httpd_suexec_selinux(8)

1httpd_suexec_selinux(8)   SELinux Policy httpd_suexec  httpd_suexec_selinux(8)
2
3
4

NAME

6       httpd_suexec_selinux   -   Security   Enhanced  Linux  Policy  for  the
7       httpd_suexec processes
8

DESCRIPTION

10       Security-Enhanced Linux secures the httpd_suexec processes via flexible
11       mandatory access control.
12
13       The  httpd_suexec  processes  execute  with  the httpd_suexec_t SELinux
14       type. You can check if you have these processes  running  by  executing
15       the ps command with the -Z qualifier.
16
17       For example:
18
19       ps -eZ | grep httpd_suexec_t
20
21
22

ENTRYPOINTS

24       The    httpd_suexec_t   SELinux   type   can   be   entered   via   the
25       httpd_suexec_exec_t file type.
26
27       The default entrypoint paths for the httpd_suexec_t domain are the fol‐
28       lowing:
29
30       /usr/lib/apache(2)?/suexec(2)?,    /usr/lib/cgi-bin/(nph-)?cgiwrap(d)?,
31       /usr/sbin/suexec
32

PROCESS TYPES

34       SELinux defines process types (domains) for each process running on the
35       system
36
37       You can see the context of a process using the -Z option to ps
38
39       Policy  governs  the  access confined processes have to files.  SELinux
40       httpd_suexec policy is very flexible  allowing  users  to  setup  their
41       httpd_suexec processes in as secure a method as possible.
42
43       The following process types are defined for httpd_suexec:
44
45       httpd_suexec_t
46
47       Note:  semanage  permissive  -a  httpd_suexec_t can be used to make the
48       process type httpd_suexec_t permissive. SELinux does not deny access to
49       permissive  process  types,  but the AVC (SELinux denials) messages are
50       still generated.
51
52

BOOLEANS

54       SELinux  policy  is  customizable  based  on  least  access   required.
55       httpd_suexec policy is extremely flexible and has several booleans that
56       allow you to manipulate the policy and run httpd_suexec with the tight‐
57       est access possible.
58
59
60
61       If you want to allow all domains to execute in fips_mode, you must turn
62       on the fips_mode boolean. Enabled by default.
63
64       setsebool -P fips_mode 1
65
66
67
68       If you want to allow httpd to use built in scripting (usually php), you
69       must turn on the httpd_builtin_scripting boolean. Enabled by default.
70
71       setsebool -P httpd_builtin_scripting 1
72
73
74
75       If  you  want to allow HTTPD scripts and modules to connect to the net‐
76       work using TCP, you must turn on the httpd_can_network_connect boolean.
77       Disabled by default.
78
79       setsebool -P httpd_can_network_connect 1
80
81
82
83       If  you want to allow HTTPD scripts and modules to connect to databases
84       over the network, you must  turn  on  the  httpd_can_network_connect_db
85       boolean. Disabled by default.
86
87       setsebool -P httpd_can_network_connect_db 1
88
89
90
91       If  you  want  to  allow http daemon to send mail, you must turn on the
92       httpd_can_sendmail boolean. Disabled by default.
93
94       setsebool -P httpd_can_sendmail 1
95
96
97
98       If you  want  to  allow  httpd  cgi  support,  you  must  turn  on  the
99       httpd_enable_cgi boolean. Enabled by default.
100
101       setsebool -P httpd_enable_cgi 1
102
103
104
105       If  you  want to allow httpd to read home directories, you must turn on
106       the httpd_enable_homedirs boolean. Disabled by default.
107
108       setsebool -P httpd_enable_homedirs 1
109
110
111
112       If you want to allow httpd scripts and modules  execmem/execstack,  you
113       must turn on the httpd_execmem boolean. Disabled by default.
114
115       setsebool -P httpd_execmem 1
116
117
118
119       If  you  want to allow httpd to read user content, you must turn on the
120       httpd_read_user_content boolean. Disabled by default.
121
122       setsebool -P httpd_read_user_content 1
123
124
125
126       If you want to unify HTTPD to communicate with the terminal. Needed for
127       entering the passphrase for certificates at the terminal, you must turn
128       on the httpd_tty_comm boolean. Disabled by default.
129
130       setsebool -P httpd_tty_comm 1
131
132
133
134       If you want to allow httpd to access cifs file systems, you  must  turn
135       on the httpd_use_cifs boolean. Disabled by default.
136
137       setsebool -P httpd_use_cifs 1
138
139
140
141       If  you  want to allow httpd to access FUSE file systems, you must turn
142       on the httpd_use_fusefs boolean. Disabled by default.
143
144       setsebool -P httpd_use_fusefs 1
145
146
147
148       If you want to allow httpd to access nfs file systems, you must turn on
149       the httpd_use_nfs boolean. Disabled by default.
150
151       setsebool -P httpd_use_nfs 1
152
153
154
155       If  you  want  to  allow  system  to run with NIS, you must turn on the
156       nis_enabled boolean. Disabled by default.
157
158       setsebool -P nis_enabled 1
159
160
161

MANAGED FILES

163       The SELinux process type httpd_suexec_t can manage files  labeled  with
164       the  following  file types.  The paths listed are the default paths for
165       these file types.  Note the processes UID still need to have  DAC  per‐
166       missions.
167
168       cifs_t
169
170
171       fusefs_t
172
173            /var/run/user/[^/]*/gvfs
174
175       nfs_t
176
177
178

FILE CONTEXTS

180       SELinux requires files to have an extended attribute to define the file
181       type.
182
183       You can see the context of a file using the -Z option to ls
184
185       Policy governs the access  confined  processes  have  to  these  files.
186       SELinux  httpd_suexec  policy  is very flexible allowing users to setup
187       their httpd_suexec processes in as secure a method as possible.
188
189       STANDARD FILE CONTEXT
190
191       SELinux defines the file context types for  the  httpd_suexec,  if  you
192       wanted  to store files with these types in a diffent paths, you need to
193       execute the semanage command to sepecify alternate  labeling  and  then
194       use restorecon to put the labels on disk.
195
196       semanage  fcontext  -a  -t httpd_suexec_tmp_t '/srv/myhttpd_suexec_con‐
197       tent(/.*)?'
198       restorecon -R -v /srv/myhttpd_suexec_content
199
200       Note: SELinux often uses regular expressions  to  specify  labels  that
201       match multiple files.
202
203       The following file types are defined for httpd_suexec:
204
205
206
207       httpd_suexec_exec_t
208
209       -  Set  files with the httpd_suexec_exec_t type, if you want to transi‐
210       tion an executable to the httpd_suexec_t domain.
211
212
213       Paths:
214            /usr/lib/apache(2)?/suexec(2)?,       /usr/lib/cgi-bin/(nph-)?cgi‐
215            wrap(d)?, /usr/sbin/suexec
216
217
218       httpd_suexec_tmp_t
219
220       -  Set  files  with  the  httpd_suexec_tmp_t type, if you want to store
221       httpd suexec temporary files in the /tmp directories.
222
223
224
225       Note: File context can be temporarily modified with the chcon  command.
226       If  you want to permanently change the file context you need to use the
227       semanage fcontext command.  This will modify the SELinux labeling data‐
228       base.  You will need to use restorecon to apply the labels.
229
230

COMMANDS

232       semanage  fcontext  can also be used to manipulate default file context
233       mappings.
234
235       semanage permissive can also be used to manipulate  whether  or  not  a
236       process type is permissive.
237
238       semanage  module can also be used to enable/disable/install/remove pol‐
239       icy modules.
240
241       semanage boolean can also be used to manipulate the booleans
242
243
244       system-config-selinux is a GUI tool available to customize SELinux pol‐
245       icy settings.
246
247

AUTHOR

249       This manual page was auto-generated using sepolicy manpage .
250
251