Szczegóły CWE-1233

CWE-1233

Security-Sensitive Hardware Controls with Missing Lock Bit Protection
Stable
2020-02-24
00h00 +00:00
2025-09-09
00h00 +00:00
CWE Mitre.org
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Nazwa: Security-Sensitive Hardware Controls with Missing Lock Bit Protection

The product uses a register lock bit protection mechanism, but it does not ensure that the lock bit prevents modification of system registers or controls that perform changes to important hardware system configuration.

Informacje ogólne

Sposoby wprowadzenia

Architecture and Design : Such issues could be introduced during hardware architecture and design and identified later during Testing or System Configuration phases.
Implementation : Such issues could be introduced during implementation and identified later during Testing or System Configuration phases.

Odpowiednie platformy

Język

Class: Not Language-Specific (Undetermined)

Systemy operacyjne

Class: Not OS-Specific (Undetermined)

Architektury

Class: Not Architecture-Specific (Undetermined)

Technologie

Class: Not Technology-Specific (Undetermined)

Typowe konsekwencje

Zakres Wpływ Prawdopodobieństwo
Access ControlModify Memory

Note: System Configuration protected by the lock bit can be modified even when the lock is set.

Zaobserwowane przykłady

Odniesienia Opis

CVE-2018-9085

Certain servers leave a write protection lock bit unset after boot, potentially allowing modification of parts of flash memory.

CVE-2014-8273

Chain: chipset has a race condition (CWE-362) between when an interrupt handler detects an attempt to write-enable the BIOS (in violation of the lock bit), and when the handler resets the write-enable bit back to 0, allowing attackers to issue BIOS writes during the timing window [REF-1237].

Potencjalne środki zaradcze

Phases : Architecture and Design // Implementation // Testing

Metody wykrywania

Manual Analysis

Set the lock bit. Attempt to modify the information protected by the lock bit. If the information is changed, implement a design fix. Retest. Also, attempt to indirectly clear the lock bit or bypass it.
Skuteczność : High

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.

Powiązane wzorce ataków

CAPEC-ID Nazwa wzorca ataku
CAPEC-176 Configuration/Environment Manipulation
An attacker manipulates files or settings external to a target application which affect the behavior of that application. For example, many applications use external configuration files and libraries - modification of these entities or otherwise affecting the application's ability to use them would constitute a configuration/environment manipulation attack.
CAPEC-680 Exploitation of Improperly Controlled Registers

Odniesienia

REF-1237

Intel BIOS locking mechanism contains race condition that enables write protection bypass
CERT Coordination Center.
https://www.kb.cert.org/vuls/id/766164/

Zgłoszenie

Nazwa Organizacja Data Data wydania Version
Arun Kanuparthi, Hareesh Khattri, Parbati Kumar Manna, Narasimha Kumar V Mangipudi Intel Corporation 2020-01-15 +00:00 2020-02-24 +00:00 4.0

Modyfikacje

Nazwa Organizacja Data Komentarz
CWE Content Team MITRE 2020-08-20 +00:00 updated Related_Attack_Patterns
CWE Content Team MITRE 2021-03-15 +00:00 updated Maintenance_Notes
CWE Content Team MITRE 2021-10-28 +00:00 updated Demonstrative_Examples, Description, Detection_Factors, Maintenance_Notes, Name, Observed_Examples, Potential_Mitigations, References, Relationships, Weakness_Ordinalities
CWE Content Team MITRE 2022-04-28 +00:00 updated Related_Attack_Patterns, Relationships
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 2025-04-03 +00:00 updated Demonstrative_Examples
CWE Content Team MITRE 2025-09-09 +00:00 updated Relationships
Informacje prezentowane na CVE Find pochodzą z kilku starannie wybranych źródeł referencyjnych. Dane CVE są dostarczane przez MITRE Corporation i Narodową Bazę Podatności (NVD). Katalog znanych eksploatowanych podatności (KEV) pochodzi z Agencji ds. Bezpieczeństwa Cyberprzestrzeni i Infrastruktury (CISA), natomiast wyniki EPSS pochodzą z FIRST.org. Ponadto dane dotyczące słabości oprogramowania (CWE) i typowych wzorców ataków (CAPEC) są utrzymywane przez MITRE Corporation, a informacje o konfiguracjach sprzętu i oprogramowania (CPE) są dostarczane przez NVD.