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
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
|
/*
Unix SMB/Netbios implementation.
Version 1.9.
Password cacheing. obfuscation is planned
Copyright (C) Luke Kenneth Casson Leighton 1996-1998
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"
/****************************************************************************
Initialises a password structure.
****************************************************************************/
void pwd_init(struct pwd_info *pwd)
{
memset((char *)pwd->password , '\0', sizeof(pwd->password ));
memset((char *)pwd->smb_lm_pwd, '\0', sizeof(pwd->smb_lm_pwd));
memset((char *)pwd->smb_nt_pwd, '\0', sizeof(pwd->smb_nt_pwd));
memset((char *)pwd->smb_lm_owf, '\0', sizeof(pwd->smb_lm_owf));
memset((char *)pwd->smb_nt_owf, '\0', sizeof(pwd->smb_nt_owf));
pwd->null_pwd = True; /* safest option... */
pwd->cleartext = False;
pwd->crypted = False;
}
/****************************************************************************
Returns NULL password flag.
****************************************************************************/
BOOL pwd_is_nullpwd(const struct pwd_info *pwd)
{
return pwd->null_pwd;
}
/****************************************************************************
Compares two passwords. hmm, not as trivial as expected. hmm.
****************************************************************************/
BOOL pwd_compare(const struct pwd_info *pwd1, const struct pwd_info *pwd2)
{
if (pwd1->cleartext && pwd2->cleartext) {
if (strequal(pwd1->password, pwd2->password))
return True;
}
if (pwd1->null_pwd && pwd2->null_pwd)
return True;
if (!pwd1->null_pwd && !pwd2->null_pwd &&
!pwd1->cleartext && !pwd2->cleartext) {
#ifdef DEBUG_PASSWORD
DEBUG(100,("pwd compare: nt#\n"));
dump_data(100, pwd1->smb_nt_pwd, 16);
dump_data(100, pwd2->smb_nt_pwd, 16);
#endif
if (memcmp(pwd1->smb_nt_pwd, pwd2->smb_nt_pwd, 16) == 0)
return True;
#ifdef DEBUG_PASSWORD
DEBUG(100,("pwd compare: lm#\n"));
dump_data(100, pwd1->smb_lm_pwd, 16);
dump_data(100, pwd2->smb_lm_pwd, 16);
#endif
if (memcmp(pwd1->smb_lm_pwd, pwd2->smb_lm_pwd, 16) == 0)
return True;
}
return False;
}
/****************************************************************************
Reads a password.
****************************************************************************/
void pwd_read(struct pwd_info *pwd, char *passwd_report, BOOL do_encrypt)
{
/* grab a password */
char *user_pass;
pwd_init(pwd);
user_pass = (char*)getpass(passwd_report);
/*
* Do not assume that an empty string is a NULL password.
* If you do this will break the session key generation for
* and account with an emtpy password. If you wish to use
* a NULL password, use the -N option to smbclient and rpcclient
* --jerry
*/
#if 0
if (user_pass == NULL || user_pass[0] == 0)
pwd_set_nullpwd(pwd);
else if (do_encrypt)
#endif
if (do_encrypt)
pwd_make_lm_nt_16(pwd, user_pass);
else
pwd_set_cleartext(pwd, user_pass);
}
/****************************************************************************
Stores a cleartext password.
****************************************************************************/
void pwd_set_nullpwd(struct pwd_info *pwd)
{
pwd_init(pwd);
pwd->cleartext = False;
pwd->null_pwd = True;
pwd->crypted = False;
}
/****************************************************************************
Stores a cleartext password.
****************************************************************************/
void pwd_set_cleartext(struct pwd_info *pwd, char *clr)
{
pwd_init(pwd);
push_ascii_fstring(pwd->password, clr);
pwd->cleartext = True;
pwd->null_pwd = False;
pwd->crypted = False;
pwd_make_lm_nt_16(pwd, clr);
}
/****************************************************************************
Gets a cleartext password.
****************************************************************************/
void pwd_get_cleartext(struct pwd_info *pwd, char *clr)
{
if (pwd->cleartext)
fstrcpy(clr, pwd->password);
else
clr[0] = 0;
}
/****************************************************************************
Stores lm and nt hashed passwords.
****************************************************************************/
void pwd_set_lm_nt_16(struct pwd_info *pwd, uchar lm_pwd[16], uchar nt_pwd[16])
{
pwd_init(pwd);
if (lm_pwd)
memcpy(pwd->smb_lm_pwd, lm_pwd, 16);
else
memset((char *)pwd->smb_lm_pwd, '\0', 16);
if (nt_pwd)
memcpy(pwd->smb_nt_pwd, nt_pwd, 16);
else
memset((char *)pwd->smb_nt_pwd, '\0', 16);
pwd->null_pwd = False;
pwd->cleartext = False;
pwd->crypted = False;
}
/****************************************************************************
Gets lm and nt hashed passwords.
****************************************************************************/
void pwd_get_lm_nt_16(struct pwd_info *pwd, uchar lm_pwd[16], uchar nt_pwd[16])
{
if (lm_pwd != NULL)
memcpy(lm_pwd, pwd->smb_lm_pwd, 16);
if (nt_pwd != NULL)
memcpy(nt_pwd, pwd->smb_nt_pwd, 16);
}
/****************************************************************************
Makes lm and nt hashed passwords.
****************************************************************************/
void pwd_make_lm_nt_16(struct pwd_info *pwd, char *clr)
{
pstring dos_passwd;
pwd_init(pwd);
push_ascii_pstring(dos_passwd, clr);
nt_lm_owf_gen(dos_passwd, pwd->smb_nt_pwd, pwd->smb_lm_pwd);
pwd->null_pwd = False;
pwd->cleartext = False;
pwd->crypted = False;
}
/****************************************************************************
Makes lm and nt OWF crypts.
****************************************************************************/
void pwd_make_lm_nt_owf(struct pwd_info *pwd, uchar cryptkey[8])
{
#ifdef DEBUG_PASSWORD
DEBUG(100,("client cryptkey: "));
dump_data(100, (char *)cryptkey, 8);
#endif
SMBOWFencrypt(pwd->smb_nt_pwd, cryptkey, pwd->smb_nt_owf);
#ifdef DEBUG_PASSWORD
DEBUG(100,("nt_owf_passwd: "));
dump_data(100, (char *)pwd->smb_nt_owf, sizeof(pwd->smb_nt_owf));
DEBUG(100,("nt_sess_pwd: "));
dump_data(100, (char *)pwd->smb_nt_pwd, sizeof(pwd->smb_nt_pwd));
#endif
SMBOWFencrypt(pwd->smb_lm_pwd, cryptkey, pwd->smb_lm_owf);
#ifdef DEBUG_PASSWORD
DEBUG(100,("lm_owf_passwd: "));
dump_data(100, (char *)pwd->smb_lm_owf, sizeof(pwd->smb_lm_owf));
DEBUG(100,("lm_sess_pwd: "));
dump_data(100, (char *)pwd->smb_lm_pwd, sizeof(pwd->smb_lm_pwd));
#endif
pwd->crypted = True;
}
/****************************************************************************
Gets lm and nt crypts.
****************************************************************************/
void pwd_get_lm_nt_owf(struct pwd_info *pwd, uchar lm_owf[24], uchar nt_owf[24])
{
if (lm_owf != NULL)
memcpy(lm_owf, pwd->smb_lm_owf, 24);
if (nt_owf != NULL)
memcpy(nt_owf, pwd->smb_nt_owf, 24);
}
|
