Ensure a Login Window Banner Exists

SedangLevel 2Otomatismacos

Deskripsi

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. An access warning may reduce a casual attacker's tendency to target the system. Access warnings may also aid in the prosecution of an attacker by evincing the attacker's knowledge of the system's private status, acceptable use policy, and authorization requirements.

Cara pemeriksaan

Metode audit: Perintah 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

Output yang diharapkan: compliant

Cara perbaikan

Metode perbaikan: Panduan atau patch infrastruktur

Terminal Method: Run the following commands to create or edit the login window text and set the proper permissions: Edit (or create) a PolicyBanner.txt or PolicyBanner.rtf file, in the /Library/Security/ folder, to include the required login window banner text. Perform the following to set permissions on the policy banner file: % /usr/bin/sudo /bin/chmod o+r /Library/Security/PolicyBanner.txt % /usr/bin/sudo /bin/chmod o+r /Library/Security/PolicyBanner.rtf Note: If your organization uses an .rtfd file to set the policy banner, run % /usr/bin/sudo /bin/chmod o+rx /Library/Security/PolicyBanner.rtfd to update the permissions.

Properti

Sistem operasi: macos-14
Tag: loggingmacossonoma
Referensi: CIS Apple macOS 14.0 Sonoma Benchmark v3.1.0 - 5.8 Ensure a Login Window Banner Exists

Periksa host ini

Jalankan ini pada mesin yang diizinkan untuk Anda audit. Pemindaian bersifat hanya baca.

shell

tmaegis scan --target macos --level 2