Ensure No World Writable Folders Exist in the Library Folder

HighLevel 2Automatedmacos

Description

Software sometimes insists on being installed in the /System/Volumes/Data/Library directory and has inappropriate world-writable permissions. This software could be compromised with the folder(s) being world-writable by unauthorized actions.

How it is checked

Audit method: Shell command

shell

[ -d /System/Volumes/Data ] || exit 1
/usr/bin/find /Library -type d -perm -002 ! -perm -1000 ! -xattrname com.apple.rootless 2>/dev/null | /usr/bin/grep -vE "/Library/AppStore" | /usr/bin/wc -l | /usr/bin/xargs

Expected output: 0

How it is fixed

Fix method: Guidance or infrastructure patch

Terminal: sudo 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.

Properties

Operating systems: macos-26
Tags: macossystem-access
Reference: CIS Apple macOS 26 Tahoe Benchmark v1.1.0 - 5.1.7 Ensure No World Writable Folders Exist in the Library Folder

Check this host

Run this on a machine you are allowed to audit. The scan is read-only.

shell

tmaegis scan --target macos --level 2