1vmtools_unconfined_selinSuExL(i8n)ux Policy vmtools_uncovnmftionoelds_unconfined_selinux(8)
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6 vmtools_unconfined_selinux - Security Enhanced Linux Policy for the vm‐
7 tools_unconfined processes
8
10 Security-Enhanced Linux secures the vmtools_unconfined processes via
11 flexible mandatory access control.
12 The vmtools_unconfined processes execute with the vmtools_unconfined_t
14 SELinux type. You can check if you have these processes running by exe‐
15 cuting the ps command with the -Z qualifier.
16 For example:
18 ps -eZ | grep vmtools_unconfined_t
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24 The vmtools_unconfined_t SELinux type can be entered via the
25 shell_exec_t, vmtools_unconfined_exec_t file types.
26 The default entrypoint paths for the vmtools_unconfined_t domain are
28 the following:
29 /bin/d?ash, /bin/ksh.*, /bin/zsh.*, /usr/bin/d?ash, /usr/bin/ksh.*,
31 /usr/bin/zsh.*, /bin/esh, /bin/bash, /bin/fish, /bin/mksh, /bin/sash,
32 /bin/tcsh, /bin/yash, /bin/bash2, /usr/bin/esh, /sbin/nologin,
33 /usr/bin/bash, /usr/bin/fish, /usr/bin/mksh, /usr/bin/sash,
34 /usr/bin/tcsh, /usr/bin/yash, /usr/bin/bash2, /usr/sbin/sesh,
35 /usr/sbin/smrsh, /usr/bin/scponly, /usr/libexec/sesh, /usr/sbin/nolo‐
36 gin, /usr/bin/git-shell, /usr/sbin/scponlyc, /usr/libexec/sudo/sesh,
37 /usr/bin/cockpit-bridge, /usr/libexec/cockpit-agent, /usr/libexec/git-
38 core/git-shell, /etc/vmware-tools(/.*)?
39
41 SELinux defines process types (domains) for each process running on the
42 system
43 You can see the context of a process using the -Z option to ps
45 Policy governs the access confined processes have to files. SELinux
47 vmtools_unconfined policy is very flexible allowing users to setup
48 their vmtools_unconfined processes in as secure a method as possible.
49 The following process types are defined for vmtools_unconfined:
51 vmtools_unconfined_t
53 Note: semanage permissive -a vmtools_unconfined_t can be used to make
55 the process type vmtools_unconfined_t permissive. SELinux does not deny
56 access to permissive process types, but the AVC (SELinux denials) mes‐
57 sages are still generated.
58
61 SELinux policy is customizable based on least access required. vm‐
62 tools_unconfined policy is extremely flexible and has several booleans
63 that allow you to manipulate the policy and run vmtools_unconfined with
64 the tightest access possible.
65 If you want to deny user domains applications to map a memory region as
69 both executable and writable, this is dangerous and the executable
70 should be reported in bugzilla, you must turn on the deny_execmem bool‐
71 ean. Disabled by default.
72 setsebool -P deny_execmem 1
74 If you want to control the ability to mmap a low area of the address
78 space, as configured by /proc/sys/vm/mmap_min_addr, you must turn on
79 the mmap_low_allowed boolean. Disabled by default.
80 setsebool -P mmap_low_allowed 1
82 If you want to disable kernel module loading, you must turn on the se‐
86 cure_mode_insmod boolean. Disabled by default.
87 setsebool -P secure_mode_insmod 1
89 If you want to allow unconfined executables to make their heap memory
93 executable. Doing this is a really bad idea. Probably indicates a
94 badly coded executable, but could indicate an attack. This executable
95 should be reported in bugzilla, you must turn on the selinuxuser_ex‐
96 echeap boolean. Disabled by default.
97 setsebool -P selinuxuser_execheap 1
99 If you want to allow unconfined executables to make their stack exe‐
103 cutable. This should never, ever be necessary. Probably indicates a
104 badly coded executable, but could indicate an attack. This executable
105 should be reported in bugzilla, you must turn on the selinuxuser_exec‐
106 stack boolean. Enabled by default.
107 setsebool -P selinuxuser_execstack 1
109
113 The SELinux process type vmtools_unconfined_t can manage files labeled
114 with the following file types. The paths listed are the default paths
115 for these file types. Note the processes UID still need to have DAC
116 permissions.
117 file_type
119 all files on the system
121
124 SELinux requires files to have an extended attribute to define the file
125 type.
126 You can see the context of a file using the -Z option to ls
128 Policy governs the access confined processes have to these files.
130 SELinux vmtools_unconfined policy is very flexible allowing users to
131 setup their vmtools_unconfined processes in as secure a method as pos‐
132 sible.
133 STANDARD FILE CONTEXT
135 SELinux defines the file context types for the vmtools_unconfined, if
137 you wanted to store files with these types in a different paths, you
138 need to execute the semanage command to specify alternate labeling and
139 then use restorecon to put the labels on disk.
140 semanage fcontext -a -t vmtools_unconfined_exec_t '/srv/vmtools_uncon‐
142 fined/content(/.*)?'
143 restorecon -R -v /srv/myvmtools_unconfined_content
144 Note: SELinux often uses regular expressions to specify labels that
146 match multiple files.
147 The following file types are defined for vmtools_unconfined:
149 vmtools_unconfined_exec_t
153 - Set files with the vmtools_unconfined_exec_t type, if you want to
155 transition an executable to the vmtools_unconfined_t domain.
156 Note: File context can be temporarily modified with the chcon command.
160 If you want to permanently change the file context you need to use the
161 semanage fcontext command. This will modify the SELinux labeling data‐
162 base. You will need to use restorecon to apply the labels.
163
166 semanage fcontext can also be used to manipulate default file context
167 mappings.
168 semanage permissive can also be used to manipulate whether or not a
170 process type is permissive.
171 semanage module can also be used to enable/disable/install/remove pol‐
173 icy modules.
174 semanage boolean can also be used to manipulate the booleans
176 system-config-selinux is a GUI tool available to customize SELinux pol‐
179 icy settings.
180
183 This manual page was auto-generated using sepolicy manpage .
184
187 selinux(8), vmtools_unconfined(8), semanage(8), restorecon(8),
188 chcon(1), sepolicy(8), setsebool(8)
189vmtools_unconfined 23-10-20 vmtools_unconfined_selinux(8)