CERTMONGER_UNCONFINED_SELINUX(8)

💅 certmonger_unconfined_selinux(8) — the certmonger_unconfined SELinux section, bestie edition 🎀

okay so this is from the certmonger_unconfined_selinux manual page (section 8, iykyk) and it's literally all about how SELinux handles the certmonger_unconfined processes. buckle up bestie, we're going in ✨

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🌸 NAME 🌸

certmonger_unconfined_selinux — the Security Enhanced Linux policy situation for the certmonger_unconfined processes. that's the whole vibe. 💜

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🦋 DESCRIPTION 🦋

so Security-Enhanced Linux keeps the certmonger_unconfined processes secure via flexible mandatory access control. highkey iconic of it. 👑

the certmonger_unconfined processes execute with the certmonger_unconfined_t SELinux type. you can check if you actually have these processes running by executing the ps command with the -Z qualifier. for example:

ps -eZ | grep certmonger_unconfined_t

that's it, that's the vibe check 🔍

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✨ ENTRYPOINTS ✨

the certmonger_unconfined_t SELinux type can be entered via the certmonger_unconfined_exec_t file type. so that's the doorway, fr fr 🚪

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

/usr/lib/ipa/certmonger(/.*)?

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👑 PROCESS TYPES 👑

SELinux defines process types (domains) for each process running on the system. yes, every single one. main character energy for everyone 💅

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

Policy governs the access confined processes have to files. SELinux certmonger_unconfined policy is very flexible, allowing users to setup their certmonger_unconfined processes in as secure a method as possible. we love a flexible queen 🌈

the following process types are defined for certmonger_unconfined:

certmonger_unconfined_t

Note: semanage permissive -a certmonger_unconfined_t can be used to make the process type certmonger_unconfined_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. certmonger_unconfined policy is extremely flexible and has several booleans that allow you to manipulate the policy and run certmonger_unconfined with the tightest access possible. let's go through them, no skips 🫶

• 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, you must turn on the selinuxuser_execheap boolean. 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. Disabled by default.

setsebool -P selinuxuser_execheap 1

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

setsebool -P selinuxuser_execstack 1

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🧚 MANAGED FILES 🧚

the SELinux process type certmonger_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. yeah, SELinux isn't doing everything for you 💀

file_type

• all files on the system. literally all of them. ate 💅

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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 certmonger_unconfined policy is very flexible, allowing users to setup their certmonger_unconfined processes in as secure a method as possible. yes we're saying it again, it's that flexible 🌸

⭐ STANDARD FILE CONTEXT ⭐

SELinux defines the file context types for the certmonger_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. two-step slay 🎀

semanage fcontext -a -t certmonger_unconfined_exec_t '/srv/certmonger_unconfined/content(/.*)?'
restorecon -R -v /srv/mycertmonger_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 certmonger_unconfined:

certmonger_unconfined_exec_t

• set files with the certmonger_unconfined_exec_t type, if you want to transition an executable to the certmonger_unconfined_t domain. that's the glow-up 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. a GUI!! for the visual learners 🖥️💖

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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), certmonger_unconfined(8), semanage(8), restorecon(8), chcon(1), sepolicy(8), setsebool(8)

go read those too, i believe in you 📚

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and that's the whole page bestie 🎉 this was certmonger_unconfined in the certmon..._selinux(8) era, dated 26-10-06. mwah, go configure your policy responsibly 💋💖