CWE-543 상세 정보

The product uses the singleton pattern when creating a resource within a multithreaded environment.

취약점 도입 방식

Implementation

적용 가능한 플랫폼

언어

이름: Java (Undetermined)
이름: C++ (Undetermined)

일반적인 결과

잠재적 완화 방법

Phases : Architecture and Design
Use the Thread-Specific Storage Pattern. See References.
Phases : Implementation
Do not use member fields to store information in the Servlet. In multithreading environments, storing user data in Servlet member fields introduces a data access race condition.
Phases : Implementation
Avoid using the double-checked locking pattern in language versions that cannot guarantee thread safety. This pattern may be used to avoid the overhead of a synchronized call, but in certain versions of Java (for example), this has been shown to be unsafe because it still introduces a race condition (CWE-209).

탐지 방법

Automated Static Analysis

Automated static analysis, commonly referred to as Static Application Security Testing (SAST), can find some instances of this weakness by analyzing source code (or binary/compiled code) without having to execute it. Typically, this is done by building a model of data flow and control flow, then searching for potentially-vulnerable patterns that connect "sources" (origins of input) with "sinks" (destinations where the data interacts with external components, a lower layer such as the OS, etc.)

취약점 매핑 메모

근거 : This CWE entry is at the Variant 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.

참고 자료

REF-474

Thread-Specifc Storage for C/C++
Douglas C. Schmidt, Timothy H. Harrison, Nat Pryce.
https://www.dre.vanderbilt.edu/~schmidt/PDF/TSS-pattern.pdf

REF-1534

Automated Technical Debt Measure, Version 2
OMG.
https://www.omg.org/spec/ATDM2/1.0/PDF

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