blob: 2ff45dd7acc8479231ace905f5f19e82ea9b4df7 (
plain)
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
|
;; SPDX-FileCopyrightText: © 2024 Dominick Grift <dominick.grift@defensec.nl>
;; SPDX-License-Identifier: Unlicense
(classmap state (ps read))
(classmapping state read read_file)
(classmapping state read read_lnk_file)
(classmapping state read list_dir)
(classmapping state ps (process (getattr)))
(classmapping state ps (state (read)))
(block subj
(macro type ((type ARG1))
(typeattributeset typeattr ARG1))
(blockinherit all_macro_template)
(typeattribute not_typeattr)
(typeattribute typeattr)
(typeattributeset not_typeattr (not typeattr))
(neverallow typeattr not_typeattr (process (dyntransition transition)))
(neverallow typeattr not_typeattr
(process2 (nnp_transition nosuid_transition)))
(dontaudit typeattr typeattr (process (noatsecure rlimitinh siginh)))
(block all_macro_template
(blockabstract all_macro_template)
(macro getrlimit_all_processes ((type ARG1))
(allow ARG1 typeattr (process (getrlimit))))
(macro getsched_all_processes ((type ARG1))
(allow ARG1 typeattr (process (getsched))))
(macro nnptransition_all_processes ((type ARG1))
(allow ARG1 typeattr (process2 (nnp_transition))))
(macro noatsecure_all_processes ((type ARG1))
(allow ARG1 typeattr (process (noatsecure))))
(macro nosuidtransition_all_processes ((type ARG1))
(allow ARG1 typeattr (process2 (nosuid_transition))))
(macro ps_all_states ((type ARG1))
(allow ARG1 typeattr (state (ps))))
(macro ptrace_all_processes ((type ARG1))
(allow ARG1 typeattr (process (ptrace))))
(macro read_all_states ((type ARG1))
(allow ARG1 typeattr (state (read))))
(macro readinherited_all_fifo_files ((type ARG1))
(allow ARG1 typeattr readinherited_fifo_file))
(macro readwriteinherited_all_fifo_files ((type ARG1))
(allow ARG1 typeattr readwriteinherited_fifo_file))
(macro rlimitinh_all_processes ((type ARG1))
(allow ARG1 typeattr (process (rlimitinh))))
(macro setrlimit_all_processes ((type ARG1))
(allow ARG1 typeattr (process (setrlimit))))
(macro setsched_all_processes ((type ARG1))
(allow ARG1 typeattr (process (setsched))))
(macro sigchld_all_processes ((type ARG1))
(allow ARG1 typeattr (process (sigchld))))
(macro sigkill_all_processes ((type ARG1))
(allow ARG1 typeattr (process (sigkill))))
(macro signal_all_processes ((type ARG1))
(allow ARG1 typeattr (process (signal))))
(macro signull_all_processes ((type ARG1))
(allow ARG1 typeattr (process (signull))))
(macro sigstop_all_processes ((type ARG1))
(allow ARG1 typeattr (process (sigstop))))
(macro transition_all_processes ((type ARG1))
(allow ARG1 typeattr (process (transition))))
(macro writeinherited_all_fifo_files ((type ARG1))
(allow ARG1 typeattr writeinherited_fifo_file)))
(block base_template
(blockabstract base_template)
(type subj)
(call .subj.type (subj)))
(block entry
(macro entrypoint_all_files ((type ARG1))
(allow ARG1 typeattr (file (entrypoint))))
(macro type ((type ARG1))
(typeattributeset typeattr ARG1))
(blockinherit .file.all_macro_template_files)
(typeattribute not_typeattr)
(typeattribute typeattr)
(typeattributeset not_typeattr (not typeattr))
(neverallow subj.typeattr not_typeattr (file (entrypoint))))
(block execheap
(macro type ((type ARG1))
(typeattributeset typeattr ARG1))
(typeattribute not_typeattr)
(typeattribute typeattr)
(typeattributeset not_typeattr (not typeattr))
(neverallow not_typeattr self (process (execheap))))
(block execstack
(macro type ((type ARG1))
(typeattributeset typeattr ARG1))
(typeattribute not_typeattr)
(typeattribute typeattr)
(typeattributeset not_typeattr (not typeattr))
(neverallow not_typeattr self (process (execstack))))
(block macro_template
(blockabstract macro_template)
(macro getrlimit_subj_processes ((type ARG1))
(allow ARG1 subj (process (getrlimit))))
(macro getsched_subj_processes ((type ARG1))
(allow ARG1 subj (process (getsched))))
(macro nnptransition_subj_processes ((type ARG1))
(allow ARG1 subj (process2 (nnp_transition))))
(macro noatsecure_subj_processes ((type ARG1))
(allow ARG1 subj (process (noatsecure))))
(macro nosuidtransition_subj_processes ((type ARG1))
(allow ARG1 subj (process2 (nosuid_transition))))
(macro ps_subj_states ((type ARG1))
(allow ARG1 subj (state (ps))))
(macro ptrace_subj_processes ((type ARG1))
(allow ARG1 subj (process (ptrace))))
(macro read_subj_states ((type ARG1))
(allow ARG1 subj (state (read))))
(macro readinherited_subj_fifo_files ((type ARG1))
(allow ARG1 subj readinherited_fifo_file))
(macro readwriteinherited_subj_fifo_files ((type ARG1))
(allow ARG1 subj readwriteinherited_fifo_file))
(macro rlimitinh_subj_processes ((type ARG1))
(allow ARG1 subj (process (rlimitinh))))
(macro setrlimit_subj_processes ((type ARG1))
(allow ARG1 subj (process (setrlimit))))
(macro setsched_subj_processes ((type ARG1))
(allow ARG1 subj (process (setsched))))
(macro sigchld_subj_processes ((type ARG1))
(allow ARG1 subj (process (sigchld))))
(macro sigkill_subj_processes ((type ARG1))
(allow ARG1 subj (process (sigkill))))
(macro signal_subj_processes ((type ARG1))
(allow ARG1 subj (process (signal))))
(macro signull_subj_processes ((type ARG1))
(allow ARG1 subj (process (signull))))
(macro sigstop_subj_processes ((type ARG1))
(allow ARG1 subj (process (sigstop))))
(macro transition_subj_processes ((type ARG1))
(allow ARG1 subj (process (transition))))
(macro writeinherited_subj_fifo_files ((type ARG1))
(allow ARG1 subj writeinherited_fifo_file)))
(block template
(blockabstract template)
(blockinherit .subj.base_template)
(blockinherit .subj.macro_template))
(block unconfined
(macro type ((type ARG1))
(typeattributeset typeattr ARG1))
(typeattribute typeattr)
(allow typeattr subj.entry.typeattr (file (entrypoint)))
(allow typeattr subj.typeattr (process (all)))
;; nosuid_transition should not be needed and indicates
;; misconfiguration. when used properly it is worth blocking this
;; access to prevent domain transitions on untrusted removeable
;; storage. just be sure to always mount untrusted remote storage
;; with nosuid, because otherwise this does not work.
(allow typeattr subj.typeattr (process2 (not nosuid_transition)))
(allow typeattr subj.typeattr (fifo_file (not (execmod map mounton))))
(allow typeattr subj.typeattr list_dir)
(allow typeattr subj.typeattr mounton_file)
(allow typeattr subj.typeattr read_lnk_file)
(allow typeattr subj.typeattr readwrite_file)
(call execheap.type (typeattr))
(call execstack.type (typeattr))))
(in unconfined
(call .subj.unconfined.type (typeattr)))
|
