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r1009: Make all users of NT and LM passwords use the samr_Password structure.

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This includes the netlogon pipe, for the machine account password
change system.

Andrew Bartlett
This commit is contained in:
Andrew Bartlett 2004-06-04 11:58:46 +00:00 committed by Gerald (Jerry) Carter
parent 20f848aeef
commit 49d545a820
9 changed files with 82 additions and 78 deletions
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12
source/libcli/auth/credentials.c
View File

@ -128,20 +128,20 @@ static void creds_step(struct creds_CredentialState *creds)
/*
DES encrypt a 16 byte password buffer using the session key
*/
void creds_des_encrypt(struct creds_CredentialState *creds, struct netr_Password *pass)
void creds_des_encrypt(struct creds_CredentialState *creds, struct samr_Password *pass)
{
struct netr_Password tmp;
des_crypt112_16(tmp.data, pass->data, creds->session_key, 1);
struct samr_Password tmp;
des_crypt112_16(tmp.hash, pass->hash, creds->session_key, 1);
*pass = tmp;
}
/*
DES decrypt a 16 byte password buffer using the session key
*/
void creds_des_decrypt(struct creds_CredentialState *creds, struct netr_Password *pass)
void creds_des_decrypt(struct creds_CredentialState *creds, struct samr_Password *pass)
{
struct netr_Password tmp;
des_crypt112_16(tmp.data, pass->data, creds->session_key, 0);
struct samr_Password tmp;
des_crypt112_16(tmp.hash, pass->hash, creds->session_key, 0);
*pass = tmp;
}

4
source/librpc/idl/misc.idl
View File

@ -120,4 +120,8 @@ interface misc
uint16 units_per_week;
[size_is(1260), length_is(units_per_week/8)] uint8 *bitmap;
} samr_LogonHours;
typedef [public, flag(NDR_PAHEX)] struct {
uint8 hash[16];
} samr_Password;
}

14
source/librpc/idl/netlogon.idl
View File

@ -101,14 +101,10 @@ interface netlogon
netr_String workstation;
} netr_IdentityInfo;
typedef [flag(NDR_PAHEX)] struct {
uint8 data[16];
} netr_Password;
typedef struct {
netr_IdentityInfo identity_info;
netr_Password lmpassword;
netr_Password ntpassword;
samr_Password lmpassword;
samr_Password ntpassword;
} netr_PasswordInfo;
typedef [flag(NDR_PAHEX)] struct {
@ -300,7 +296,7 @@ interface netlogon
[in] uint16 secure_channel_type,
[in] unistr computer_name,
[in] netr_Authenticator credential,
[in] netr_Password new_password,
[in] samr_Password new_password,
[out] netr_Authenticator return_authenticator
);
@ -344,8 +340,8 @@ interface netlogon
NTTIME PwLastSet;
NTTIME AccountExpires;
uint32 AccountControl;
netr_Password lmpw;
netr_Password ntpw;
samr_Password lmpw;
samr_Password ntpw;
bool8 NTPwPresent;
bool8 LMPwPresent;
bool8 PwExpired;

28
source/librpc/idl/samr.idl
View File

@ -808,10 +808,6 @@
/************************/
/* Function 0x26 */
typedef [flag(NDR_PAHEX)] struct {
uint8 hash[16];
} samr_Hash;
/*
this is a password change interface that doesn't give
the server the plaintext password. Depricated.
@ -819,15 +815,15 @@
NTSTATUS samr_ChangePasswordUser(
[in,ref] policy_handle *handle,
[in] bool8 lm_present,
[in] samr_Hash *old_lm_crypted,
[in] samr_Hash *new_lm_crypted,
[in] samr_Password *old_lm_crypted,
[in] samr_Password *new_lm_crypted,
[in] bool8 nt_present,
[in] samr_Hash *old_nt_crypted,
[in] samr_Hash *new_nt_crypted,
[in] samr_Password *old_nt_crypted,
[in] samr_Password *new_nt_crypted,
[in] bool8 cross1_present,
[in] samr_Hash *nt_cross,
[in] samr_Password *nt_cross,
[in] bool8 cross2_present,
[in] samr_Hash *lm_cross
[in] samr_Password *lm_cross
);
/************************/
@ -1090,7 +1086,7 @@
[in] samr_AsciiName *server,
[in,ref] samr_AsciiName *account,
[in] samr_CryptPassword *password,
[in] samr_Hash *hash
[in] samr_Password *hash
);
/************************/
@ -1099,10 +1095,10 @@
[in] samr_Name *server,
[in,ref] samr_Name *account,
[in] samr_CryptPassword *nt_password,
[in] samr_Hash *nt_verifier,
[in] samr_Password *nt_verifier,
[in] bool8 lm_change,
[in] samr_CryptPassword *lm_password,
[in] samr_Hash *lm_verifier
[in] samr_Password *lm_verifier
);
/************************/
@ -1186,10 +1182,10 @@
[in] samr_Name *server,
[in,ref] samr_Name *account,
[in] samr_CryptPassword *nt_password,
[in] samr_Hash *nt_verifier,
[in] samr_Password *nt_verifier,
[in] bool8 lm_change,
[in] samr_CryptPassword *lm_password,
[in] samr_Hash *lm_verifier,
[in] samr_Password *lm_verifier,
[in] samr_CryptPassword *password3,
[out] samr_DomInfo1 *dominfo,
[out] samr_ChangeReject *reject
@ -1236,7 +1232,7 @@
NTSTATUS samr_SetDsrmPassword(
[in] samr_Name *name,
[in] uint32 unknown,
[in] samr_Hash *hash
[in] samr_Password *hash
);

5
source/rpc_server/netlogon/dcerpc_netlogon.c
View File

@ -332,7 +332,6 @@ static NTSTATUS netr_ServerPasswordSet(struct dcesrv_call_state *dce_call, TALLO
struct ldb_message **msgs;
struct ldb_message **msgs_domain;
NTSTATUS nt_status;
struct samr_Hash newNtHash;
struct ldb_message mod, *msg_set_pw = &mod;
const char *domain_dn;
const char *domain_sid;
@ -410,15 +409,13 @@ static NTSTATUS netr_ServerPasswordSet(struct dcesrv_call_state *dce_call, TALLO
creds_des_decrypt(pipe_state->creds, &r->in.new_password);
memcpy(newNtHash.hash, r->in.new_password.data, sizeof(newNtHash.hash));
/* set the password - samdb needs to know both the domain and user DNs,
so the domain password policy can be used */
nt_status = samdb_set_password(sam_ctx, mem_ctx,
msgs[0]->dn, domain_dn,
msg_set_pw,
NULL, /* Don't have plaintext */
NULL, &newNtHash,
NULL, &r->in.new_password,
False /* This is not considered a password change */,
NULL);

36
source/rpc_server/samr/samdb.c
View File

@ -482,11 +482,11 @@ NTTIME samdb_result_force_pwd_change(void *ctx, TALLOC_CTX *mem_ctx,
}
/*
pull a samr_Hash structutre from a result set.
pull a samr_Password structutre from a result set.
*/
struct samr_Hash samdb_result_hash(struct ldb_message *msg, const char *attr)
struct samr_Password samdb_result_hash(struct ldb_message *msg, const char *attr)
{
struct samr_Hash hash;
struct samr_Password hash;
const struct ldb_val *val = ldb_msg_find_ldb_val(msg, attr);
ZERO_STRUCT(hash);
if (val) {
@ -496,10 +496,10 @@ struct samr_Hash samdb_result_hash(struct ldb_message *msg, const char *attr)
}
/*
pull an array of samr_Hash structutres from a result set.
pull an array of samr_Password structutres from a result set.
*/
uint_t samdb_result_hashes(TALLOC_CTX *mem_ctx, struct ldb_message *msg,
const char *attr, struct samr_Hash **hashes)
const char *attr, struct samr_Password **hashes)
{
uint_t count = 0;
const struct ldb_val *val = ldb_msg_find_ldb_val(msg, attr);
@ -514,7 +514,7 @@ uint_t samdb_result_hashes(TALLOC_CTX *mem_ctx, struct ldb_message *msg,
return 0;
}
*hashes = talloc_array_p(mem_ctx, struct samr_Hash, count);
*hashes = talloc_array_p(mem_ctx, struct samr_Password, count);
if (! *hashes) {
return 0;
}
@ -527,27 +527,27 @@ uint_t samdb_result_hashes(TALLOC_CTX *mem_ctx, struct ldb_message *msg,
}
NTSTATUS samdb_result_passwords(TALLOC_CTX *mem_ctx, struct ldb_message *msg,
uint8_t **lm_pwd, uint8_t **nt_pwd)
struct samr_Password **lm_pwd, struct samr_Password **nt_pwd)
{
const char *unicodePwd = samdb_result_string(msg, "unicodePwd", NULL);
struct samr_Hash *lmPwdHash, *ntPwdHash;
struct samr_Password *lmPwdHash, *ntPwdHash;
if (unicodePwd) {
if (nt_pwd) {
ntPwdHash = talloc_p(mem_ctx, struct samr_Hash);
ntPwdHash = talloc_p(mem_ctx, struct samr_Password);
if (!ntPwdHash) {
return NT_STATUS_NO_MEMORY;
}
E_md4hash(unicodePwd, ntPwdHash->hash);
*nt_pwd = ntPwdHash->hash;
*nt_pwd = ntPwdHash;
}
if (lm_pwd) {
BOOL lm_hash_ok;
lmPwdHash = talloc_p(mem_ctx, struct samr_Hash);
lmPwdHash = talloc_p(mem_ctx, struct samr_Password);
if (!lmPwdHash) {
return NT_STATUS_NO_MEMORY;
}
@ -556,7 +556,7 @@ NTSTATUS samdb_result_passwords(TALLOC_CTX *mem_ctx, struct ldb_message *msg,
lm_hash_ok = E_deshash(unicodePwd, lmPwdHash->hash);
if (lm_hash_ok) {
*lm_pwd = lmPwdHash->hash;
*lm_pwd = lmPwdHash;
} else {
*lm_pwd = NULL;
}
@ -570,7 +570,7 @@ NTSTATUS samdb_result_passwords(TALLOC_CTX *mem_ctx, struct ldb_message *msg,
} else if (num_nt > 1) {
return NT_STATUS_INTERNAL_DB_CORRUPTION;
} else {
*nt_pwd = ntPwdHash[0].hash;
*nt_pwd = &ntPwdHash[0];
}
}
if (lm_pwd) {
@ -581,7 +581,7 @@ NTSTATUS samdb_result_passwords(TALLOC_CTX *mem_ctx, struct ldb_message *msg,
} else if (num_lm > 1) {
return NT_STATUS_INTERNAL_DB_CORRUPTION;
} else {
*lm_pwd = lmPwdHash[0].hash;
*lm_pwd = &lmPwdHash[0];
}
}
@ -824,10 +824,10 @@ int samdb_msg_add_uint64(void *ctx, TALLOC_CTX *mem_ctx, struct ldb_message *msg
}
/*
add a samr_Hash element to a message
add a samr_Password element to a message
*/
int samdb_msg_add_hash(void *ctx, TALLOC_CTX *mem_ctx, struct ldb_message *msg,
const char *attr_name, struct samr_Hash hash)
const char *attr_name, struct samr_Password hash)
{
struct samdb_context *sam_ctx = ctx;
struct ldb_val val;
@ -842,10 +842,10 @@ int samdb_msg_add_hash(void *ctx, TALLOC_CTX *mem_ctx, struct ldb_message *msg,
}
/*
add a samr_Hash array to a message
add a samr_Password array to a message
*/
int samdb_msg_add_hashes(void *ctx, TALLOC_CTX *mem_ctx, struct ldb_message *msg,
const char *attr_name, struct samr_Hash *hashes, uint_t count)
const char *attr_name, struct samr_Password *hashes, uint_t count)
{
struct samdb_context *sam_ctx = ctx;
struct ldb_val val;

49
source/rpc_server/samr/samr_password.c
View File

@ -34,8 +34,8 @@ NTSTATUS samr_ChangePasswordUser(struct dcesrv_call_state *dce_call, TALLOC_CTX
struct samr_account_state *a_state;
struct ldb_message **res, mod, *msg;
int ret;
struct samr_Hash new_lmPwdHash, new_ntPwdHash, checkHash;
uint8 *lm_pwd, *nt_pwd;
struct samr_Password new_lmPwdHash, new_ntPwdHash, checkHash;
struct samr_Password *lm_pwd, *nt_pwd;
NTSTATUS status = NT_STATUS_OK;
const char * const attrs[] = { "lmPwdHash", "ntPwdHash" , "unicodePwd", NULL };
@ -72,27 +72,27 @@ NTSTATUS samr_ChangePasswordUser(struct dcesrv_call_state *dce_call, TALLOC_CTX
}
/* decrypt and check the new lm hash */
D_P16(lm_pwd, r->in.new_lm_crypted->hash, new_lmPwdHash.hash);
D_P16(lm_pwd->hash, r->in.new_lm_crypted->hash, new_lmPwdHash.hash);
D_P16(new_lmPwdHash.hash, r->in.old_lm_crypted->hash, checkHash.hash);
if (memcmp(checkHash.hash, lm_pwd, 16) != 0) {
return NT_STATUS_WRONG_PASSWORD;
}
/* decrypt and check the new nt hash */
D_P16(nt_pwd, r->in.new_nt_crypted->hash, new_ntPwdHash.hash);
D_P16(nt_pwd->hash, r->in.new_nt_crypted->hash, new_ntPwdHash.hash);
D_P16(new_ntPwdHash.hash, r->in.old_nt_crypted->hash, checkHash.hash);
if (memcmp(checkHash.hash, nt_pwd, 16) != 0) {
return NT_STATUS_WRONG_PASSWORD;
}
/* check the nt cross hash */
D_P16(lm_pwd, r->in.nt_cross->hash, checkHash.hash);
D_P16(lm_pwd->hash, r->in.nt_cross->hash, checkHash.hash);
if (memcmp(checkHash.hash, new_ntPwdHash.hash, 16) != 0) {
return NT_STATUS_WRONG_PASSWORD;
}
/* check the lm cross hash */
D_P16(nt_pwd, r->in.lm_cross->hash, checkHash.hash);
D_P16(nt_pwd->hash, r->in.lm_cross->hash, checkHash.hash);
if (memcmp(checkHash.hash, new_lmPwdHash.hash, 16) != 0) {
return NT_STATUS_WRONG_PASSWORD;
}
@ -136,7 +136,8 @@ NTSTATUS samr_OemChangePasswordUser2(struct dcesrv_call_state *dce_call, TALLOC_
struct ldb_message **res, mod;
const char * const attrs[] = { "objectSid", "lmPwdHash", "unicodePwd", NULL };
const char *domain_sid;
uint8 *lm_pwd;
struct samr_Password *lm_pwd;
DATA_BLOB lm_pwd_blob;
if (pwbuf == NULL) {
return NT_STATUS_WRONG_PASSWORD;
@ -169,8 +170,10 @@ NTSTATUS samr_OemChangePasswordUser2(struct dcesrv_call_state *dce_call, TALLOC_
}
/* decrypt the password we have been given */
arcfour_crypt(pwbuf->data, lm_pwd, 516);
lm_pwd_blob = data_blob(lm_pwd->hash, sizeof(lm_pwd->hash));
arcfour_crypt_blob(pwbuf->data, 516, &lm_pwd_blob);
data_blob_free(&lm_pwd_blob);
if (!decode_pw_buffer(pwbuf->data, new_pass, sizeof(new_pass),
&new_pass_len, STR_ASCII)) {
DEBUG(3,("samr: failed to decode password buffer\n"));
@ -243,7 +246,8 @@ NTSTATUS samr_ChangePasswordUser3(struct dcesrv_call_state *dce_call,
"pwdProperties", "minPwdAge", "maxPwdAge",
NULL };
const char *domain_sid;
uint8 *nt_pwd;
struct samr_Password *nt_pwd;
DATA_BLOB nt_pwd_blob;
struct samr_DomInfo1 *dominfo;
struct samr_ChangeReject *reject;
uint32_t reason = 0;
@ -279,12 +283,19 @@ NTSTATUS samr_ChangePasswordUser3(struct dcesrv_call_state *dce_call,
user_dn = res[0]->dn;
status = samdb_result_passwords(mem_ctx, res[0], NULL, &nt_pwd);
if (!NT_STATUS_IS_OK(status)) {
if (!NT_STATUS_IS_OK(status) ) {
goto failed;
}
if (!nt_pwd) {
status = NT_STATUS_WRONG_PASSWORD;
goto failed;
}
/* decrypt the password we have been given */
arcfour_crypt(r->in.nt_password->data, nt_pwd, 516);
nt_pwd_blob = data_blob(nt_pwd->hash, sizeof(nt_pwd->hash));
arcfour_crypt_blob(r->in.nt_password->data, 516, &nt_pwd_blob);
data_blob_free(&nt_pwd_blob);
if (!decode_pw_buffer(r->in.nt_password->data, new_pass, sizeof(new_pass),
&new_pass_len, STR_UNICODE)) {
@ -425,8 +436,8 @@ NTSTATUS samdb_set_password(void *ctx, TALLOC_CTX *mem_ctx,
const char *user_dn, const char *domain_dn,
struct ldb_message *mod,
const char *new_pass,
struct samr_Hash *lmNewHash,
struct samr_Hash *ntNewHash,
struct samr_Password *lmNewHash,
struct samr_Password *ntNewHash,
BOOL user_change,
uint32_t *reject_reason)
{
@ -442,9 +453,9 @@ NTSTATUS samdb_set_password(void *ctx, TALLOC_CTX *mem_ctx,
int64_t minPwdAge;
uint_t minPwdLength, pwdProperties, pwdHistoryLength;
uint_t userAccountControl, badPwdCount;
struct samr_Hash *lmPwdHistory, *ntPwdHistory, lmPwdHash, ntPwdHash;
struct samr_Hash *new_lmPwdHistory, *new_ntPwdHistory;
struct samr_Hash local_lmNewHash, local_ntNewHash;
struct samr_Password *lmPwdHistory, *ntPwdHistory, lmPwdHash, ntPwdHash;
struct samr_Password *new_lmPwdHistory, *new_ntPwdHistory;
struct samr_Password local_lmNewHash, local_ntNewHash;
int lmPwdHistory_len, ntPwdHistory_len;
struct ldb_message **res;
int count;
@ -623,12 +634,12 @@ NTSTATUS samdb_set_password(void *ctx, TALLOC_CTX *mem_ctx,
}
/* store the password history */
new_lmPwdHistory = talloc_array_p(mem_ctx, struct samr_Hash,
new_lmPwdHistory = talloc_array_p(mem_ctx, struct samr_Password,
pwdHistoryLength);
if (!new_lmPwdHistory) {
return NT_STATUS_NO_MEMORY;
}
new_ntPwdHistory = talloc_array_p(mem_ctx, struct samr_Hash,
new_ntPwdHistory = talloc_array_p(mem_ctx, struct samr_Password,
pwdHistoryLength);
if (!new_ntPwdHistory) {
return NT_STATUS_NO_MEMORY;

2
source/torture/rpc/netlogon.c
View File

@ -1119,7 +1119,7 @@ static BOOL test_SetPassword(struct dcerpc_pipe *p, TALLOC_CTX *mem_ctx)
r.in.computer_name = TEST_MACHINE_NAME;
password = generate_random_str(mem_ctx, 8);
E_md4hash(password, r.in.new_password.data);
E_md4hash(password, r.in.new_password.hash);
creds_des_encrypt(&creds, &r.in.new_password);

10
source/torture/rpc/samr.c
View File

@ -91,7 +91,7 @@ static BOOL test_SetDsrmPassword(struct dcerpc_pipe *p, TALLOC_CTX *mem_ctx,
NTSTATUS status;
struct samr_SetDsrmPassword r;
struct samr_Name name;
struct samr_Hash hash;
struct samr_Password hash;
if (lp_parm_int(-1, "torture", "dangerous") != 1) {
printf("samr_SetDsrmPassword disabled - enable dangerous tests to use\n");
@ -734,7 +734,7 @@ static BOOL test_ChangePasswordUser(struct dcerpc_pipe *p, TALLOC_CTX *mem_ctx,
NTSTATUS status;
struct samr_ChangePasswordUser r;
BOOL ret = True;
struct samr_Hash hash1, hash2, hash3, hash4, hash5, hash6;
struct samr_Password hash1, hash2, hash3, hash4, hash5, hash6;
struct policy_handle user_handle;
char *oldpass = *password;
char *newpass = samr_rand_pass(mem_ctx);
@ -794,7 +794,7 @@ static BOOL test_OemChangePasswordUser2(struct dcerpc_pipe *p, TALLOC_CTX *mem_c
NTSTATUS status;
struct samr_OemChangePasswordUser2 r;
BOOL ret = True;
struct samr_Hash lm_verifier;
struct samr_Password lm_verifier;
struct samr_CryptPassword lm_pass;
struct samr_AsciiName server, account;
char *oldpass = *password;
@ -838,7 +838,7 @@ static BOOL test_ChangePasswordUser2(struct dcerpc_pipe *p, TALLOC_CTX *mem_ctx,
BOOL ret = True;
struct samr_Name server, account;
struct samr_CryptPassword nt_pass, lm_pass;
struct samr_Hash nt_verifier, lm_verifier;
struct samr_Password nt_verifier, lm_verifier;
char *oldpass = *password;
char *newpass = samr_rand_pass(mem_ctx);
uint8_t old_nt_hash[16], new_nt_hash[16];
@ -891,7 +891,7 @@ static BOOL test_ChangePasswordUser3(struct dcerpc_pipe *p, TALLOC_CTX *mem_ctx,
BOOL ret = True;
struct samr_Name server, account;
struct samr_CryptPassword nt_pass, lm_pass;
struct samr_Hash nt_verifier, lm_verifier;
struct samr_Password nt_verifier, lm_verifier;
char *oldpass = *password;
char *newpass = samr_rand_pass(mem_ctx);
uint8_t old_nt_hash[16], new_nt_hash[16];