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
|
/*-
* Copyright (c) 2007 Robert M. M. Watson
* All rights reserved.
*
* This software was developed by Robert N. M. Watson for the TrustedBSD
* Project.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR, NCIRCLE NETWORK SECURITY,
* INC., OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
/*
* Confirm that various UID/GID/etc-related system calls require root
* privilege in the absense of any saved/real/etc variations in the
* credential. It would be nice to also check cases where those bits of the
* credential are more interesting.
*
* XXXRW: Add support for testing more diverse real/saved scenarios.
*/
#include <sys/types.h>
#include <err.h>
#include <errno.h>
#include <stdio.h>
#include <unistd.h>
#include "main.h"
int
priv_cred_setup(int asroot, int injail, struct test *test)
{
return (0);
}
void
priv_cred_setuid(int asroot, int injail, struct test *test)
{
int error;
error = setuid(UID_OTHER);
if (asroot && injail)
expect("priv_setuid(asroot, injail)", error, 0, 0);
if (asroot && !injail)
expect("priv_setuid(asroot, !injail)", error, 0, 0);
if (!asroot && injail)
expect("priv_setuid(!asroot, injail)", error, -1, EPERM);
if (!asroot && !injail)
expect("priv_setuid(!asroot, !injail)", error, -1, EPERM);
}
void
priv_cred_seteuid(int asroot, int injail, struct test *test)
{
int error;
error = seteuid(UID_OTHER);
if (asroot && injail)
expect("priv_seteuid(asroot, injail)", error, 0, 0);
if (asroot && !injail)
expect("priv_seteuid(asroot, !injail)", error, 0, 0);
if (!asroot && injail)
expect("priv_seteuid(!asroot, injail)", error, -1, EPERM);
if (!asroot && !injail)
expect("priv_seteuid(!asroot, !injail)", error, -1, EPERM);
}
void
priv_cred_setgid(int asroot, int injail, struct test *test)
{
int error;
error = setgid(GID_OTHER);
if (asroot && injail)
expect("priv_setgid(asroot, injail)", error, 0, 0);
if (asroot && !injail)
expect("priv_setgid(asroot, !injail)", error, 0, 0);
if (!asroot && injail)
expect("priv_setgid(!asroot, injail)", error, -1, EPERM);
if (!asroot && !injail)
expect("priv_setgid(!asroot, !injail)", error, -1, EPERM);
}
void
priv_cred_setegid(int asroot, int injail, struct test *test)
{
int error;
error = setegid(GID_OTHER);
if (asroot && injail)
expect("priv_setegid(asroot, injail)", error, 0, 0);
if (asroot && !injail)
expect("priv_setegid(asroot, !injail)", error, 0, 0);
if (!asroot && injail)
expect("priv_setegd(!asroot, injail)", error, -1, EPERM);
if (!asroot && !injail)
expect("priv_setegid(!asroot, !injail)", error, -1, EPERM);
}
static const gid_t gidset[] = {GID_WHEEL, GID_OTHER};
static const int gidset_len = sizeof(gidset) / sizeof(gid_t);
void
priv_cred_setgroups(int asroot, int injail, struct test *test)
{
int error;
error = setgroups(gidset_len, gidset);
if (asroot && injail)
expect("priv_setgroups(asroot, injail)", error, 0, 0);
if (asroot && !injail)
expect("priv_setgroups(asroot, !injail)", error, 0, 0);
if (!asroot && injail)
expect("priv_setgroups(!asroot, injail)", error, -1, EPERM);
if (!asroot && !injail)
expect("priv_setgroups(!asroot, !injail)", error, -1, EPERM);
}
void
priv_cred_setreuid(int asroot, int injail, struct test *test)
{
int error;
error = setreuid(UID_OTHER, UID_OTHER);
if (asroot && injail)
expect("priv_setreuid(asroot, injail)", error, 0, 0);
if (asroot && !injail)
expect("priv_setreuid(asroot, !injail)", error, 0, 0);
if (!asroot && injail)
expect("priv_setreuid(!asroot, injail)", error, -1, EPERM);
if (!asroot && !injail)
expect("priv_setreuid(!asroot, !injail)", error, -1, EPERM);
}
void
priv_cred_setregid(int asroot, int injail, struct test *test)
{
int error;
error = setregid(GID_OTHER, GID_OTHER);
if (asroot && injail)
expect("priv_setregid(asroot, injail)", error, 0, 0);
if (asroot && !injail)
expect("priv_setregid(asroot, !injail)", error, 0, 0);
if (!asroot && injail)
expect("priv_setregid(!asroot, injail)", error, -1, EPERM);
if (!asroot && !injail)
expect("priv_setregid(!asroot, !injail)", error, -1, EPERM);
}
void
priv_cred_setresuid(int asroot, int injail, struct test *test)
{
int error;
error = setresuid(UID_OTHER, UID_OTHER, UID_OTHER);
if (asroot && injail)
expect("priv_setresuid(asroot, injail)", error, 0, 0);
if (asroot && !injail)
expect("priv_setresuid(asroot, !injail)", error, 0, 0);
if (!asroot && injail)
expect("priv_setresuid(!asroot, injail)", error, -1, EPERM);
if (!asroot && !injail)
expect("priv_setresuid(!asroot, !injail)", error, -1, EPERM);
}
void
priv_cred_setresgid(int asroot, int injail, struct test *test)
{
int error;
error = setresgid(GID_OTHER, GID_OTHER, GID_OTHER);
if (asroot && injail)
expect("priv_setresgid(asroot, injail)", error, 0, 0);
if (asroot && !injail)
expect("priv_setresgid(asroot, !injail)", error, 0, 0);
if (!asroot && injail)
expect("priv_setresgid(!asroot, injail)", error, -1, EPERM);
if (!asroot && !injail)
expect("priv_setresgid(!asroot, !injail)", error, -1, EPERM);
}
void
priv_cred_cleanup(int asroot, int injail, struct test *test)
{
}
|
