CWE-1193: Power-On of Untrusted Execution Core Before Enabling Fabric Access Control

Description

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

Extended Description

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.

ThreatScore

Threat Mapped score: 0.0

Industry: Finiancial

Threat priority: Unclassified

Observed Examples (CVEs)

No observed examples available.

Related Attack Patterns (CAPEC)

Attack TTPs

T1574.010 — Services File Permissions Weakness (persistence, privilege-escalation, defense-evasion)

Malware

BlackEnergy

Modes of Introduction

Phase	Note
None listed.

Common Consequences

Impact: Bypass Protection Mechanism — Notes: An untrusted component can master transactions on the HW bus and target memory or other assets to compromise the SoC boot firmware.

Potential Mitigations

Architecture and Design: The boot sequence should enable fabric access controls and memory protections before enabling third-party hardware IPs and peripheral microcontrollers that use untrusted firmware. (N/A)

Applicable Platforms

None listed.

Demonstrative Examples

N/A

Notes

No notes available.

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