1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
|
/*
Unix SMB/CIFS implementation.
dcerpc authentication operations
Copyright (C) Andrew Tridgell 2003
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 2 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, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "includes.h"
/*
do a simple ntlm style authentication on a dcerpc pipe
*/
NTSTATUS dcerpc_bind_auth_ntlm(struct dcerpc_pipe *p,
const char *uuid, unsigned version,
const char *domain,
const char *username,
const char *password)
{
NTSTATUS status;
struct ntlmssp_state *state;
TALLOC_CTX *mem_ctx;
DATA_BLOB credentials;
mem_ctx = talloc_init("dcerpc_bind_auth_ntlm");
if (!mem_ctx) {
return NT_STATUS_NO_MEMORY;
}
status = ntlmssp_client_start(&state);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
status = ntlmssp_set_domain(state, domain);
if (!NT_STATUS_IS_OK(status)) {
goto done;
}
status = ntlmssp_set_username(state, username);
if (!NT_STATUS_IS_OK(status)) {
goto done;
}
status = ntlmssp_set_password(state, password);
if (!NT_STATUS_IS_OK(status)) {
goto done;
}
p->auth_info = talloc(p->mem_ctx, sizeof(*p->auth_info));
if (!p->auth_info) {
status = NT_STATUS_NO_MEMORY;
goto done;
}
p->auth_info->auth_type = DCERPC_AUTH_TYPE_NTLMSSP;
if (p->flags & DCERPC_SEAL) {
p->auth_info->auth_level = DCERPC_AUTH_LEVEL_PRIVACY;
state->neg_flags |= NTLMSSP_NEGOTIATE_SIGN | NTLMSSP_NEGOTIATE_SEAL;
} else if (p->flags & DCERPC_SIGN) {
state->neg_flags |= NTLMSSP_NEGOTIATE_SIGN;
p->auth_info->auth_level = DCERPC_AUTH_LEVEL_INTEGRITY;
} else {
state->neg_flags &= ~(NTLMSSP_NEGOTIATE_SIGN | NTLMSSP_NEGOTIATE_SEAL);
p->auth_info->auth_level = DCERPC_AUTH_LEVEL_NONE;
}
p->auth_info->auth_pad_length = 0;
p->auth_info->auth_reserved = 0;
p->auth_info->auth_context_id = random();
p->auth_info->credentials = data_blob(NULL, 0);
p->ntlmssp_state = NULL;
status = ntlmssp_update(state,
p->auth_info->credentials,
&credentials);
if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
goto done;
}
p->auth_info->credentials = data_blob_talloc(mem_ctx,
credentials.data,
credentials.length);
data_blob_free(&credentials);
status = dcerpc_bind_byuuid(p, mem_ctx, uuid, version);
if (!NT_STATUS_IS_OK(status)) {
goto done;
}
status = ntlmssp_update(state,
p->auth_info->credentials,
&credentials);
if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
goto done;
}
p->auth_info->credentials = data_blob_talloc(mem_ctx,
credentials.data,
credentials.length);
data_blob_free(&credentials);
status = dcerpc_auth3(p, mem_ctx);
if (!NT_STATUS_IS_OK(status)) {
goto done;
}
p->ntlmssp_state = state;
switch (p->auth_info->auth_level) {
case DCERPC_AUTH_LEVEL_PRIVACY:
case DCERPC_AUTH_LEVEL_INTEGRITY:
/* setup for signing */
status = ntlmssp_sign_init(state);
break;
}
done:
talloc_destroy(mem_ctx);
if (!NT_STATUS_IS_OK(status)) {
p->ntlmssp_state = NULL;
}
return status;
}
/*
do a non-athenticated dcerpc bind
*/
NTSTATUS dcerpc_bind_auth_none(struct dcerpc_pipe *p,
const char *uuid, unsigned version)
{
TALLOC_CTX *mem_ctx;
NTSTATUS status;
mem_ctx = talloc_init("dcerpc_bind_auth_ntlm");
if (!mem_ctx) {
return NT_STATUS_NO_MEMORY;
}
status = dcerpc_bind_byuuid(p, mem_ctx, uuid, version);
talloc_destroy(mem_ctx);
return status;
}
|
