Ensure a Login Window Banner Exists

MoyenneNiveau 2Automatiséemacos

Description

A Login window banner warning informs the user that the system is reserved for authorized use only. It enforces an acknowledgment by the user that they have been informed of the use policy in the banner if required. The system recognizes either the .txt and the .rtf formats. Audit: A /Library/Security/PolicyBanner.* file must exist and its mode must have 4 as the third digit.

Méthode de vérification

Méthode d'audit: Commande shell

shell

set -- /Library/Security/PolicyBanner.*
[ -e "$1" ] || exit 1
for f in "$@"; do
  p=$(/usr/bin/stat -f %A "$f") || exit 1
  case "$p" in ??4) ;; *) echo "$f mode $p"; exit 0;; esac
done
echo compliant

Sortie attendue: compliant

Méthode de correction

Méthode de correction: Recommandation ou correctif d'infrastructure

Terminal: sudo /bin/chmod o+r /Library/Security/PolicyBanner.txt ; sudo /bin/chmod o+r /Library/Security/PolicyBanner.rtf.

Propriétés

Systèmes d'exploitation: macos-15
Étiquettes: macossystem-access
Référence: CIS Apple macOS 15.0 Sequoia Benchmark v2.1.0 - 5.8 Ensure a Login Window Banner Exists

Vérifier cet hôte

Exécutez cette commande sur une machine que vous êtes autorisé à auditer. L'analyse est en lecture seule.

shell

tmaegis scan --target macos --level 2