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-rw-r--r--source4/auth/ntlm_check.c111
1 files changed, 61 insertions, 50 deletions
diff --git a/source4/auth/ntlm_check.c b/source4/auth/ntlm_check.c
index f101b230d4..eda06a1ddd 100644
--- a/source4/auth/ntlm_check.c
+++ b/source4/auth/ntlm_check.c
@@ -29,7 +29,8 @@
Core of smb password checking routine.
****************************************************************************/
-static BOOL smb_pwd_check_ntlmv1(const DATA_BLOB *nt_response,
+static BOOL smb_pwd_check_ntlmv1(TALLOC_CTX *mem_ctx,
+ const DATA_BLOB *nt_response,
const uint8_t *part_passwd,
const DATA_BLOB *sec_blob,
DATA_BLOB *user_sess_key)
@@ -57,7 +58,7 @@ static BOOL smb_pwd_check_ntlmv1(const DATA_BLOB *nt_response,
SMBOWFencrypt(part_passwd, sec_blob->data, p24);
if (user_sess_key != NULL) {
- *user_sess_key = data_blob(NULL, 16);
+ *user_sess_key = data_blob_talloc(mem_ctx, NULL, 16);
SMBsesskeygen_ntv1(part_passwd, user_sess_key->data);
}
@@ -80,7 +81,8 @@ static BOOL smb_pwd_check_ntlmv1(const DATA_BLOB *nt_response,
Note: The same code works with both NTLMv2 and LMv2.
****************************************************************************/
-static BOOL smb_pwd_check_ntlmv2(const DATA_BLOB *ntv2_response,
+static BOOL smb_pwd_check_ntlmv2(TALLOC_CTX *mem_ctx,
+ const DATA_BLOB *ntv2_response,
const uint8_t *part_passwd,
const DATA_BLOB *sec_blob,
const char *user, const char *domain,
@@ -114,7 +116,7 @@ static BOOL smb_pwd_check_ntlmv2(const DATA_BLOB *ntv2_response,
return False;
}
- client_key_data = data_blob(ntv2_response->data+16, ntv2_response->length-16);
+ client_key_data = data_blob_talloc(mem_ctx, ntv2_response->data+16, ntv2_response->length-16);
/*
todo: should we be checking this for anything? We can't for LMv2,
but for NTLMv2 it is meant to contain the current time etc.
@@ -128,7 +130,7 @@ static BOOL smb_pwd_check_ntlmv2(const DATA_BLOB *ntv2_response,
SMBOWFencrypt_ntv2(kr, sec_blob, &client_key_data, value_from_encryption);
if (user_sess_key != NULL) {
- *user_sess_key = data_blob(NULL, 16);
+ *user_sess_key = data_blob_talloc(mem_ctx, NULL, 16);
SMBsesskeygen_ntv2(kr, value_from_encryption, user_sess_key->data);
}
@@ -193,7 +195,7 @@ NTSTATUS ntlm_password_check(TALLOC_CTX *mem_ctx,
if (memcmp(nt_interactive_password->data, nt_pw, 16) == 0) {
if (user_sess_key) {
- *user_sess_key = data_blob(NULL, 16);
+ *user_sess_key = data_blob_talloc(mem_ctx, NULL, 16);
SMBsesskeygen_ntv1(nt_pw, user_sess_key->data);
}
return NT_STATUS_OK;
@@ -281,32 +283,35 @@ NTSTATUS ntlm_password_check(TALLOC_CTX *mem_ctx,
use it
*/
DEBUG(4,("ntlm_password_check: Checking NTLMv2 password with domain [%s]\n", client_domain));
- if (smb_pwd_check_ntlmv2( nt_response,
- nt_pw, challenge,
- client_username,
- client_domain,
- False,
- user_sess_key)) {
+ if (smb_pwd_check_ntlmv2(mem_ctx,
+ nt_response,
+ nt_pw, challenge,
+ client_username,
+ client_domain,
+ False,
+ user_sess_key)) {
return NT_STATUS_OK;
}
DEBUG(4,("ntlm_password_check: Checking NTLMv2 password with uppercased version of domain [%s]\n", client_domain));
- if (smb_pwd_check_ntlmv2( nt_response,
- nt_pw, challenge,
- client_username,
- client_domain,
- True,
- user_sess_key)) {
+ if (smb_pwd_check_ntlmv2(mem_ctx,
+ nt_response,
+ nt_pw, challenge,
+ client_username,
+ client_domain,
+ True,
+ user_sess_key)) {
return NT_STATUS_OK;
}
DEBUG(4,("ntlm_password_check: Checking NTLMv2 password without a domain\n"));
- if (smb_pwd_check_ntlmv2( nt_response,
- nt_pw, challenge,
- client_username,
- "",
- False,
- user_sess_key)) {
+ if (smb_pwd_check_ntlmv2(mem_ctx,
+ nt_response,
+ nt_pw, challenge,
+ client_username,
+ "",
+ False,
+ user_sess_key)) {
return NT_STATUS_OK;
} else {
DEBUG(3,("ntlm_password_check: NTLMv2 password check failed\n"));
@@ -319,14 +324,15 @@ NTSTATUS ntlm_password_check(TALLOC_CTX *mem_ctx,
use it (ie. does it exist in the smbpasswd file).
*/
DEBUG(4,("ntlm_password_check: Checking NT MD4 password\n"));
- if (smb_pwd_check_ntlmv1(nt_response,
+ if (smb_pwd_check_ntlmv1(mem_ctx,
+ nt_response,
nt_pw, challenge,
user_sess_key)) {
/* The LM session key for this response is not very secure,
so use it only if we otherwise allow LM authentication */
if (lp_lanman_auth() && lm_pw) {
- *lm_sess_key = data_blob(lm_pw, 8);
+ *lm_sess_key = data_blob_talloc(mem_ctx, lm_pw, 8);
}
return NT_STATUS_OK;
} else {
@@ -361,7 +367,8 @@ NTSTATUS ntlm_password_check(TALLOC_CTX *mem_ctx,
username));
} else {
DEBUG(4,("ntlm_password_check: Checking LM password\n"));
- if (smb_pwd_check_ntlmv1(lm_response,
+ if (smb_pwd_check_ntlmv1(mem_ctx,
+ lm_response,
lm_pw, challenge,
NULL)) {
/* The session key for this response is still very odd.
@@ -372,8 +379,8 @@ NTSTATUS ntlm_password_check(TALLOC_CTX *mem_ctx,
uint8_t first_8_lm_hash[16];
memcpy(first_8_lm_hash, lm_pw, 8);
memset(first_8_lm_hash + 8, '\0', 8);
- *user_sess_key = data_blob(first_8_lm_hash, 16);
- *lm_sess_key = data_blob(lm_pw, 8);
+ *user_sess_key = data_blob_talloc(mem_ctx, first_8_lm_hash, 16);
+ *lm_sess_key = data_blob_talloc(mem_ctx, lm_pw, 8);
}
return NT_STATUS_OK;
}
@@ -388,32 +395,35 @@ NTSTATUS ntlm_password_check(TALLOC_CTX *mem_ctx,
- related to Win9X, legacy NAS pass-though authentication
*/
DEBUG(4,("ntlm_password_check: Checking LMv2 password with domain %s\n", client_domain));
- if (smb_pwd_check_ntlmv2( lm_response,
- nt_pw, challenge,
- client_username,
- client_domain,
- False,
- NULL)) {
+ if (smb_pwd_check_ntlmv2(mem_ctx,
+ lm_response,
+ nt_pw, challenge,
+ client_username,
+ client_domain,
+ False,
+ NULL)) {
return NT_STATUS_OK;
}
DEBUG(4,("ntlm_password_check: Checking LMv2 password with upper-cased version of domain %s\n", client_domain));
- if (smb_pwd_check_ntlmv2( lm_response,
- nt_pw, challenge,
- client_username,
- client_domain,
- True,
- NULL)) {
+ if (smb_pwd_check_ntlmv2(mem_ctx,
+ lm_response,
+ nt_pw, challenge,
+ client_username,
+ client_domain,
+ True,
+ NULL)) {
return NT_STATUS_OK;
}
DEBUG(4,("ntlm_password_check: Checking LMv2 password without a domain\n"));
- if (smb_pwd_check_ntlmv2( lm_response,
- nt_pw, challenge,
- client_username,
- "",
- False,
- NULL)) {
+ if (smb_pwd_check_ntlmv2(mem_ctx,
+ lm_response,
+ nt_pw, challenge,
+ client_username,
+ "",
+ False,
+ NULL)) {
return NT_STATUS_OK;
}
@@ -422,7 +432,8 @@ NTSTATUS ntlm_password_check(TALLOC_CTX *mem_ctx,
*/
DEBUG(4,("ntlm_password_check: Checking NT MD4 password in LM field\n"));
if (lp_ntlm_auth()) {
- if (smb_pwd_check_ntlmv1(lm_response,
+ if (smb_pwd_check_ntlmv1(mem_ctx,
+ lm_response,
nt_pw, challenge,
NULL)) {
/* The session key for this response is still very odd.
@@ -433,8 +444,8 @@ NTSTATUS ntlm_password_check(TALLOC_CTX *mem_ctx,
uint8_t first_8_lm_hash[16];
memcpy(first_8_lm_hash, lm_pw, 8);
memset(first_8_lm_hash + 8, '\0', 8);
- *user_sess_key = data_blob(first_8_lm_hash, 16);
- *lm_sess_key = data_blob(lm_pw, 8);
+ *user_sess_key = data_blob_talloc(mem_ctx, first_8_lm_hash, 16);
+ *lm_sess_key = data_blob_talloc(mem_ctx, lm_pw, 8);
}
return NT_STATUS_OK;
}
generated by cgit (git 2.34.1) at 2024-11-05 19:00:23 +0000