Ensure No World Writable Folders Exist in the System Folder

AltaNível 1Automatizadamacos

Descrição

Software sometimes insists on being installed in the /System/Volumes/Data/System Directory and has inappropriate world-writable permissions. Macs with writable files in System should be investigated forensically. A file with open writable permissions is a sign of at best a rogue application. It could also be a sign of a computer compromise and a persistent presence on the system. Folders in /System/Volumes/Data/System should not be world-writable. The audit check excludes the downloadDir and locks folders that are part of Apple's default user template.

Como é verificado

Método de auditoria: Comando shell

shell

[ -d /System/Volumes/Data/System ] || exit 1
/usr/bin/find /System/Volumes/Data/System -type d -perm -2 -ls 2>/dev/null | /usr/bin/grep -vE "downloadDir|locks" | /usr/bin/wc -l | /usr/bin/xargs

Saída esperada: 0

Como é corrigido

Método de correção: Orientação ou patch de infraestrutura

Terminal Method: Run the following command to set permissions so that folders are not world-writable in the /System folder: % IFS=$'\n' for sysPermissions in $( /usr/bin/sudo /usr/bin/find /System/Volumes/Data/System -type d -perm -2 2>/dev/null | /usr/bin/grep -vE "downloadDir|locks" ); do /bin/chmod -R o-w "$sysPermissions" done

Propriedades

Sistemas operacionais: macos-14
Tags: macossonoma
Referência: CIS Apple macOS 14.0 Sonoma Benchmark v3.1.0 - 5.1.6 Ensure No World Writable Folders Exist in the System Folder

Verificar este host

Execute isto em uma máquina que você tenha permissão para auditar. A varredura é somente leitura.

shell

tmaegis scan --target macos