Ensure Signed System Volume (SSV) Is Enabled

AltaNivel 1Automatizadamacos

Descripción

Signed System Volume is a security feature introduced in macOS 11.0 Big Sur. During system installation, a SHA-256 cryptographic hash is calculated for all immutable system files and stored in a Merkle tree which itself is hashed as the Seal. Both are stored in the metadata of the snapshot created of the System volume. The seal is verified by the boot loader at startup. macOS will not boot if system files have been tampered with. If validation fails, the user will be instructed to reinstall the operating system. During read operations for files located in the Signed System Volume, a hash is calculated and compared to the value stored in the Merkle tree. Running without Signed System Volume on a production system could run the risk of Apple software that integrates directly with macOS being modified.

Cómo se verifica

Método de auditoría: Comando de shell

shell

/usr/bin/csrutil authenticated-root status 2>/dev/null

Salida esperada: Authenticated Root status: enabled

Cómo se corrige

Método de corrección: Guía o parche de infraestructura

If SSV has been disabled, assume that the operating system has been compromised. Back up any files, and do a clean install to a known good Operating System.

Propiedades

Sistemas operativos: macos-14
Etiquetas: macossonoma
Referencia: CIS Apple macOS 14.0 Sonoma Benchmark v3.1.0 - 5.1.4 Ensure Signed System Volume (SSV) Is Enabled

Verificar este host

Ejecute esto en un equipo que tenga permiso para auditar. El escaneo es de solo lectura.

shell

tmaegis scan --target macos