vmtools_..._selinux(8)

💖 vmtools_unconfined_selinux — the SELinux glow-up for vmtools_unconfined 💖

okay so bestie, welcome to the vmtools_unconfined_selinux(8) page, aka the manual for the vmtools_unconfined SELinux policy. this is the whole vibe, let's get into it ✨

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🌸 NAME 🌸

vmtools_unconfined_selinux — the Security Enhanced Linux Policy for the vmtools_unconfined processes. periodt. 💅

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✨ DESCRIPTION ✨

Security-Enhanced Linux secures the vmtools_unconfined processes via flexible mandatory access control. it's giving bodyguard energy fr fr. 🫶

the vmtools_unconfined processes execute with the vmtools_unconfined_t SELinux type. you can check if you have these processes running by executing the ps command with the -Z qualifier.

for example:

ps -eZ | grep vmtools_unconfined_t

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🎀 ENTRYPOINTS 🎀

the vmtools_unconfined_t SELinux type can be entered via the shell_exec_t, vmtools_unconfined_exec_t file types. iconic. 👑

the default entrypoint paths for the vmtools_unconfined_t domain are the following:

/usr/bin/d?ash, /usr/bin/ksh.*, /usr/bin/zsh.*, /usr/bin/esh, /usr/bin/bash, /usr/bin/fish, /usr/bin/mksh, /usr/bin/sash, /usr/bin/sesh, /usr/bin/tcsh, /usr/bin/yash, /usr/bin/bash2, /usr/bin/smrsh, /usr/bin/nologin, /usr/bin/scponly, /usr/bin/scponlyc, /usr/libexec/sesh, /usr/bin/git-shell, /usr/libexec/sudo/sesh, /usr/bin/cockpit-bridge, /usr/libexec/cockpit-agent, /usr/libexec/git-core/git-shell, /etc/vmware-tools(/.*)?

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🦋 PROCESS TYPES 🦋

SELinux defines process types (domains) for each process running on the system. lowkey essential.

you can see the context of a process using the -Z option to ps.

Policy governs the access confined processes have to files. SELinux vmtools_unconfined policy is very flexible allowing users to setup their vmtools_unconfined processes in as secure a method as possible. highkey flexible. 🌈

the following process types are defined for vmtools_unconfined:

vmtools_unconfined_t

Note: semanage permissive -a vmtools_unconfined_t can be used to make the process type vmtools_unconfined_t permissive. SELinux does not deny access to permissive process types, but the AVC (SELinux denials) messages are still generated. iykyk 💀

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💜 BOOLEANS 💜

SELinux policy is customizable based on least access required. vmtools_unconfined policy is extremely flexible and has several booleans that allow you to manipulate the policy and run vmtools_unconfined with the tightest access possible. slay for granular control. ✨

if you want to deny user domains applications to map a memory region as both executable and writable, this is dangerous and the executable should be reported in bugzilla, you must turn on the deny_execmem boolean. Disabled by default.

setsebool -P deny_execmem 1

if you want to control the ability to mmap a low area of the address space, as configured by /proc/sys/vm/mmap_min_addr, you must turn on the mmap_low_allowed boolean. Disabled by default.

setsebool -P mmap_low_allowed 1

if you want to disable kernel module loading, you must turn on the secure_mode_insmod boolean. Disabled by default.

setsebool -P secure_mode_insmod 1

if you want to allow unconfined executables to make their heap memory executable. Doing this is a really bad idea. Probably indicates a badly coded executable, but could indicate an attack. This executable should be reported in bugzilla, you must turn on the selinuxuser_execheap boolean. Disabled by default.

setsebool -P selinuxuser_execheap 1

if you want to allow unconfined executables to make their stack executable. This should never, ever be necessary. Probably indicates a badly coded executable, but could indicate an attack. This executable should be reported in bugzilla, you must turn on the selinuxuser_execstack boolean. Disabled by default.

setsebool -P selinuxuser_execstack 1

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🧚 MANAGED FILES 🧚

the SELinux process type vmtools_unconfined_t can manage files labeled with the following file types. The paths listed are the default paths for these file types. Note the processes UID still need to have DAC permissions. don't forget that bestie. 🔥

file_type

• all files on the system

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💅 FILE CONTEXTS 💅

SELinux requires files to have an extended attribute to define the file type.

you can see the context of a file using the -Z option to ls.

Policy governs the access confined processes have to these files. SELinux vmtools_unconfined policy is very flexible allowing users to setup their vmtools_unconfined processes in as secure a method as possible.

🌟 STANDARD FILE CONTEXT 🌟

SELinux defines the file context types for the vmtools_unconfined, if you wanted to store files with these types in a different paths, you need to execute the semanage command to specify alternate labeling and then use restorecon to put the labels on disk. literally the whole workflow. 🎀

semanage fcontext -a -t vmtools_unconfined_exec_t '/srv/vmtools_unconfined/content(/.*)?'
restorecon -R -v /srv/myvmtools_unconfined_content

Note: SELinux often uses regular expressions to specify labels that match multiple files. regex girlies rise. 🦋

the following file types are defined for vmtools_unconfined:

• vmtools_unconfined_exec_t — Set files with the vmtools_unconfined_exec_t type, if you want to transition an executable to the vmtools_unconfined_t domain.

Note: File context can be temporarily modified with the chcon command. If you want to permanently change the file context you need to use the semanage fcontext command. This will modify the SELinux labeling database. You will need to use restorecon to apply the labels. no shortcuts bestie. 💀

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👑 COMMANDS 👑

semanage fcontext can also be used to manipulate default file context mappings.

semanage permissive can also be used to manipulate whether or not a process type is permissive.

semanage module can also be used to enable/disable/install/remove policy modules.

semanage boolean can also be used to manipulate the booleans.

system-config-selinux is a GUI tool available to customize SELinux policy settings. a whole vibe if you're a visual learner. 🖥️✨

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🌸 AUTHOR 🌸

This manual page was auto-generated using sepolicy manpage. the robots did this one, not me. 🤖💖

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🌈 SEE ALSO 🌈

selinux(8), vmtools_unconfined(8), semanage(8), restorecon(8), chcon(1), sepolicy(8), setsebool(8)

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bestie, this page was brought to you by the vmtools_..._selinux(8) manual — source vmtools_unconfined, dated 26-10-06. slay, go secure those processes. 💅💖🎀