COMMON WEAKNESS ENUMERATIONDraft

CWE-1193

Power-On of Untrusted Execution Core Before Enabling Fabric Access Control

The product enables components that contain untrusted firmware before memory and fabric access controls have been enabled.

Soyutlama

Base

Yapı

Simple

Sömürü İhtimali

Medium

Problemi anla

Problem nedir?

The product enables components that contain untrusted firmware before memory and fabric access controls have been enabled.

Genişletilmiş açıklama

After initial reset, System-on-Chip (SoC) fabric access controls and other security features need to be programmed by trusted firmware as part of the boot sequence. If untrusted IPs or peripheral microcontrollers are enabled first, then the untrusted component can master transactions on the hardware bus and target memory or other assets to compromise the SoC boot firmware.

Kök neden

Problem nasıl ve ne zaman oluşur?

Yaşam döngüsü evresi

Architecture and Design

Risk

Başarılı sömürü neye yol açar?

Bypass Protection Mechanism

Etkilenen güvenlik alanları: Access Control

An untrusted component can master transactions on the HW bus and target memory or other assets to compromise the SoC boot firmware.

Savunma

Nasıl önlenir ve çözülür?

Architecture and Design

Mimari ve tasarım yaklaşımı

Detay
The boot sequence should enable fabric access controls and memory protections before enabling third-party hardware IPs and peripheral microcontrollers that use untrusted firmware.