conman...elinux(8)

🌸 conman...elinux(8) — SELinux Policy for conman_unconfined_script 🌸

okay bestie, welcome to the conman...elinux(8) page 💅 this is the whole vibe, and yes we're getting into it.

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✨ NAME ✨

conman_unconfined_script_selinux — the Security Enhanced Linux Policy for the conman_unconfined_script processes 🫶

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🦋 DESCRIPTION 🦋

Security-Enhanced Linux secures the conman_unconfined_script processes via flexible mandatory access control. no cap, that's literally the whole point 💖

The conman_unconfined_script processes execute with the conman_unconfined_script_t SELinux type. Wanna check if you've got these processes running? literally just run the ps command with the -Z qualifier.

For example:

ps -eZ | grep conman_unconfined_script_t

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🎀 ENTRYPOINTS 🎀

The conman_unconfined_script_t SELinux type can be entered via the conman_unconfined_script_exec_t file type. that's the doorway, iykyk ✨

The default entrypoint paths for the conman_unconfined_script_t domain are the following:

/usr/share/conman/exec(/.*)?

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👑 PROCESS TYPES 👑

SELinux defines process types (domains) for each process running on the system 🔥

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

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

The following process types are defined for conman_unconfined_script:

• conman_unconfined_script_t

Note: semanage permissive -a conman_unconfined_script_t can be used to make the process type conman_unconfined_script_t permissive. SELinux does not deny access to permissive process types, but the AVC (SELinux denials) messages are still generated. so like, it's chill but it's still snitching 😭

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💅 BOOLEANS 💅

SELinux policy is customizable based on least access required. the conman_unconfined_script policy is extremely flexible and has several booleans that allow you to manipulate the policy and run conman_unconfined_script with the tightest access possible 🧚

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, and 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, and 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 conman_unconfined_script_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 👀

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. the SELinux conman_unconfined_script policy is very flexible, allowing users to setup their conman_unconfined_script processes in as secure a method as possible 🫶

STANDARD FILE CONTEXT

SELinux defines the file context types for the conman_unconfined_script. 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 ✨

semanage fcontext -a -t conman_unconfined_script_exec_t
'/srv/conman_unconfined_script/content(/.*)?'
restorecon -R -v /srv/myconman_unconfined_script_content

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

The following file types are defined for conman_unconfined_script:

• conman_unconfined_script_exec_t — Set files with the conman_unconfined_script_exec_t type, if you want to transition an executable to the conman_unconfined_script_t domain. slay, that's the transition 💅

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. temporary vs permanent, know the difference 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. yes, a GUI, for when clicking > typing 🖱️

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🌸 AUTHOR 🌸

This manual page was auto-generated using sepolicy manpage. the robots wrote it, not me 🤖💖

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⭐ SEE ALSO ⭐

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

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and that's the page bestie, go forth and label responsibly 🦋

sign-off: this was conman_unconfined_script, dated 26-10-06, from the conman...elinux(8) manual — mwah, ily, bye 💜