NTSTATUS rpccli_netlogon_sam_logon(struct rpc_pipe_client *cli,
TALLOC_CTX *mem_ctx,
uint32 logon_parameters,
const char *domain,
const char *username,
const char *password,
const char *workstation,
uint16_t validation_level,
int logon_type)
{
NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
NTSTATUS status;
struct netr_Authenticator clnt_creds;
struct netr_Authenticator ret_creds;
union netr_LogonLevel *logon;
union netr_Validation validation;
uint8_t authoritative;
fstring clnt_name_slash;
struct dcerpc_binding_handle *b = cli->binding_handle;
ZERO_STRUCT(ret_creds);
logon = talloc_zero(mem_ctx, union netr_LogonLevel);
if (!logon) {
return NT_STATUS_NO_MEMORY;
}
if (workstation) {
fstr_sprintf( clnt_name_slash, "\\\\%s", workstation );
} else {
fstr_sprintf( clnt_name_slash, "\\\\%s", lp_netbios_name() );
}
/* Initialise input parameters */
netlogon_creds_client_authenticator(cli->dc, &clnt_creds);
switch (logon_type) {
case NetlogonInteractiveInformation: {
struct netr_PasswordInfo *password_info;
struct samr_Password lmpassword;
struct samr_Password ntpassword;
password_info = talloc_zero(mem_ctx, struct netr_PasswordInfo);
if (!password_info) {
return NT_STATUS_NO_MEMORY;
}
nt_lm_owf_gen(password, ntpassword.hash, lmpassword.hash);
if (cli->dc->negotiate_flags & NETLOGON_NEG_SUPPORTS_AES) {
netlogon_creds_aes_encrypt(cli->dc, lmpassword.hash, 16);
netlogon_creds_aes_encrypt(cli->dc, ntpassword.hash, 16);
} else if (cli->dc->negotiate_flags & NETLOGON_NEG_ARCFOUR) {
netlogon_creds_arcfour_crypt(cli->dc, lmpassword.hash, 16);
netlogon_creds_arcfour_crypt(cli->dc, ntpassword.hash, 16);
} else {
netlogon_creds_des_encrypt(cli->dc, &lmpassword);
netlogon_creds_des_encrypt(cli->dc, &ntpassword);
}
password_info->identity_info.domain_name.string = domain;
password_info->identity_info.parameter_control = logon_parameters;
password_info->identity_info.logon_id_low = 0xdead;
password_info->identity_info.logon_id_high = 0xbeef;
password_info->identity_info.account_name.string = username;
password_info->identity_info.workstation.string = clnt_name_slash;
password_info->lmpassword = lmpassword;
password_info->ntpassword = ntpassword;
logon->password = password_info;
break;
}
case NetlogonNetworkInformation: {
struct netr_NetworkInfo *network_info;
uint8 chal[8];
unsigned char local_lm_response[24];
unsigned char local_nt_response[24];
struct netr_ChallengeResponse lm;
struct netr_ChallengeResponse nt;
ZERO_STRUCT(lm);
ZERO_STRUCT(nt);
network_info = talloc_zero(mem_ctx, struct netr_NetworkInfo);
if (!network_info) {
return NT_STATUS_NO_MEMORY;
}
generate_random_buffer(chal, 8);
SMBencrypt(password, chal, local_lm_response);
SMBNTencrypt(password, chal, local_nt_response);
lm.length = 24;
lm.data = local_lm_response;
nt.length = 24;
nt.data = local_nt_response;
network_info->identity_info.domain_name.string = domain;
network_info->identity_info.parameter_control = logon_parameters;
network_info->identity_info.logon_id_low = 0xdead;
network_info->identity_info.logon_id_high = 0xbeef;
network_info->identity_info.account_name.string = username;
network_info->identity_info.workstation.string = clnt_name_slash;
memcpy(network_info->challenge, chal, 8);
network_info->nt = nt;
network_info->lm = lm;
logon->network = network_info;
break;
}
default:
DEBUG(0, ("switch value %d not supported\n",
logon_type));
return NT_STATUS_INVALID_INFO_CLASS;
}
status = dcerpc_netr_LogonSamLogon(b, mem_ctx,
cli->srv_name_slash,
lp_netbios_name(),
&clnt_creds,
&ret_creds,
logon_type,
logon,
validation_level,
&validation,
&authoritative,
&result);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
/* Always check returned credentials */
if (!netlogon_creds_client_check(cli->dc, &ret_creds.cred)) {
DEBUG(0,("rpccli_netlogon_sam_logon: credentials chain check failed\n"));
return NT_STATUS_ACCESS_DENIED;
}
return result;
}
NTSTATUS rpccli_netlogon_sam_network_logon(struct rpc_pipe_client *cli,
TALLOC_CTX *mem_ctx,
uint32 logon_parameters,
const char *server,
const char *username,
const char *domain,
const char *workstation,
const uint8 chal[8],
uint16_t validation_level,
DATA_BLOB lm_response,
DATA_BLOB nt_response,
struct netr_SamInfo3 **info3)
{
NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
NTSTATUS status;
const char *workstation_name_slash;
const char *server_name_slash;
struct netr_Authenticator clnt_creds;
struct netr_Authenticator ret_creds;
union netr_LogonLevel *logon = NULL;
struct netr_NetworkInfo *network_info;
uint8_t authoritative;
union netr_Validation validation;
struct netr_ChallengeResponse lm;
struct netr_ChallengeResponse nt;
struct dcerpc_binding_handle *b = cli->binding_handle;
*info3 = NULL;
ZERO_STRUCT(ret_creds);
ZERO_STRUCT(lm);
ZERO_STRUCT(nt);
logon = talloc_zero(mem_ctx, union netr_LogonLevel);
if (!logon) {
return NT_STATUS_NO_MEMORY;
}
network_info = talloc_zero(mem_ctx, struct netr_NetworkInfo);
if (!network_info) {
return NT_STATUS_NO_MEMORY;
}
netlogon_creds_client_authenticator(cli->dc, &clnt_creds);
if (server[0] != '\\' && server[1] != '\\') {
server_name_slash = talloc_asprintf(mem_ctx, "\\\\%s", server);
} else {
server_name_slash = server;
}
if (workstation[0] != '\\' && workstation[1] != '\\') {
workstation_name_slash = talloc_asprintf(mem_ctx, "\\\\%s", workstation);
} else {
workstation_name_slash = workstation;
}
if (!workstation_name_slash || !server_name_slash) {
DEBUG(0, ("talloc_asprintf failed!\n"));
return NT_STATUS_NO_MEMORY;
}
/* Initialise input parameters */
lm.data = lm_response.data;
lm.length = lm_response.length;
nt.data = nt_response.data;
nt.length = nt_response.length;
network_info->identity_info.domain_name.string = domain;
network_info->identity_info.parameter_control = logon_parameters;
network_info->identity_info.logon_id_low = 0xdead;
network_info->identity_info.logon_id_high = 0xbeef;
network_info->identity_info.account_name.string = username;
network_info->identity_info.workstation.string = workstation_name_slash;
memcpy(network_info->challenge, chal, 8);
network_info->nt = nt;
network_info->lm = lm;
logon->network = network_info;
/* Marshall data and send request */
status = dcerpc_netr_LogonSamLogon(b, mem_ctx,
server_name_slash,
lp_netbios_name(),
&clnt_creds,
&ret_creds,
NetlogonNetworkInformation,
logon,
validation_level,
&validation,
&authoritative,
&result);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
/* Always check returned credentials. */
if (!netlogon_creds_client_check(cli->dc, &ret_creds.cred)) {
DEBUG(0,("rpccli_netlogon_sam_network_logon: credentials chain check failed\n"));
return NT_STATUS_ACCESS_DENIED;
}
if (!NT_STATUS_IS_OK(result)) {
return result;
}
netlogon_creds_decrypt_samlogon_validation(cli->dc, validation_level,
&validation);
result = map_validation_to_info3(mem_ctx, validation_level, &validation, info3);
if (!NT_STATUS_IS_OK(result)) {
return result;
}
return result;
}
static bool test_PACVerify(struct torture_context *tctx,
struct dcerpc_pipe *p,
struct cli_credentials *credentials)
{
NTSTATUS status;
struct netr_LogonSamLogon r;
union netr_LogonLevel logon;
union netr_Validation validation;
uint8_t authoritative;
struct netr_Authenticator return_authenticator;
struct netr_GenericInfo generic;
struct netr_Authenticator auth, auth2;
struct netlogon_creds_CredentialState *creds;
struct gensec_security *gensec_client_context;
struct gensec_security *gensec_server_context;
DATA_BLOB client_to_server, server_to_client, pac_wrapped, payload;
struct PAC_Validate pac_wrapped_struct;
enum ndr_err_code ndr_err;
struct auth_session_info *session_info;
char *tmp_dir;
TALLOC_CTX *tmp_ctx = talloc_new(tctx);
torture_assert(tctx, tmp_ctx != NULL, "talloc_new() failed");
if (!test_SetupCredentials2(p, tctx, NETLOGON_NEG_AUTH2_ADS_FLAGS,
credentials, SEC_CHAN_BDC,
&creds)) {
return false;
}
status = torture_temp_dir(tctx, "PACVerify", &tmp_dir);
torture_assert_ntstatus_ok(tctx, status, "torture_temp_dir failed");
status = gensec_client_start(tctx, &gensec_client_context, tctx->ev,
lp_gensec_settings(tctx, tctx->lp_ctx));
torture_assert_ntstatus_ok(tctx, status, "gensec_client_start (client) failed");
status = gensec_set_target_hostname(gensec_client_context, TEST_MACHINE_NAME);
status = gensec_set_credentials(gensec_client_context, cmdline_credentials);
torture_assert_ntstatus_ok(tctx, status, "gensec_set_credentials (client) failed");
status = gensec_start_mech_by_sasl_name(gensec_client_context, "GSSAPI");
torture_assert_ntstatus_ok(tctx, status, "gensec_start_mech_by_sasl_name (client) failed");
status = gensec_server_start(tctx, tctx->ev,
lp_gensec_settings(tctx, tctx->lp_ctx),
NULL, &gensec_server_context);
torture_assert_ntstatus_ok(tctx, status, "gensec_server_start (server) failed");
status = gensec_set_credentials(gensec_server_context, credentials);
torture_assert_ntstatus_ok(tctx, status, "gensec_set_credentials (server) failed");
status = gensec_start_mech_by_sasl_name(gensec_server_context, "GSSAPI");
torture_assert_ntstatus_ok(tctx, status, "gensec_start_mech_by_sasl_name (server) failed");
server_to_client = data_blob(NULL, 0);
do {
/* Do a client-server update dance */
status = gensec_update(gensec_client_context, tmp_ctx, server_to_client, &client_to_server);
if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
;
torture_assert_ntstatus_ok(tctx, status, "gensec_update (client) failed");
}
status = gensec_update(gensec_server_context, tmp_ctx, client_to_server, &server_to_client);
if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
;
torture_assert_ntstatus_ok(tctx, status, "gensec_update (server) failed");
}
if (NT_STATUS_IS_OK(status)) {
break;
}
} while (1);
/* Extract the PAC using Samba's code */
status = gensec_session_info(gensec_server_context, &session_info);
torture_assert_ntstatus_ok(tctx, status, "gensec_session_info failed");
pac_wrapped_struct.ChecksumLength = session_info->server_info->pac_srv_sig.signature.length;
pac_wrapped_struct.SignatureType = session_info->server_info->pac_kdc_sig.type;
pac_wrapped_struct.SignatureLength = session_info->server_info->pac_kdc_sig.signature.length;
pac_wrapped_struct.ChecksumAndSignature = payload
= data_blob_talloc(tmp_ctx, NULL,
pac_wrapped_struct.ChecksumLength
+ pac_wrapped_struct.SignatureLength);
memcpy(&payload.data[0],
session_info->server_info->pac_srv_sig.signature.data,
pac_wrapped_struct.ChecksumLength);
memcpy(&payload.data[pac_wrapped_struct.ChecksumLength],
session_info->server_info->pac_kdc_sig.signature.data,
pac_wrapped_struct.SignatureLength);
ndr_err = ndr_push_struct_blob(&pac_wrapped, tmp_ctx, lp_iconv_convenience(tctx->lp_ctx), &pac_wrapped_struct,
(ndr_push_flags_fn_t)ndr_push_PAC_Validate);
torture_assert(tctx, NDR_ERR_CODE_IS_SUCCESS(ndr_err), "ndr_push_struct_blob of PACValidate structure failed");
torture_assert(tctx, (creds->negotiate_flags & NETLOGON_NEG_ARCFOUR), "not willing to even try a PACValidate without RC4 encryption");
netlogon_creds_arcfour_crypt(creds, pac_wrapped.data, pac_wrapped.length);
generic.length = pac_wrapped.length;
generic.data = pac_wrapped.data;
/* Validate it over the netlogon pipe */
generic.identity_info.parameter_control = 0;
generic.identity_info.logon_id_high = 0;
generic.identity_info.logon_id_low = 0;
generic.identity_info.domain_name.string = session_info->server_info->domain_name;
generic.identity_info.account_name.string = session_info->server_info->account_name;
generic.identity_info.workstation.string = TEST_MACHINE_NAME;
generic.package_name.string = "Kerberos";
logon.generic = &generic;
ZERO_STRUCT(auth2);
netlogon_creds_client_authenticator(creds, &auth);
r.in.credential = &auth;
r.in.return_authenticator = &auth2;
r.in.logon = &logon;
r.in.logon_level = NetlogonGenericInformation;
r.in.server_name = talloc_asprintf(tctx, "\\\\%s", dcerpc_server_name(p));
r.in.computer_name = cli_credentials_get_workstation(credentials);
r.in.validation_level = NetlogonValidationGenericInfo2;
r.out.validation = &validation;
r.out.authoritative = &authoritative;
r.out.return_authenticator = &return_authenticator;
status = dcerpc_netr_LogonSamLogon(p, tctx, &r);
torture_assert_ntstatus_ok(tctx, status, "LogonSamLogon failed");
/* This will break the signature nicely (even in the crypto wrapping), check we get a logon failure */
generic.data[generic.length-1]++;
logon.generic = &generic;
ZERO_STRUCT(auth2);
netlogon_creds_client_authenticator(creds, &auth);
r.in.credential = &auth;
r.in.return_authenticator = &auth2;
r.in.logon_level = NetlogonGenericInformation;
r.in.logon = &logon;
r.in.server_name = talloc_asprintf(tctx, "\\\\%s", dcerpc_server_name(p));
r.in.computer_name = cli_credentials_get_workstation(credentials);
r.in.validation_level = NetlogonValidationGenericInfo2;
status = dcerpc_netr_LogonSamLogon(p, tctx, &r);
torture_assert_ntstatus_equal(tctx, status, NT_STATUS_LOGON_FAILURE, "LogonSamLogon failed");
torture_assert(tctx, netlogon_creds_client_check(creds, &r.out.return_authenticator->cred),
"Credential chaining failed");
/* This will break the parsing nicely (even in the crypto wrapping), check we get INVALID_PARAMETER */
generic.length--;
logon.generic = &generic;
ZERO_STRUCT(auth2);
netlogon_creds_client_authenticator(creds, &auth);
r.in.credential = &auth;
r.in.return_authenticator = &auth2;
r.in.logon_level = NetlogonGenericInformation;
r.in.logon = &logon;
r.in.server_name = talloc_asprintf(tctx, "\\\\%s", dcerpc_server_name(p));
r.in.computer_name = cli_credentials_get_workstation(credentials);
r.in.validation_level = NetlogonValidationGenericInfo2;
status = dcerpc_netr_LogonSamLogon(p, tctx, &r);
torture_assert_ntstatus_equal(tctx, status, NT_STATUS_INVALID_PARAMETER, "LogonSamLogon failed");
torture_assert(tctx, netlogon_creds_client_check(creds,
&r.out.return_authenticator->cred),
"Credential chaining failed");
pac_wrapped_struct.ChecksumLength = session_info->server_info->pac_srv_sig.signature.length;
pac_wrapped_struct.SignatureType = session_info->server_info->pac_kdc_sig.type;
/* Break the SignatureType */
pac_wrapped_struct.SignatureType++;
pac_wrapped_struct.SignatureLength = session_info->server_info->pac_kdc_sig.signature.length;
pac_wrapped_struct.ChecksumAndSignature = payload
= data_blob_talloc(tmp_ctx, NULL,
pac_wrapped_struct.ChecksumLength
+ pac_wrapped_struct.SignatureLength);
memcpy(&payload.data[0],
session_info->server_info->pac_srv_sig.signature.data,
pac_wrapped_struct.ChecksumLength);
memcpy(&payload.data[pac_wrapped_struct.ChecksumLength],
session_info->server_info->pac_kdc_sig.signature.data,
pac_wrapped_struct.SignatureLength);
ndr_err = ndr_push_struct_blob(&pac_wrapped, tmp_ctx, lp_iconv_convenience(tctx->lp_ctx), &pac_wrapped_struct,
(ndr_push_flags_fn_t)ndr_push_PAC_Validate);
torture_assert(tctx, NDR_ERR_CODE_IS_SUCCESS(ndr_err), "ndr_push_struct_blob of PACValidate structure failed");
torture_assert(tctx, (creds->negotiate_flags & NETLOGON_NEG_ARCFOUR), "not willing to even try a PACValidate without RC4 encryption");
netlogon_creds_arcfour_crypt(creds, pac_wrapped.data, pac_wrapped.length);
generic.length = pac_wrapped.length;
generic.data = pac_wrapped.data;
logon.generic = &generic;
ZERO_STRUCT(auth2);
netlogon_creds_client_authenticator(creds, &auth);
r.in.credential = &auth;
r.in.return_authenticator = &auth2;
r.in.logon_level = NetlogonGenericInformation;
r.in.logon = &logon;
r.in.server_name = talloc_asprintf(tctx, "\\\\%s", dcerpc_server_name(p));
r.in.computer_name = cli_credentials_get_workstation(credentials);
r.in.validation_level = NetlogonValidationGenericInfo2;
status = dcerpc_netr_LogonSamLogon(p, tctx, &r);
torture_assert_ntstatus_equal(tctx, status, NT_STATUS_LOGON_FAILURE, "LogonSamLogon failed");
torture_assert(tctx, netlogon_creds_client_check(creds, &r.out.return_authenticator->cred),
"Credential chaining failed");
pac_wrapped_struct.ChecksumLength = session_info->server_info->pac_srv_sig.signature.length;
pac_wrapped_struct.SignatureType = session_info->server_info->pac_kdc_sig.type;
pac_wrapped_struct.SignatureLength = session_info->server_info->pac_kdc_sig.signature.length;
pac_wrapped_struct.ChecksumAndSignature = payload
= data_blob_talloc(tmp_ctx, NULL,
pac_wrapped_struct.ChecksumLength
+ pac_wrapped_struct.SignatureLength);
memcpy(&payload.data[0],
session_info->server_info->pac_srv_sig.signature.data,
pac_wrapped_struct.ChecksumLength);
memcpy(&payload.data[pac_wrapped_struct.ChecksumLength],
session_info->server_info->pac_kdc_sig.signature.data,
pac_wrapped_struct.SignatureLength);
/* Break the signature length */
pac_wrapped_struct.SignatureLength++;
ndr_err = ndr_push_struct_blob(&pac_wrapped, tmp_ctx, lp_iconv_convenience(tctx->lp_ctx), &pac_wrapped_struct,
(ndr_push_flags_fn_t)ndr_push_PAC_Validate);
torture_assert(tctx, NDR_ERR_CODE_IS_SUCCESS(ndr_err), "ndr_push_struct_blob of PACValidate structure failed");
torture_assert(tctx, (creds->negotiate_flags & NETLOGON_NEG_ARCFOUR), "not willing to even try a PACValidate without RC4 encryption");
netlogon_creds_arcfour_crypt(creds, pac_wrapped.data, pac_wrapped.length);
generic.length = pac_wrapped.length;
generic.data = pac_wrapped.data;
logon.generic = &generic;
ZERO_STRUCT(auth2);
netlogon_creds_client_authenticator(creds, &auth);
r.in.credential = &auth;
r.in.return_authenticator = &auth2;
r.in.logon_level = NetlogonGenericInformation;
r.in.logon = &logon;
r.in.server_name = talloc_asprintf(tctx, "\\\\%s", dcerpc_server_name(p));
r.in.computer_name = cli_credentials_get_workstation(credentials);
r.in.validation_level = NetlogonValidationGenericInfo2;
status = dcerpc_netr_LogonSamLogon(p, tctx, &r);
torture_assert_ntstatus_equal(tctx, status, NT_STATUS_INVALID_PARAMETER, "LogonSamLogon failed");
torture_assert(tctx, netlogon_creds_client_check(creds, &r.out.return_authenticator->cred),
"Credential chaining failed");
return true;
}
