
ssh_set_blocking(session,0);
do {
rc = ssh_userauth_none(session, NULL);
} while (rc == SSH_AUTH_AGAIN);
/* This request should return a SSH_REQUEST_DENIED error */
if (rc == SSH_ERROR) {
assert_true(ssh_get_error_code(session) == SSH_REQUEST_DENIED);
}
rc = ssh_userauth_list(session, NULL);
assert_true(rc & SSH_AUTH_METHOD_PUBLICKEY);
do {
rc = ssh_userauth_publickey_auto(session, NULL, NULL);
} while (rc == SSH_AUTH_AGAIN);
assert_true(rc == SSH_AUTH_SUCCESS);
}
static void torture_auth_kbdint(void **state) {
struct torture_state *s = *state;
ssh_session session = s->ssh.session;
int rc;
rc = ssh_options_set(session, SSH_OPTIONS_USER, TORTURE_SSH_USER_BOB);
assert_int_equal(rc, SSH_OK);
rc = ssh_connect(session);
assert_int_equal(rc, SSH_OK);
rc = ssh_userauth_none(session,NULL);
/* This request should return a SSH_REQUEST_DENIED error */
if (rc == SSH_ERROR) {
assert_true(ssh_get_error_code(session) == SSH_REQUEST_DENIED);
}
rc = ssh_userauth_list(session, NULL);
assert_true(rc & SSH_AUTH_METHOD_INTERACTIVE);
rc = ssh_userauth_kbdint(session, NULL, NULL);
assert_int_equal(rc, SSH_AUTH_INFO);
assert_int_equal(ssh_userauth_kbdint_getnprompts(session), 1);
rc = ssh_userauth_kbdint_setanswer(session, 0, TORTURE_SSH_USER_BOB_PASSWORD);
assert_false(rc < 0);
rc = ssh_userauth_kbdint(session, NULL, NULL);
/* Sometimes, SSH server send an empty query at the end of exchange */
if(rc == SSH_AUTH_INFO) {
assert_int_equal(ssh_userauth_kbdint_getnprompts(session), 0);
rc = ssh_userauth_kbdint(session, NULL, NULL);
}
assert_int_equal(rc, SSH_AUTH_SUCCESS);
}
static void torture_auth_password(void **state) {
ssh_session session = *state;
char *user = getenv("TORTURE_USER");
char *password = getenv("TORTURE_PASSWORD");
int rc;
if (user == NULL) {
print_message("*** Please set the environment variable TORTURE_USER"
" to enable this test!!\n");
return;
}
if (password == NULL) {
print_message("*** Please set the environment variable "
"TORTURE_PASSWORD to enable this test!!\n");
return;
}
rc = ssh_options_set(session, SSH_OPTIONS_USER, user);
assert_true(rc == SSH_OK);
rc = ssh_connect(session);
assert_true(rc == SSH_OK);
rc = ssh_userauth_none(session, NULL);
/* This request should return a SSH_REQUEST_DENIED error */
if (rc == SSH_AUTH_ERROR) {
assert_true(ssh_get_error_code(session) == SSH_REQUEST_DENIED);
}
rc = ssh_userauth_list(session, NULL);
assert_true(rc & SSH_AUTH_METHOD_PASSWORD);
rc = ssh_userauth_password(session, NULL, password);
assert_true(rc == SSH_AUTH_SUCCESS);
}
static void torture_auth_agent(void **state) {
ssh_session session = *state;
char *user = getenv("TORTURE_USER");
int rc;
if (user == NULL) {
print_message("*** Please set the environment variable TORTURE_USER"
" to enable this test!!\n");
return;
}
if (!agent_is_running(session)){
print_message("*** Agent not running. Test ignored");
return;
}
rc = ssh_options_set(session, SSH_OPTIONS_USER, user);
assert_true(rc == SSH_OK);
rc = ssh_connect(session);
assert_true(rc == SSH_OK);
rc = ssh_userauth_none(session,NULL);
/* This request should return a SSH_REQUEST_DENIED error */
if (rc == SSH_ERROR) {
assert_true(ssh_get_error_code(session) == SSH_REQUEST_DENIED);
}
rc = ssh_userauth_list(session, NULL);
assert_true(rc & SSH_AUTH_METHOD_PUBLICKEY);
rc = ssh_userauth_agent(session, NULL);
assert_true(rc == SSH_AUTH_SUCCESS);
}
static int client(ssh_session session){
int auth=0;
char *banner;
int state;
if (ssh_options_set(session, SSH_OPTIONS_HOST ,host) < 0)
return -1;
ssh_options_parse_config(session, NULL);
if(ssh_connect(session)){
fprintf(stderr,"Connection failed : %s\n",ssh_get_error(session));
return -1;
}
state=verify_knownhost(session);
if (state != 0)
return -1;
ssh_userauth_none(session, NULL);
banner=ssh_get_issue_banner(session);
if(banner){
printf("%s\n",banner);
free(banner);
}
auth=authenticate_console(session);
if(auth != SSH_AUTH_SUCCESS){
return -1;
}
forwarding(session);
return 0;
}
static void torture_auth_password_nonblocking(void **state) {
struct torture_state *s = *state;
ssh_session session = s->ssh.session;
int rc;
rc = ssh_options_set(session, SSH_OPTIONS_USER, TORTURE_SSH_USER_BOB);
assert_int_equal(rc, SSH_OK);
rc = ssh_connect(session);
assert_int_equal(rc, SSH_OK);
ssh_set_blocking(session,0);
do {
rc = ssh_userauth_none(session, NULL);
} while (rc == SSH_AUTH_AGAIN);
/* This request should return a SSH_REQUEST_DENIED error */
if (rc == SSH_AUTH_ERROR) {
assert_true(ssh_get_error_code(session) == SSH_REQUEST_DENIED);
}
rc = ssh_userauth_list(session, NULL);
assert_true(rc & SSH_AUTH_METHOD_PASSWORD);
do {
rc = ssh_userauth_password(session, NULL, TORTURE_SSH_USER_BOB_PASSWORD);
} while(rc==SSH_AUTH_AGAIN);
assert_int_equal(rc, SSH_AUTH_SUCCESS);
}
static int test_several_auth_methods(ssh_session session, url_t* urlp)
{
int rc = ssh_userauth_none(session, NULL);
/* if (rc != SSH_AUTH_SUCCESS) {
return rc;
} */
int method = ssh_userauth_list(session, NULL);
if (method & SSH_AUTH_METHOD_NONE)
{
rc = authenticate_none(session);
if (rc == SSH_AUTH_SUCCESS) return rc;
}
if (method & SSH_AUTH_METHOD_PUBLICKEY)
{
rc = authenticate_pubkey(session);
if (rc == SSH_AUTH_SUCCESS) return rc;
}
if (method & SSH_AUTH_METHOD_INTERACTIVE)
{
rc = authenticate_kbdint(session);
if (rc == SSH_AUTH_SUCCESS) return rc;
}
if (method & SSH_AUTH_METHOD_PASSWORD)
{
rc = authenticate_password(session, urlp);
if (rc == SSH_AUTH_SUCCESS) return rc;
}
return SSH_AUTH_ERROR;
}
gboolean
remmina_ssh_init_session (RemminaSSH *ssh)
{
gint verbosity;
ssh->callback = g_new0 (struct ssh_callbacks_struct, 1);
ssh->callback->userdata = ssh;
/* Init & startup the SSH session */
ssh->session = ssh_new ();
ssh_options_set (ssh->session, SSH_OPTIONS_HOST, ssh->server);
ssh_options_set (ssh->session, SSH_OPTIONS_PORT, &ssh->port);
ssh_options_set (ssh->session, SSH_OPTIONS_USER, ssh->user);
if (remmina_log_running ())
{
verbosity = SSH_LOG_RARE;
ssh_options_set (ssh->session, SSH_OPTIONS_LOG_VERBOSITY, &verbosity);
ssh->callback->log_function = remmina_ssh_log_callback;
}
ssh_callbacks_init (ssh->callback);
ssh_set_callbacks(ssh->session, ssh->callback);
if (ssh_connect (ssh->session))
{
remmina_ssh_set_error (ssh, _("Failed to startup SSH session: %s"));
return FALSE;
}
/* Try the "none" authentication */
if (ssh_userauth_none (ssh->session, NULL) == SSH_AUTH_SUCCESS)
{
ssh->authenticated = TRUE;
}
return TRUE;
}
static void torture_auth_none_nonblocking(void **state) {
struct torture_state *s = *state;
ssh_session session = s->ssh.session;
int rc;
rc = ssh_options_set(session, SSH_OPTIONS_USER, TORTURE_SSH_USER_ALICE);
assert_int_equal(rc, SSH_OK);
rc = ssh_connect(session);
assert_int_equal(rc, SSH_OK);
/* This request should return a SSH_REQUEST_DENIED error */
if (rc == SSH_ERROR) {
assert_int_equal(ssh_get_error_code(session), SSH_REQUEST_DENIED);
}
ssh_set_blocking(session,0);
do {
rc = ssh_userauth_none(session,NULL);
} while (rc == SSH_AUTH_AGAIN);
assert_int_equal(rc, SSH_AUTH_DENIED);
assert_int_equal(ssh_get_error_code(session), SSH_REQUEST_DENIED);
}
static void torture_auth_kbdint_nonblocking(void **state) {
ssh_session session = *state;
char *user = getenv("TORTURE_USER");
char *password = getenv("TORTURE_PASSWORD");
int rc;
if (user == NULL) {
print_message("*** Please set the environment variable TORTURE_USER"
" to enable this test!!\n");
return;
}
if (password == NULL) {
print_message("*** Please set the environment variable "
"TORTURE_PASSWORD to enable this test!!\n");
return;
}
rc = ssh_options_set(session, SSH_OPTIONS_USER, user);
assert_true(rc == SSH_OK);
rc = ssh_connect(session);
assert_true(rc == SSH_OK);
ssh_set_blocking(session,0);
do {
rc = ssh_userauth_none(session, NULL);
} while (rc == SSH_AUTH_AGAIN);
/* This request should return a SSH_REQUEST_DENIED error */
if (rc == SSH_ERROR) {
assert_true(ssh_get_error_code(session) == SSH_REQUEST_DENIED);
}
rc = ssh_userauth_list(session, NULL);
assert_true(rc & SSH_AUTH_METHOD_INTERACTIVE);
do {
rc = ssh_userauth_kbdint(session, NULL, NULL);
} while (rc == SSH_AUTH_AGAIN);
assert_true(rc == SSH_AUTH_INFO);
assert_int_equal(ssh_userauth_kbdint_getnprompts(session), 1);
do {
rc = ssh_userauth_kbdint_setanswer(session, 0, password);
} while (rc == SSH_AUTH_AGAIN);
assert_false(rc < 0);
do {
rc = ssh_userauth_kbdint(session, NULL, NULL);
} while (rc == SSH_AUTH_AGAIN);
/* Sometimes, SSH server send an empty query at the end of exchange */
if(rc == SSH_AUTH_INFO) {
assert_int_equal(ssh_userauth_kbdint_getnprompts(session), 0);
do {
rc = ssh_userauth_kbdint(session, NULL, NULL);
} while (rc == SSH_AUTH_AGAIN);
}
assert_true(rc == SSH_AUTH_SUCCESS);
}
int authenticate_console(ssh_session session, char* pwd){
int rc;
int method;
char password[128] = {0};
char *banner;
// Try to authenticate
rc = ssh_userauth_none(session, NULL);
if (rc == SSH_AUTH_ERROR) {
error(session);
return rc;
}
method = ssh_auth_list(session);
while (rc != SSH_AUTH_SUCCESS) {
// Try to authenticate with public key first
if (method & SSH_AUTH_METHOD_PUBLICKEY) {
rc = ssh_userauth_autopubkey(session, NULL);
if (rc == SSH_AUTH_ERROR) {
error(session);
return rc;
} else if (rc == SSH_AUTH_SUCCESS) {
break;
}
}
/*
// Try to authenticate with keyboard interactive";
if (method & SSH_AUTH_METHOD_INTERACTIVE) {
rc = authenticate_kbdint(session, NULL);
if (rc == SSH_AUTH_ERROR) {
error(session);
return rc;
} else if (rc == SSH_AUTH_SUCCESS) {
break;
}
}
if (ssh_getpass("Password: "******"%s\n",banner);
free(banner);
}
return rc;
}
//
// dirty workaround here: miscptr is the ptr to the logins, and the first one is used
// to test if password authentication is enabled!!
//
int32_t service_ssh_init(char *ip, int32_t sp, unsigned char options, char *miscptr, FILE * fp, int32_t port, char *hostname) {
// called before the childrens are forked off, so this is the function
// which should be filled if initial connections and service setup has to be
// performed once only.
//
// fill if needed.
//
// return codes:
// 0 all OK
// 1 skip target without generating an error
// 2 skip target because of protocol problems
// 3 skip target because its unreachable
#ifdef LIBSSH
int32_t rc, method;
ssh_session session = ssh_new();
if (verbose || debug)
printf("[INFO] Testing if password authentication is supported by ssh://%s@%s:%d\n", miscptr == NULL ? "hydra" : miscptr, hydra_address2string_beautiful(ip), port);
ssh_options_set(session, SSH_OPTIONS_PORT, &port);
ssh_options_set(session, SSH_OPTIONS_HOST, hydra_address2string(ip));
if (miscptr == NULL)
ssh_options_set(session, SSH_OPTIONS_USER, "hydra");
else
ssh_options_set(session, SSH_OPTIONS_USER, miscptr);
ssh_options_set(session, SSH_OPTIONS_TIMEOUT, &hydra_options.waittime);
ssh_options_set(session, SSH_OPTIONS_COMPRESSION_C_S, "none");
ssh_options_set(session, SSH_OPTIONS_COMPRESSION_S_C, "none");
if (ssh_connect(session) != 0) {
fprintf(stderr, "[ERROR] could not connect to ssh://%s:%d - %s\n", hydra_address2string_beautiful(ip), port, ssh_get_error(session));
return 2;
}
rc = ssh_userauth_none(session, NULL);
method = ssh_userauth_list(session, NULL);
ssh_disconnect(session);
ssh_finalize();
ssh_free(session);
if (debug) printf("[DEBUG] SSH method check: %08x\n", method);
if ((method & SSH_AUTH_METHOD_INTERACTIVE) || (method & SSH_AUTH_METHOD_PASSWORD)) {
if (verbose || debug)
printf("[INFO] Successful, password authentication is supported by ssh://%s:%d\n", hydra_address2string_beautiful(ip), port);
return 0;
} else if (method == 0) {
if (verbose || debug)
fprintf(stderr, "[WARNING] invalid SSH method reply from ssh://%s:%d, continuing anyway ... (check for empty password!)\n", hydra_address2string_beautiful(ip), port);
return 0;
}
fprintf(stderr, "[ERROR] target ssh://%s:%d/ does not support password authentication (method reply %d).\n", hydra_address2string_beautiful(ip), port, method);
return 1;
#else
return 0;
#endif
}
int authenticate_console(ssh_session session)
{
int rc;
int method;
// Try to authenticate
rc = ssh_userauth_none(session, NULL);
if (rc == SSH_AUTH_ERROR)
{
error(session);
return rc;
}
method = ssh_userauth_list(session,NULL);
while (rc != SSH_AUTH_SUCCESS)
{
// Try to authenticate with public key first
rc = ssh_userauth_autopubkey(session, NULL);
if (rc == SSH_AUTH_ERROR)
{
error(session);
return rc;
} else if (rc == SSH_AUTH_SUCCESS)
{
break;
}
rc=authenticate_kbdint(session,pass_word);
if (rc == SSH_AUTH_ERROR)
{
error(session);
return rc;
} else if (rc == SSH_AUTH_SUCCESS)
{
break;
}
rc = ssh_userauth_password(session, NULL, pass_word);
if (rc == SSH_AUTH_ERROR)
{
error(session);
return rc;
} else if (rc == SSH_AUTH_SUCCESS)
{
break;
} else if(rc == SSH_AUTH_DENIED)
{
} else if(rc == SSH_AUTH_PARTIAL)
{
} else if(rc == SSH_AUTH_INFO)
{
} else if(rc == SSH_AUTH_AGAIN)
{
}
}
return rc;
}
int ssh_userauth_list(ssh_session session, const char *username) {
if (session == NULL || username == NULL) {
return SSH_AUTH_ERROR;
}
if (session->auth_methods == 0) {
ssh_userauth_none(session, username);
}
return ssh_auth_list(session);
}
static int client(ssh_session_t *session)
{
int auth=0;
char *banner;
int state;
if (user)
{
if (ssh_options_set(session, SSH_OPTIONS_USER, user) < 0)
{
return -1;
}
}
if (ssh_options_set(session, SSH_OPTIONS_HOST ,host) < 0)
{
return -1;
}
if (proxycommand != NULL)
{
if(ssh_options_set(session, SSH_OPTIONS_PROXYCOMMAND, proxycommand))
{
return -1;
}
}
ssh_options_parse_config(session, NULL);
if(ssh_connect(session))
{
fprintf(stderr,"Connection failed : %s\n",ssh_get_error(session));
return -1;
}
state = verify_knownhost(session);
if (state != 0)
{
return -1;
}
ssh_userauth_none(session, NULL);
banner = ssh_get_issue_banner(session);
if(banner)
{
printf("%s\n", banner);
free(banner);
}
auth = authenticate_console(session);
if(auth != SSH_AUTH_SUCCESS)
{
return -1;
}
if(!cmds[0]) {
shell(session);
} else {
batch_shell(session);
}
return 0;
}
// TODO: remove this obsolete
static int client(ssh_session session)
{
int auth=0;
int state;
if (user)
if (ssh_options_set(session, SSH_OPTIONS_USER, user) < 0)
return -1;
if (ssh_options_set(session, SSH_OPTIONS_HOST ,host) < 0)
return -1;
if (proxycommand != NULL)
{
if(ssh_options_set(session, SSH_OPTIONS_PROXYCOMMAND, proxycommand))
return -1;
}
ssh_options_parse_config(session, NULL);
if(ssh_connect(session))
{
fprintf(stderr,"Connection failed : %s\n",ssh_get_error(session));
return -1;
}
state=verify_knownhost(session);
if (state != 0)
return -1;
ssh_userauth_none(session, NULL);
auth=authenticate_console(session);
if(auth != SSH_AUTH_SUCCESS)
{
return -1;
}
shell(session);
return 0;
}
static void torture_channel_read_error(void **state) {
ssh_session session = *state;
char *user = getenv("TORTURE_USER");
ssh_channel channel;
int rc;
int i;
if (user == NULL) {
print_message("*** Please set the environment variable TORTURE_USER"
" to enable this test!!\n");
return;
}
rc = ssh_options_set(session, SSH_OPTIONS_USER, user);
assert_true(rc == SSH_OK);
rc = ssh_connect(session);
assert_true(rc == SSH_OK);
rc = ssh_userauth_none(session,NULL);
/* This request should return a SSH_REQUEST_DENIED error */
if (rc == SSH_ERROR) {
assert_true(ssh_get_error_code(session) == SSH_REQUEST_DENIED);
}
assert_true(ssh_auth_list(session) & SSH_AUTH_METHOD_PUBLICKEY);
rc = ssh_userauth_autopubkey(session, NULL);
assert_true(rc == SSH_AUTH_SUCCESS);
channel = ssh_channel_new(session);
assert_true(channel != NULL);
rc = ssh_channel_open_session(channel);
assert_true(rc == SSH_OK);
rc = ssh_channel_request_exec(channel, "hexdump -C /dev/urandom");
assert_true(rc == SSH_OK);
/* send crap and for server to send us a disconnect */
rc = write(ssh_get_fd(session),"AAAA", 4);
assert_int_equal(rc, 4);
for (i=0;i<20;++i){
rc = ssh_channel_read(channel,buffer,sizeof(buffer),0);
if (rc == SSH_ERROR)
break;
}
assert_true(rc == SSH_ERROR);
}
static void torture_auth_pubkey_types_ed25519_nonblocking(void **state)
{
struct torture_state *s = *state;
ssh_session session = s->ssh.session;
int rc;
rc = ssh_options_set(session, SSH_OPTIONS_USER, TORTURE_SSH_USER_ALICE);
assert_ssh_return_code(session, rc);
rc = ssh_connect(session);
assert_ssh_return_code(session, rc);
ssh_set_blocking(session, 0);
do {
rc = ssh_userauth_none(session, NULL);
} while (rc == SSH_AUTH_AGAIN);
/* This request should return a SSH_REQUEST_DENIED error */
if (rc == SSH_ERROR) {
assert_int_equal(ssh_get_error_code(session), SSH_REQUEST_DENIED);
}
rc = ssh_userauth_list(session, NULL);
assert_true(rc & SSH_AUTH_METHOD_PUBLICKEY);
/* Enable only DSA keys -- authentication should fail */
rc = ssh_options_set(session, SSH_OPTIONS_PUBLICKEY_ACCEPTED_TYPES,
"ssh-dss");
assert_ssh_return_code(session, rc);
do {
rc = ssh_userauth_publickey_auto(session, NULL, NULL);
} while (rc == SSH_AUTH_AGAIN);
assert_int_equal(rc, SSH_AUTH_DENIED);
/* Verify we can use also ED25519 key to authenticate */
rc = ssh_options_set(session, SSH_OPTIONS_PUBLICKEY_ACCEPTED_TYPES,
"ssh-ed25519");
assert_ssh_return_code(session, rc);
do {
rc = ssh_userauth_publickey_auto(session, NULL, NULL);
} while (rc == SSH_AUTH_AGAIN);
assert_int_equal(rc, SSH_AUTH_SUCCESS);
}
static void torture_auth_pubkey_types_nonblocking(void **state)
{
struct torture_state *s = *state;
ssh_session session = s->ssh.session;
int rc;
rc = ssh_options_set(session, SSH_OPTIONS_USER, TORTURE_SSH_USER_ALICE);
assert_ssh_return_code(session, rc);
rc = ssh_connect(session);
assert_ssh_return_code(session, rc);
ssh_set_blocking(session, 0);
do {
rc = ssh_userauth_none(session, NULL);
} while (rc == SSH_AUTH_AGAIN);
/* This request should return a SSH_REQUEST_DENIED error */
if (rc == SSH_ERROR) {
assert_int_equal(ssh_get_error_code(session), SSH_REQUEST_DENIED);
}
rc = ssh_userauth_list(session, NULL);
assert_true(rc & SSH_AUTH_METHOD_PUBLICKEY);
/* Disable RSA key types for authentication */
rc = ssh_options_set(session, SSH_OPTIONS_PUBLICKEY_ACCEPTED_TYPES,
"ssh-dss");
assert_ssh_return_code(session, rc);
do {
rc = ssh_userauth_publickey_auto(session, NULL, NULL);
} while (rc == SSH_AUTH_AGAIN);
assert_int_equal(rc, SSH_AUTH_DENIED);
/* Now enable it and retry */
rc = ssh_options_set(session, SSH_OPTIONS_PUBLICKEY_ACCEPTED_TYPES,
"rsa-sha2-512,ssh-rsa");
assert_ssh_return_code(session, rc);
do {
rc = ssh_userauth_publickey_auto(session, NULL, NULL);
} while (rc == SSH_AUTH_AGAIN);
assert_int_equal(rc, SSH_AUTH_SUCCESS);
}
int service_ssh_init(char *ip, int sp, unsigned char options, char *miscptr, FILE * fp, int port) {
// called before the childrens are forked off, so this is the function
// which should be filled if initial connections and service setup has to be
// performed once only.
//
// fill if needed.
//
// return codes:
// 0 all OK
// 1 skip target without generating an error
// 2 skip target because of protocol problems
// 3 skip target because its unreachable
#ifdef LIBSSH
int rc, method;
ssh_session session = ssh_new();
if (verbose || debug)
printf("[INFO] Testing if password authentication is supported by ssh://%s:%d\n", hydra_address2string(ip), port);
ssh_options_set(session, SSH_OPTIONS_PORT, &port);
ssh_options_set(session, SSH_OPTIONS_HOST, hydra_address2string(ip));
ssh_options_set(session, SSH_OPTIONS_USER, "root");
ssh_options_set(session, SSH_OPTIONS_COMPRESSION_C_S, "none");
ssh_options_set(session, SSH_OPTIONS_COMPRESSION_S_C, "none");
if (ssh_connect(session) != 0) {
fprintf(stderr, "[ERROR] could not connect to ssh://%s:%d\n", hydra_address2string(ip), port);
return 2;
}
rc = ssh_userauth_none(session, NULL);
method = ssh_userauth_list(session, NULL);
ssh_disconnect(session);
ssh_finalize();
ssh_free(session);
if ((method & SSH_AUTH_METHOD_INTERACTIVE) || (method & SSH_AUTH_METHOD_PASSWORD)) {
if (verbose || debug)
printf("[INFO] Successful, password authentication is supported by ssh://%s:%d\n", hydra_address2string(ip), port);
return 0;
}
fprintf(stderr, "[ERROR] target ssh://%s:%d/ does not support password authentication.\n", hydra_address2string(ip), port);
return 1;
#else
return 0;
#endif
}
static void torture_algorithms_dh_group1(void **state) {
struct torture_state *s = *state;
ssh_session session = s->ssh.session;
int rc;
rc = ssh_options_set(session, SSH_OPTIONS_KEY_EXCHANGE, "diffie-hellman-group1-sha1");
assert_int_equal(rc, SSH_OK);
rc = ssh_connect(session);
assert_int_equal(rc, SSH_OK);
rc = ssh_userauth_none(session, NULL);
if (rc != SSH_OK) {
rc = ssh_get_error_code(session);
assert_int_equal(rc, SSH_REQUEST_DENIED);
}
ssh_disconnect(session);
}
void clSSH::Login()
{
int rc;
rc = ssh_userauth_none(m_session, NULL);
if(rc == SSH_AUTH_SUCCESS) { return; }
// Try the following 3 methods in order
// if non succeeded, this function will throw an exception
try {
LoginPublicKey();
} catch(clException& e) {
try {
LoginPassword();
} catch(clException& e2) {
LoginInteractiveKBD();
}
}
}
static void torture_algorithms_zlib_openssh(void **state) {
struct torture_state *s = *state;
ssh_session session = s->ssh.session;
int rc;
rc = ssh_options_set(session, SSH_OPTIONS_COMPRESSION_C_S, "*****@*****.**");
#ifdef WITH_ZLIB
assert_int_equal(rc, SSH_OK);
#else
assert_int_equal(rc, SSH_ERROR);
#endif
rc = ssh_options_set(session, SSH_OPTIONS_COMPRESSION_S_C, "*****@*****.**");
#ifdef WITH_ZLIB
assert_int_equal(rc, SSH_OK);
#else
assert_int_equal(rc, SSH_ERROR);
#endif
rc = ssh_connect(session);
#ifdef WITH_ZLIB
if (ssh_get_openssh_version(session)) {
assert_true(rc==SSH_OK);
rc = ssh_userauth_none(session, NULL);
if (rc != SSH_OK) {
rc = ssh_get_error_code(session);
assert_int_equal(rc, SSH_REQUEST_DENIED);
}
ssh_disconnect(session);
return;
}
assert_false(rc == SSH_OK);
#else
assert_int_equal(rc, SSH_OK);
#endif
ssh_disconnect(session);
}
static void test_algorithm(ssh_session session, const char *algo) {
int rc;
rc = ssh_options_set(session, SSH_OPTIONS_HOST, "localhost");
assert_true(rc == SSH_OK);
rc = ssh_options_set(session, SSH_OPTIONS_CIPHERS_C_S, algo);
assert_true(rc == SSH_OK);
rc = ssh_options_set(session, SSH_OPTIONS_CIPHERS_S_C, algo);
assert_true(rc == SSH_OK);
rc = ssh_connect(session);
assert_true(rc == SSH_OK);
rc = ssh_userauth_none(session, NULL);
if (rc != SSH_OK) {
rc = ssh_get_error_code(session);
assert_true(rc == SSH_REQUEST_DENIED);
}
ssh_disconnect(session);
}
static void torture_auth_autopubkey(void **state) {
struct torture_state *s = *state;
ssh_session session = s->ssh.session;
int rc;
/* Authenticate as alice with bob his pubkey */
rc = ssh_options_set(session, SSH_OPTIONS_USER, TORTURE_SSH_USER_ALICE);
assert_int_equal(rc, SSH_OK);
rc = ssh_connect(session);
assert_int_equal(rc, SSH_OK);
rc = ssh_userauth_none(session,NULL);
/* This request should return a SSH_REQUEST_DENIED error */
if (rc == SSH_ERROR) {
assert_true(ssh_get_error_code(session) == SSH_REQUEST_DENIED);
}
rc = ssh_userauth_list(session, NULL);
assert_true(rc & SSH_AUTH_METHOD_PUBLICKEY);
rc = ssh_userauth_publickey_auto(session, NULL, NULL);
assert_int_equal(rc, SSH_AUTH_SUCCESS);
}
static void torture_auth_pubkey_types_ecdsa(void **state)
{
struct torture_state *s = *state;
ssh_session session = s->ssh.session;
int rc;
rc = ssh_options_set(session, SSH_OPTIONS_USER, TORTURE_SSH_USER_ALICE);
assert_ssh_return_code(session, rc);
rc = ssh_connect(session);
assert_ssh_return_code(session, rc);
rc = ssh_userauth_none(session, NULL);
/* This request should return a SSH_REQUEST_DENIED error */
if (rc == SSH_ERROR) {
assert_int_equal(ssh_get_error_code(session), SSH_REQUEST_DENIED);
}
rc = ssh_userauth_list(session, NULL);
assert_true(rc & SSH_AUTH_METHOD_PUBLICKEY);
/* We have only the 256b key -- whitelisting only larger should fail */
rc = ssh_options_set(session, SSH_OPTIONS_PUBLICKEY_ACCEPTED_TYPES,
"ecdsa-sha2-nistp384");
assert_ssh_return_code(session, rc);
rc = ssh_userauth_publickey_auto(session, NULL, NULL);
assert_int_equal(rc, SSH_AUTH_DENIED);
/* Verify we can use also ECDSA keys with their various names */
rc = ssh_options_set(session, SSH_OPTIONS_PUBLICKEY_ACCEPTED_TYPES,
"ecdsa-sha2-nistp256");
assert_ssh_return_code(session, rc);
rc = ssh_userauth_publickey_auto(session, NULL, NULL);
assert_int_equal(rc, SSH_AUTH_SUCCESS);
}
