COMMON WEAKNESS ENUMERATIONIncomplete

CWE-1294

Insecure Security Identifier Mechanism

The System-on-Chip (SoC) implements a Security Identifier mechanism to differentiate what actions are allowed or disallowed when a transaction originates from an entity. However, the Security Identifiers are not correctly implemented.

Soyutlama

Class

Yapı

Simple

Sömürü İhtimali

Medium

Problemi anla

Problem nedir?

The System-on-Chip (SoC) implements a Security Identifier mechanism to differentiate what actions are allowed or disallowed when a transaction originates from an entity. However, the Security Identifiers are not correctly implemented.

Genişletilmiş açıklama

Systems-On-Chip (Integrated circuits and hardware engines) implement Security Identifiers to differentiate/identify actions originated from various agents. These actions could be 'read', 'write', 'program', 'reset', 'fetch', 'compute', etc. Security identifiers are generated and assigned to every agent in the System (SoC) that is either capable of generating an action or receiving an action from another agent. Every agent could be assigned a unique, Security Identifier based on its trust level or privileges. A broad class of flaws can exist in the Security Identifier process, including but not limited to missing security identifiers, improper conversion of security identifiers, incorrect generation of security identifiers, etc.

Kök neden

Problem nasıl ve ne zaman oluşur?

Yaşam döngüsü evresi

Architecture and Design

Such issues could be introduced during hardware architecture and design, then identified later during Testing or System Configuration phases.

Yaşam döngüsü evresi

Implementation

Such issues could be introduced during hardware implementation, then identified later during Testing or System Configuration phases.

Risk

Başarılı sömürü neye yol açar?

Modify MemoryRead MemoryDoS: Resource Consumption (Other)Execute Unauthorized Code or CommandsGain Privileges or Assume IdentityQuality Degradation

Etkilenen güvenlik alanları: Confidentiality, Integrity, Availability, Access Control

Savunma

Nasıl önlenir ve çözülür?

Architecture and Design

Mimari ve tasarım yaklaşımı

Detay
Security Identifier Decoders must be reviewed for design inconsistency and common weaknesses.

Implementation

Uygulama aşaması savunması

Detay
Access and programming flows must be tested in pre-silicon and post-silicon testing.