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os_world_writable_library_folder_configure Ensure No World Writable Files Exist in the Library Folder

NIST macOS Security Compliance Project Sequoia Guidance, Revision 4.0 (be5491f)
All changes in this version
first version loaded macOS

Title

Ensure No World Writable Files Exist in the Library Folder

Control

/usr/bin/find /Library -type d -perm -002 ! -perm -1000 ! -xattrname com.apple.rootless 2>/dev/null | /usr/bin/wc -l | /usr/bin/xargs

Discussion

Folders in /System/Volumes/Data/Library _MUST_ not be world-writable.

NOTE: Some vendors are known to create world-writable folders to the System Library folder. You may need to add more exclusions to this check and fix to match your environment.

Fix

[source,bash]
----
IFS=$'\n'
for libPermissions in $(/usr/bin/find /Library -type d -perm -002 ! -perm -1000 ! -xattrname com.apple.rootless 2>/dev/null); do
/bin/chmod -R o-w "$libPermissions"
done
----