CWE-188 詳細

The product makes invalid assumptions about how protocol data or memory is organized at a lower level.

導入モード

Implementation
Porting

適用可能なプラットフォーム

言語

クラス： Not Language-Specific (Undetermined)
名前： C (Undetermined)
名前： C++ (Undetermined)

一般的な結果

潜在的な緩和策

Phases : Implementation // Architecture and Design
In flat address space situations, never allow computing memory addresses as offsets from another memory address.
Phases : Architecture and Design
Fully specify protocol layout unambiguously, providing a structured grammar (e.g., a compilable yacc grammar).
Phases : Testing
Testing: Test that the implementation properly handles each case in the protocol grammar.

検出方法

Fuzzing

Fuzz testing (fuzzing) is a powerful technique for generating large numbers of diverse inputs - either randomly or algorithmically - and dynamically invoking the code with those inputs. Even with random inputs, it is often capable of generating unexpected results such as crashes, memory corruption, or resource consumption. Fuzzing effectively produces repeatable test cases that clearly indicate bugs, which helps developers to diagnose the issues.
有効性 : High

Automated Dynamic Analysis

Use tools that are integrated during compilation to insert runtime error-checking mechanisms related to memory safety errors, such as AddressSanitizer (ASan) for C/C++ [REF-1518].
有効性 : Moderate

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.

参考文献

REF-62

The Art of Software Security Assessment
Mark Dowd, John McDonald, Justin Schuh.

REF-18

The CLASP Application Security Process
Secure Software, Inc..
https://cwe.mitre.org/documents/sources/TheCLASPApplicationSecurityProcess.pdf

REF-1518

AddressSanitizer
https://clang.llvm.org/docs/AddressSanitizer.html

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