CWE-1224 Detalhe

CWE-1224

Improper Restriction of Write-Once Bit Fields
Incomplete
2020-02-24
00h00 +00:00
2025-12-11
00h00 +00:00
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Nome: Improper Restriction of Write-Once Bit Fields

The hardware design control register "sticky bits" or write-once bit fields are improperly implemented, such that they can be reprogrammed by software.

Informações Gerais

Modos de Introdução

Architecture and Design
Implementation : Such issues could be introduced during implementation of hardware design, since IP parameters and defaults are defined in HDL code and identified later during Testing or System Configuration phases.

Plataformas Aplicáveis

Linguagem

Name: Verilog (Undetermined)
Name: VHDL (Undetermined)

Tecnologias

Class: System on Chip (Undetermined)

Consequências Comuns

Escopo Impacto Probabilidade
Confidentiality
Integrity
Availability
Access Control
Varies by Context

Note: System configuration cannot be programmed in a secure way.

Mitigações Potenciais

Phases : Architecture and Design
During hardware design, all register write-once or sticky fields must be evaluated for proper configuration.

Métodos de Detecção

Automated Analysis

Use automated tools to test that values are not reprogrammable and that write-once fields lock on writing zeros.

Notas de Mapeamento de Vulnerabilidade

Justificativa : 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.
Comentário : 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.

Padrões de Ataque Relacionados

CAPEC-ID Nome do Padrão de Ataque
CAPEC-680 Exploitation of Improperly Controlled Registers

Submissão

Nome Organização Data Data de lançamento Version
Arun Kanuparthi, Hareesh Khattri, Parbati Kumar Manna, Narasimha Kumar V Mangipudi Intel Corporation 2019-12-12 +00:00 2020-02-24 +00:00 4.0

Modificações

Nome Organização Data Comentário
CWE Content Team MITRE 2020-08-20 +00:00 updated Related_Attack_Patterns
CWE Content Team MITRE 2022-04-28 +00:00 updated Related_Attack_Patterns
CWE Content Team MITRE 2022-10-13 +00:00 updated Demonstrative_Examples
CWE Content Team MITRE 2023-04-27 +00:00 updated Relationships
CWE Content Team MITRE 2023-06-29 +00:00 updated Mapping_Notes
CWE Content Team MITRE 2025-12-11 +00:00 updated Detection_Factors, Potential_Mitigations, Weakness_Ordinalities