Szczegóły CWE-1209

The reserved bits in a hardware design are not disabled prior to production. Typically, reserved bits are used for future capabilities and should not support any functional logic in the design. However, designers might covertly use these bits to debug or further develop new capabilities in production hardware. Adversaries with access to these bits will write to them in hopes of compromising hardware state.

Sposoby wprowadzenia

Architecture and Design : The Designer and Implementer have to make a conscious choice to do this.
Implementation : The Designer and Implementer have to make a conscious choice to do this.
Documentation : If documentation labels anything "for future use", "reserved", or the like, such labeling could indicate to an attacker a potential attack point.

Odpowiednie platformy

Język

Class: Not Language-Specific (Undetermined)

Systemy operacyjne

Class: Not OS-Specific (Undetermined)

Architektury

Class: Not Architecture-Specific (Undetermined)

Technologie

Class: System on Chip (Undetermined)

Typowe konsekwencje

Potencjalne środki zaradcze

Phases : Architecture and Design // Implementation
Phases : Integration

Uwagi dotyczące mapowania podatności

Uzasadnienie : This CWE entry is at the Base level of abstraction, which is a preferred level of abstraction for mapping to the root causes of vulnerabilities.
Komentarz : Carefully read both the name and description to ensure that this mapping is an appropriate fit. Do not try to 'force' a mapping to a lower-level Base/Variant simply to comply with this preferred level of abstraction.

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