CWE-1316 Detalhe

CWE-1316

Fabric-Address Map Allows Programming of Unwarranted Overlaps of Protected and Unprotected Ranges
Draft
2020-12-10
00h00 +00:00
2025-12-11
00h00 +00:00
CWE Mitre.org
Notificações para um CWE
Fique informado sobre quaisquer alterações para um CWE específico.
Gerenciar notificações

Nome: Fabric-Address Map Allows Programming of Unwarranted Overlaps of Protected and Unprotected Ranges

The address map of the on-chip fabric has protected and unprotected regions overlapping, allowing an attacker to bypass access control to the overlapping portion of the protected region.

Informações Gerais

Modos de Introdução

Architecture and Design
Implementation

Plataformas Aplicáveis

Linguagem

Class: Not Language-Specific (Undetermined)

Sistemas Operacionais

Class: Not OS-Specific (Undetermined)

Arquiteturas

Class: Not Architecture-Specific (Undetermined)

Tecnologias

Name: Bus/Interface Hardware (Undetermined)
Class: Not Technology-Specific (Undetermined)

Consequências Comuns

Escopo Impacto Probabilidade
Confidentiality
Integrity
Access Control
Authorization		Bypass Protection Mechanism, Read Memory, Modify MemoryMedium

Exemplos Observados

Referências Descrição

CVE-2009-4419

Attacker can modify MCHBAR register to overlap with an attacker-controlled region, which modification prevents the SENTER instruction from properly applying VT-d protection while a Measured Launch Environment is being launched.

Mitigações Potenciais

Phases : Architecture and Design
When architecting the address map of the chip, ensure that protected and unprotected ranges are isolated and do not overlap. When designing, ensure that ranges hardcoded in Register-Transfer Level (RTL) do not overlap.
Phases : Implementation
Ranges configured by firmware should not overlap. If overlaps are mandatory because of constraints such as a limited number of registers, then ensure that no assets are present in the overlapped portion.
Phases : Testing
Validate mitigation actions with robust testing.

Métodos de Detecção

Automated Dynamic Analysis

Review address map in specification to see if there are any overlapping ranges.
Eficácia : High

Manual Static Analysis

Negative testing of access control on overlapped ranges.
Eficácia : High

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-456 Infected Memory
An adversary inserts malicious logic into memory enabling them to achieve a negative impact. This logic is often hidden from the user of the system and works behind the scenes to achieve negative impacts. This pattern of attack focuses on systems already fielded and used in operation as opposed to systems that are still under development and part of the supply chain.
CAPEC-679 Exploitation of Improperly Configured or Implemented Memory Protections

Notas

As of CWE 4.6, CWE-1260 and CWE-1316 are siblings under view 1000, but CWE-1260 might be a parent of CWE-1316. More analysis is warranted.

Referências

REF-1137

BARing the System - New vulnerabilities in Coreboot & UEFI-based Systems
Yuriy Bulygin, Oleksandr Bazhaniuk, Andrew Furtak, John Loucaides, Mikhail Gorobets.
https://www.c7zero.info/stuff/REConBrussels2017_BARing_the_system.pdf

Submissão

Nome Organização Data Data de lançamento Version
Arun Kanuparthi, Hareesh Khattri, Parbati Kumar Manna Intel Corporation 2020-06-01 +00:00 2020-12-10 +00:00 4.3

Modificações

Nome Organização Data Comentário
CWE Content Team MITRE 2021-10-28 +00:00 updated Maintenance_Notes
CWE Content Team MITRE 2022-04-28 +00:00 updated Applicable_Platforms, Related_Attack_Patterns
CWE Content Team MITRE 2022-06-28 +00:00 updated Applicable_Platforms
CWE Content Team MITRE 2022-10-13 +00:00 updated References
CWE Content Team MITRE 2023-01-31 +00:00 updated Related_Attack_Patterns
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 Weakness_Ordinalities
As informações apresentadas no CVE Find originam-se de várias fontes de referência cuidadosamente selecionadas. Os dados CVE são fornecidos pela MITRE Corporation e pelo National Vulnerability Database (NVD). O catálogo de Vulnerabilidades Conhecidas Exploradas (KEV) é proveniente da Cybersecurity and Infrastructure Security Agency (CISA), enquanto as pontuações EPSS vêm do FIRST.org. Além disso, os dados sobre fraquezas de software (CWE) e padrões de ataque comuns (CAPEC) são mantidos pela MITRE Corporation, e as informações sobre configurações de hardware e software (CPE) são fornecidas pelo NVD.