名前: Improper Isolation of Shared Resources on System-on-a-Chip (SoC)

The System-On-a-Chip (SoC) does not properly isolate shared resources between trusted and untrusted agents.

一般情報

導入モード

Architecture and Design
Implementation

適用可能なプラットフォーム

言語

クラス： Not Language-Specific (Undetermined)

テクノロジー

クラス： System on Chip (Undetermined)

一般的な結果

スコープ	影響	可能性
Access Control	Bypass Protection Mechanism 注記：If resources being used by a trusted user are shared with an untrusted user, the untrusted user may be able to modify the functionality of the shared resource of the trusted user.
Integrity	Quality Degradation 注記：The functionality of the shared resource may be intentionally degraded.

観察された例

参考文献	説明
CVE-2020-8698	Processor has improper isolation of shared resources allowing for information disclosure.
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].

潜在的な緩和策

Phases : Architecture and Design

検出方法

Automated Dynamic Analysis

有効性 : High

脆弱性マッピングノート

理由 : 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.
コメント : 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.

関連する攻撃パターン

CAPEC ID	攻撃パターン名
CAPEC-124	Shared Resource Manipulation An adversary exploits a resource shared between multiple applications, an application pool or hardware pin multiplexing to affect behavior. Resources may be shared between multiple applications or between multiple threads of a single application. Resource sharing is usually accomplished through mutual access to a single memory location or multiplexed hardware pins. If an adversary can manipulate this shared resource (usually by co-opting one of the applications or threads) the other applications or threads using the shared resource will often continue to trust the validity of the compromised shared resource and use it in their calculations. This can result in invalid trust assumptions, corruption of additional data through the normal operations of the other users of the shared resource, or even cause a crash or compromise of the sharing applications.

参考文献

REF-1036

Ghost in the PLC Designing an Undetectable Programmable Logic Controller Rootkit via Pin Control Attack
Ali Abbasi and Majid Hashemi.
https://www.blackhat.com/docs/eu-16/materials/eu-16-Abbasi-Ghost-In-The-PLC-Designing-An-Undetectable-Programmable-Logic-Controller-Rootkit-wp.pdf

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/

登録情報

名前	組織	日付	リリース日	Version
Arun Kanuparthi, Hareesh Khattri, Parbati Kumar Manna, Narasimha Kumar V Mangipudi	Intel Corporation	2019-10-15 +00:00	2020-02-24 +00:00	4.0

変更履歴

名前	組織	日付	コメント
CWE Content Team	MITRE	2020-08-20 +00:00	updated Common_Consequences, Description, Name, Potential_Mitigations, Related_Attack_Patterns, Relationships
CWE Content Team	MITRE	2020-12-10 +00:00	updated Relationships
CWE Content Team	MITRE	2021-07-20 +00:00	updated Demonstrative_Examples
CWE Content Team	MITRE	2021-10-28 +00:00	updated Description, Observed_Examples, References, Relationships, Weakness_Ordinalities
CWE Content Team	MITRE	2022-10-13 +00:00	updated Detection_Factors
CWE Content Team	MITRE	2023-04-27 +00:00	updated Observed_Examples, Relationships
CWE Content Team	MITRE	2023-06-29 +00:00	updated Mapping_Notes, Relationships
CWE Content Team	MITRE	2025-04-03 +00:00	updated Demonstrative_Examples
CWE Content Team	MITRE	2025-09-09 +00:00	updated Relationships
CWE Content Team	MITRE	2026-10-28 +00:00	updated Dimensions

CWE-1189 詳細

CWE-1189