CWE-1317 Details

CWE-1317

Improper Access Control in Fabric Bridge
Draft
2020-12-10
00h00 +00:00
2025-12-11
00h00 +00:00
CWE Mitre.org
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Name: Improper Access Control in Fabric Bridge

The product uses a fabric bridge for transactions between two Intellectual Property (IP) blocks, but the bridge does not properly perform the expected privilege, identity, or other access control checks between those IP blocks.

Allgemeine Informationen

Einführungsmodi

Architecture and Design
Implementation

Anwendbare Plattformen

Sprache

Class: Not Language-Specific (Undetermined)

Betriebssysteme

Class: Not OS-Specific (Undetermined)

Architekturen

Class: Not Architecture-Specific (Undetermined)

Technologien

Name: Processor Hardware (Undetermined)
Class: Not Technology-Specific (Undetermined)

Häufige Konsequenzen

Bereich Auswirkung Wahrscheinlichkeit
Confidentiality
Integrity
Access Control
Availability		DoS: Crash, Exit, or Restart, Bypass Protection Mechanism, Read Memory, Modify MemoryMedium

Beobachtete Beispiele

Referenzen Beschreibung

CVE-2019-6260

Baseboard Management Controller (BMC) device implements Advanced High-performance Bus (AHB) bridges that do not require authentication for arbitrary read and write access to the BMC's physical address space from the host, and possibly the network [REF-1138].

Mögliche Gegenmaßnahmen

Phases : Architecture and Design
Ensure that the design includes provisions for access-control checks in the bridge for both upstream and downstream transactions.
Phases : Implementation
Implement access-control checks in the bridge for both upstream and downstream transactions.

Erkennungsmethoden

Simulation / Emulation

RTL simulation to ensure that bridge-access controls are implemented properly.
Wirksamkeit : High

Formal Verification

Formal verification of bridge RTL to ensure that access control cannot be bypassed.
Wirksamkeit : High

Hinweise zur Schwachstellen-Zuordnung

Begründung : 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.
Kommentar : 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.

Verwandte Angriffsmuster

CAPEC-ID Name des Angriffsmusters
CAPEC-122 Privilege Abuse
An adversary is able to exploit features of the target that should be reserved for privileged users or administrators but are exposed to use by lower or non-privileged accounts. Access to sensitive information and functionality must be controlled to ensure that only authorized users are able to access these resources.

Referenzen

REF-1138

CVE-2019-6260: Gaining control of BMC from the host processor
Stewart Smith.
https://www.flamingspork.com/blog/2019/01/23/cve-2019-6260:-gaining-control-of-bmc-from-the-host-processor/

REF-1381

aes0_wrapper.sv lines 72 - 78
https://github.com/HACK-EVENT/hackatdac21/blob/b9ecdf6068445d76d6bee692d163fededf7a9d9b/piton/design/chip/tile/ariane/src/aes0/aes0_wrapper.sv#L72-L78

REF-1382

clint.sv line 71
https://github.com/HACK-EVENT/hackatdac21/blob/b9ecdf6068445d76d6bee692d163fededf7a9d9b/piton/design/chip/tile/ariane/src/clint/clint.sv#L71C2-L71C36

REF-1383

Fix for clint.sv line 78
https://github.com/HACK-EVENT/hackatdac21/blob/45a004368b5a31857008834d9780536f0764f055/piton/design/chip/tile/ariane/src/clint/clint.sv#L78

Einreichung

Name Organisation Datum Veröffentlichungsdatum Version
Arun Kanuparthi, Hareesh Khattri, Parbati Kumar Manna Intel Corporation 2020-05-19 +00:00 2020-12-10 +00:00 4.3

Änderungen

Name Organisation Datum Kommentar
CWE Content Team MITRE 2021-10-28 +00:00 updated Observed_Examples
CWE Content Team MITRE 2022-04-28 +00:00 updated Applicable_Platforms
CWE Content Team MITRE 2022-06-28 +00:00 updated Applicable_Platforms
CWE Content Team MITRE 2022-10-13 +00:00 updated Demonstrative_Examples, Description, Detection_Factors, Name, Potential_Mitigations
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 2024-02-29 +00:00 updated Demonstrative_Examples, References
CWE Content Team MITRE 2025-12-11 +00:00 updated Weakness_Ordinalities
Die auf CVE Find präsentierten Informationen stammen aus mehreren sorgfältig ausgewählten Referenzquellen. CVE-Daten werden von der MITRE Corporation und der National Vulnerability Database (NVD) bereitgestellt. Der Katalog bekannter ausgenutzter Schwachstellen (KEV) stammt von der Cybersecurity and Infrastructure Security Agency (CISA), während EPSS-Scores von FIRST.org kommen. Darüber hinaus werden Daten zu Software-Schwachstellen (CWE) und häufigen Angriffsmustern (CAPEC) von der MITRE Corporation gepflegt, und Informationen zu Hardware- und Software-Konfigurationen (CPE) werden von der NVD bereitgestellt.