1vmtools_helper_selinux(8)SELinux Policy vmtools_helpervmtools_helper_selinux(8)
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6 vmtools_helper_selinux - Security Enhanced Linux Policy for the vm‐
7 tools_helper processes
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10 Security-Enhanced Linux secures the vmtools_helper processes via flexi‐
11 ble mandatory access control.
12 The vmtools_helper processes execute with the vmtools_helper_t SELinux
14 type. You can check if you have these processes running by executing
15 the ps command with the -Z qualifier.
16 For example:
18 ps -eZ | grep vmtools_helper_t
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24 The vmtools_helper_t SELinux type can be entered via the vm‐
25 tools_helper_exec_t file type.
26 The default entrypoint paths for the vmtools_helper_t domain are the
28 following:
29 /usr/bin/vmware-user-suid-wrapper
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33 SELinux defines process types (domains) for each process running on the
34 system
35 You can see the context of a process using the -Z option to ps
37 Policy governs the access confined processes have to files. SELinux
39 vmtools_helper policy is very flexible allowing users to setup their
40 vmtools_helper processes in as secure a method as possible.
41 The following process types are defined for vmtools_helper:
43 vmtools_helper_t
45 Note: semanage permissive -a vmtools_helper_t can be used to make the
47 process type vmtools_helper_t permissive. SELinux does not deny access
48 to permissive process types, but the AVC (SELinux denials) messages are
49 still generated.
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53 SELinux policy is customizable based on least access required. vm‐
54 tools_helper policy is extremely flexible and has several booleans that
55 allow you to manipulate the policy and run vmtools_helper with the
56 tightest access possible.
57 If you want to deny user domains applications to map a memory region as
61 both executable and writable, this is dangerous and the executable
62 should be reported in bugzilla, you must turn on the deny_execmem bool‐
63 ean. Disabled by default.
64 setsebool -P deny_execmem 1
66 If you want to control the ability to mmap a low area of the address
70 space, as configured by /proc/sys/vm/mmap_min_addr, you must turn on
71 the mmap_low_allowed boolean. Disabled by default.
72 setsebool -P mmap_low_allowed 1
74 If you want to disable kernel module loading, you must turn on the se‐
78 cure_mode_insmod boolean. Disabled by default.
79 setsebool -P secure_mode_insmod 1
81 If you want to allow unconfined executables to make their heap memory
85 executable. Doing this is a really bad idea. Probably indicates a
86 badly coded executable, but could indicate an attack. This executable
87 should be reported in bugzilla, you must turn on the selinuxuser_ex‐
88 echeap boolean. Disabled by default.
89 setsebool -P selinuxuser_execheap 1
91 If you want to allow unconfined executables to make their stack exe‐
95 cutable. This should never, ever be necessary. Probably indicates a
96 badly coded executable, but could indicate an attack. This executable
97 should be reported in bugzilla, you must turn on the selinuxuser_exec‐
98 stack boolean. Enabled by default.
99 setsebool -P selinuxuser_execstack 1
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105 The SELinux process type vmtools_helper_t can manage files labeled with
106 the following file types. The paths listed are the default paths for
107 these file types. Note the processes UID still need to have DAC per‐
108 missions.
109 file_type
111 all files on the system
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116 SELinux requires files to have an extended attribute to define the file
117 type.
118 You can see the context of a file using the -Z option to ls
120 Policy governs the access confined processes have to these files.
122 SELinux vmtools_helper policy is very flexible allowing users to setup
123 their vmtools_helper processes in as secure a method as possible.
124 STANDARD FILE CONTEXT
126 SELinux defines the file context types for the vmtools_helper, if you
128 wanted to store files with these types in a different paths, you need
129 to execute the semanage command to specify alternate labeling and then
130 use restorecon to put the labels on disk.
131 semanage fcontext -a -t vmtools_helper_exec_t '/srv/vmtools_helper/con‐
133 tent(/.*)?'
134 restorecon -R -v /srv/myvmtools_helper_content
135 Note: SELinux often uses regular expressions to specify labels that
137 match multiple files.
138 The following file types are defined for vmtools_helper:
140 vmtools_helper_exec_t
144 - Set files with the vmtools_helper_exec_t type, if you want to transi‐
146 tion an executable to the vmtools_helper_t domain.
147 Note: File context can be temporarily modified with the chcon command.
151 If you want to permanently change the file context you need to use the
152 semanage fcontext command. This will modify the SELinux labeling data‐
153 base. You will need to use restorecon to apply the labels.
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157 semanage fcontext can also be used to manipulate default file context
158 mappings.
159 semanage permissive can also be used to manipulate whether or not a
161 process type is permissive.
162 semanage module can also be used to enable/disable/install/remove pol‐
164 icy modules.
165 semanage boolean can also be used to manipulate the booleans
167 system-config-selinux is a GUI tool available to customize SELinux pol‐
170 icy settings.
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174 This manual page was auto-generated using sepolicy manpage .
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178 selinux(8), vmtools_helper(8), semanage(8), restorecon(8), chcon(1),
179 sepolicy(8), setsebool(8)
180vmtools_helper 23-10-20 vmtools_helper_selinux(8)