이름: Improper Isolation of Shared Resources in Network On Chip (NoC)

The Network On Chip (NoC) does not isolate or incorrectly isolates its on-chip-fabric and internal resources such that they are shared between trusted and untrusted agents, creating timing channels.

일반 정보

배경 세부 정보

취약점 도입 방식

Architecture and Design
Implementation

적용 가능한 플랫폼

언어

클래스: Not Language-Specific (Undetermined)

운영 체제

클래스: Not OS-Specific (Undetermined)

아키텍처

클래스: Not Architecture-Specific (Undetermined)

기술

이름: Security Hardware (Undetermined)
클래스: Not Technology-Specific (Undetermined)

일반적인 결과

범위	영향	가능성
Confidentiality Availability	DoS: Resource Consumption (Other), Varies by Context, Other 참고: Attackers may infer data that belongs to a trusted agent. The methods used to perform this attack may result in noticeably increased resource consumption.	Medium

관찰된 예시

참고 자료	설명
CVE-2021-33096	Improper isolation of shared resource in a network-on-chip leads to denial of service

잠재적 완화 방법

Phases : Architecture and Design // Implementation
Implement priority-based arbitration inside the NoC and have dedicated buffers or virtual channels for routing secret data from trusted agents.

탐지 방법

Manual Analysis

Providing marker flags to send through the interfaces coupled with examination of which users are able to read or manipulate the flags will help verify that the proper isolation has been achieved and is effective.
효과성 : Moderate

취약점 매핑 메모

근거 : 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.
댓글 : 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.

관련 공격 패턴

CAPEC ID	공격 패턴 이름
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.

참고 자료

REF-1155

SurfNoC: A Low Latency and Provably Non-Interfering Approach to Secure Networks-On-Chip
Hassan M. G. Wassel, Ying Gao, Jason K. Oberg, Tedd Huffmire, Ryan Kastner, Frederic T. Chong, Timothy Sherwood.
http://cseweb.ucsd.edu/~kastner/papers/isca13-surfNOC.pdf

REF-1241

Network on a chip
Wikipedia.
https://en.wikipedia.org/wiki/Network_on_a_chip

REF-1242

A Survey of Network-on-Chip Security Attacks and Countermeasures
Subodha Charles, Prabhat Mishra.
https://dl.acm.org/doi/fullHtml/10.1145/3450964

REF-1245

Design of Secure and Trustworthy Network-on-chip Architectures
Subodha Charles.
https://www.cise.ufl.edu/research/cad/Publications/charlesThesis.pdf

제출

이름	조직	날짜	출시일	Version
Arun Kanuparthi, Hareesh Khattri, Parbati K. Manna	Intel Corporation	2020-05-23 +00:00	2020-12-10 +00:00	4.3

수정 사항

이름	조직	날짜	댓글
CWE Content Team	MITRE	2021-10-28 +00:00	updated Background_Details, Demonstrative_Examples, Description, Detection_Factors, Name, References, Relationships, Weakness_Ordinalities
CWE Content Team	MITRE	2022-04-28 +00:00	updated Applicable_Platforms, References
CWE Content Team	MITRE	2022-06-28 +00:00	updated Applicable_Platforms
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	2023-10-26 +00:00	updated Observed_Examples

CWE-1331 상세 정보

CWE-1331