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Diffstat (limited to 'source4/auth/credentials/credentials_ntlm.c')
-rw-r--r--source4/auth/credentials/credentials_ntlm.c256
1 files changed, 0 insertions, 256 deletions
diff --git a/source4/auth/credentials/credentials_ntlm.c b/source4/auth/credentials/credentials_ntlm.c
deleted file mode 100644
index 7f4af4f08c..0000000000
--- a/source4/auth/credentials/credentials_ntlm.c
+++ /dev/null
@@ -1,256 +0,0 @@
-/*
- Unix SMB/CIFS implementation.
-
- User credentials handling
-
- Copyright (C) Andrew Tridgell 2001
- Copyright (C) Andrew Bartlett <abartlet@samba.org> 2001-2005
- Copyright (C) Stefan Metzmacher 2005
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 3 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
-*/
-
-#include "includes.h"
-#include "librpc/gen_ndr/samr.h" /* for struct samrPassword */
-#include "../lib/crypto/crypto.h"
-#include "libcli/auth/libcli_auth.h"
-#include "auth/credentials/credentials.h"
-
-_PUBLIC_ NTSTATUS cli_credentials_get_ntlm_response(struct cli_credentials *cred, TALLOC_CTX *mem_ctx,
- int *flags,
- DATA_BLOB challenge, DATA_BLOB target_info,
- DATA_BLOB *_lm_response, DATA_BLOB *_nt_response,
- DATA_BLOB *_lm_session_key, DATA_BLOB *_session_key)
-{
- const char *user, *domain;
- DATA_BLOB lm_response, nt_response;
- DATA_BLOB lm_session_key, session_key;
- const struct samr_Password *nt_hash;
- lm_session_key = data_blob(NULL, 0);
-
- /* We may already have an NTLM response we prepared earlier.
- * This is used for NTLM pass-though authentication */
- if (cred->nt_response.data || cred->lm_response.data) {
- *_nt_response = cred->nt_response;
- *_lm_response = cred->lm_response;
-
- if (!cred->lm_response.data) {
- *flags = *flags & ~CLI_CRED_LANMAN_AUTH;
- }
- *_lm_session_key = data_blob(NULL, 0);
- *_session_key = data_blob(NULL, 0);
- return NT_STATUS_OK;
- }
-
- nt_hash = cli_credentials_get_nt_hash(cred, mem_ctx);
-
- cli_credentials_get_ntlm_username_domain(cred, mem_ctx, &user, &domain);
-
- /* If we are sending a username@realm login (see function
- * above), then we will not send LM, it will not be
- * accepted */
- if (cred->principal_obtained > cred->username_obtained) {
- *flags = *flags & ~CLI_CRED_LANMAN_AUTH;
- }
-
- /* Likewise if we are a machine account (avoid protocol downgrade attacks) */
- if (cred->machine_account) {
- *flags = *flags & ~CLI_CRED_LANMAN_AUTH;
- }
-
- if (cred->use_kerberos == CRED_MUST_USE_KERBEROS) {
- return NT_STATUS_ACCESS_DENIED;
- }
-
- if (!nt_hash) {
- static const uint8_t zeros[16];
- /* do nothing - blobs are zero length */
-
- /* session key is all zeros */
- session_key = data_blob_talloc(mem_ctx, zeros, 16);
- lm_session_key = data_blob_talloc(mem_ctx, zeros, 16);
-
- lm_response = data_blob(NULL, 0);
- nt_response = data_blob(NULL, 0);
-
- /* not doing NTLM2 without a password */
- *flags &= ~CLI_CRED_NTLM2;
- } else if (*flags & CLI_CRED_NTLMv2_AUTH) {
-
- if (!target_info.length) {
- /* be lazy, match win2k - we can't do NTLMv2 without it */
- DEBUG(1, ("Server did not provide 'target information', required for NTLMv2\n"));
- return NT_STATUS_INVALID_PARAMETER;
- }
-
- /* TODO: if the remote server is standalone, then we should replace 'domain'
- with the server name as supplied above */
-
- if (!SMBNTLMv2encrypt_hash(mem_ctx,
- user,
- domain,
- nt_hash->hash, &challenge,
- &target_info,
- &lm_response, &nt_response,
- NULL, &session_key)) {
- return NT_STATUS_NO_MEMORY;
- }
-
- /* LM Key is incompatible... */
- *flags &= ~CLI_CRED_LANMAN_AUTH;
- } else if (*flags & CLI_CRED_NTLM2) {
- struct MD5Context md5_session_nonce_ctx;
- uint8_t session_nonce[16];
- uint8_t session_nonce_hash[16];
- uint8_t user_session_key[16];
-
- lm_response = data_blob_talloc(mem_ctx, NULL, 24);
- generate_random_buffer(lm_response.data, 8);
- memset(lm_response.data+8, 0, 16);
-
- memcpy(session_nonce, challenge.data, 8);
- memcpy(&session_nonce[8], lm_response.data, 8);
-
- MD5Init(&md5_session_nonce_ctx);
- MD5Update(&md5_session_nonce_ctx, challenge.data, 8);
- MD5Update(&md5_session_nonce_ctx, lm_response.data, 8);
- MD5Final(session_nonce_hash, &md5_session_nonce_ctx);
-
- DEBUG(5, ("NTLMSSP challenge set by NTLM2\n"));
- DEBUG(5, ("challenge is: \n"));
- dump_data(5, session_nonce_hash, 8);
-
- nt_response = data_blob_talloc(mem_ctx, NULL, 24);
- SMBOWFencrypt(nt_hash->hash,
- session_nonce_hash,
- nt_response.data);
-
- session_key = data_blob_talloc(mem_ctx, NULL, 16);
-
- SMBsesskeygen_ntv1(nt_hash->hash, user_session_key);
- hmac_md5(user_session_key, session_nonce, sizeof(session_nonce), session_key.data);
- dump_data_pw("NTLM2 session key:\n", session_key.data, session_key.length);
-
- /* LM Key is incompatible... */
- *flags &= ~CLI_CRED_LANMAN_AUTH;
- } else {
- uint8_t lm_hash[16];
- nt_response = data_blob_talloc(mem_ctx, NULL, 24);
- SMBOWFencrypt(nt_hash->hash, challenge.data,
- nt_response.data);
-
- session_key = data_blob_talloc(mem_ctx, NULL, 16);
- SMBsesskeygen_ntv1(nt_hash->hash, session_key.data);
- dump_data_pw("NT session key:\n", session_key.data, session_key.length);
-
- /* lanman auth is insecure, it may be disabled.
- We may also not have a password */
- if (*flags & CLI_CRED_LANMAN_AUTH) {
- const char *password;
- password = cli_credentials_get_password(cred);
- if (!password) {
- lm_response = nt_response;
- } else {
- lm_response = data_blob_talloc(mem_ctx, NULL, 24);
- if (!SMBencrypt(password,challenge.data,
- lm_response.data)) {
- /* If the LM password was too long (and therefore the LM hash being
- of the first 14 chars only), don't send it.
-
- We don't have any better options but to send the NT response
- */
- data_blob_free(&lm_response);
- lm_response = nt_response;
- /* LM Key is incompatible with 'long' passwords */
- *flags &= ~CLI_CRED_LANMAN_AUTH;
- } else {
- E_deshash(password, lm_hash);
- lm_session_key = data_blob_talloc(mem_ctx, NULL, 16);
- memcpy(lm_session_key.data, lm_hash, 8);
- memset(&lm_session_key.data[8], '\0', 8);
-
- if (!(*flags & CLI_CRED_NTLM_AUTH)) {
- session_key = lm_session_key;
- }
- }
- }
- } else {
- const char *password;
-
- /* LM Key is incompatible... */
- lm_response = nt_response;
- *flags &= ~CLI_CRED_LANMAN_AUTH;
-
- password = cli_credentials_get_password(cred);
- if (password) {
- E_deshash(password, lm_hash);
- lm_session_key = data_blob_talloc(mem_ctx, NULL, 16);
- memcpy(lm_session_key.data, lm_hash, 8);
- memset(&lm_session_key.data[8], '\0', 8);
- }
- }
- }
- if (_lm_response) {
- *_lm_response = lm_response;
- }
- if (_nt_response) {
- *_nt_response = nt_response;
- }
- if (_lm_session_key) {
- *_lm_session_key = lm_session_key;
- }
- if (_session_key) {
- *_session_key = session_key;
- }
- return NT_STATUS_OK;
-}
-
-_PUBLIC_ bool cli_credentials_set_nt_hash(struct cli_credentials *cred,
- const struct samr_Password *nt_hash,
- enum credentials_obtained obtained)
-{
- if (obtained >= cred->password_obtained) {
- cli_credentials_set_password(cred, NULL, obtained);
- if (nt_hash) {
- cred->nt_hash = talloc(cred, struct samr_Password);
- *cred->nt_hash = *nt_hash;
- } else {
- cred->nt_hash = NULL;
- }
- return true;
- }
-
- return false;
-}
-
-_PUBLIC_ bool cli_credentials_set_ntlm_response(struct cli_credentials *cred,
- const DATA_BLOB *lm_response,
- const DATA_BLOB *nt_response,
- enum credentials_obtained obtained)
-{
- if (obtained >= cred->password_obtained) {
- cli_credentials_set_password(cred, NULL, obtained);
- if (nt_response) {
- cred->nt_response = data_blob_talloc(cred, nt_response->data, nt_response->length);
- talloc_steal(cred, cred->nt_response.data);
- }
- if (nt_response) {
- cred->lm_response = data_blob_talloc(cred, lm_response->data, lm_response->length);
- }
- return true;
- }
-
- return false;
-}
-
generated by cgit (git 2.34.1) at 2024-07-04 22:15:03 +0000