名前: Declaration of Catch for Generic Exception

Catching overly broad exceptions promotes complex error handling code that is more likely to contain security vulnerabilities.

一般情報

導入モード

Implementation

適用可能なプラットフォーム

言語

名前： C++ (Undetermined)
名前： Java (Undetermined)
名前： C# (Undetermined)
名前： Python (Undetermined)

一般的な結果

スコープ	影響	可能性
Non-Repudiation Other	Hide Activities 注記：Multiple catch blocks can get ugly and repetitive, but "condensing" catch blocks by catching a high-level class like Exception can obscure exceptions that deserve special treatment or that should not be caught at this point in the program. Catching an overly broad exception essentially defeats the purpose of a language's typed exceptions, and can become particularly dangerous if the program grows and begins to throw new types of exceptions. The new exception types will not receive any attention. A generic exception can hide details about unexpected adversary activities by making it difficult to properly troubleshoot error conditions during execution.

検出方法

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.)
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.

参考文献

REF-6

Seven Pernicious Kingdoms: A Taxonomy of Software Security Errors
Katrina Tsipenyuk, Brian Chess, Gary McGraw.
https://cwe.mitre.org/documents/sources/SevenPerniciousKingdoms.pdf

REF-44

24 Deadly Sins of Software Security
Michael Howard, David LeBlanc, John Viega.

REF-961

Automated Source Code Reliability Measure (ASCRM)
Object Management Group (OMG).
http://www.omg.org/spec/ASCRM/1.0/

REF-962

Automated Source Code Security Measure (ASCSM)
Object Management Group (OMG).
http://www.omg.org/spec/ASCSM/1.0/

REF-1541

Secure Coding Guide for Python
OpenSSF.
https://best.openssf.org/Secure-Coding-Guide-for-Python/

登録情報

名前	組織	日付	リリース日	Version
7 Pernicious Kingdoms		2006-07-19 +00:00	2006-07-19 +00:00	Draft 3

変更履歴

名前	組織	日付	コメント
Eric Dalci	Cigital	2008-07-01 +00:00	updated Time_of_Introduction
CWE Content Team	MITRE	2008-09-08 +00:00	updated Applicable_Platforms, Relationships, Other_Notes, Taxonomy_Mappings
CWE Content Team	MITRE	2008-09-24 +00:00	Removed C from Applicable_Platforms
CWE Content Team	MITRE	2008-10-14 +00:00	updated Applicable_Platforms
CWE Content Team	MITRE	2009-03-10 +00:00	updated Relationships
CWE Content Team	MITRE	2009-05-27 +00:00	updated Demonstrative_Examples
CWE Content Team	MITRE	2009-10-29 +00:00	updated Description, Other_Notes
CWE Content Team	MITRE	2011-06-01 +00:00	updated Common_Consequences
CWE Content Team	MITRE	2012-05-11 +00:00	updated References, Relationships
CWE Content Team	MITRE	2014-07-30 +00:00	updated Relationships, Taxonomy_Mappings
CWE Content Team	MITRE	2019-01-03 +00:00	updated References, Relationships, Taxonomy_Mappings
CWE Content Team	MITRE	2020-02-24 +00:00	updated References
CWE Content Team	MITRE	2023-04-27 +00:00	updated Applicable_Platforms, Description, Detection_Factors, Relationships, Time_of_Introduction
CWE Content Team	MITRE	2023-06-29 +00:00	updated Mapping_Notes
CWE Content Team	MITRE	2025-04-03 +00:00	updated Common_Consequences, Demonstrative_Examples
CWE Content Team	MITRE	2025-12-11 +00:00	updated Relationships, Weakness_Ordinalities
CWE Content Team	MITRE	2026-10-28 +00:00	updated Common_Consequences, Description, References, Relationships, Taxonomy_Mappings

CWE-396 詳細

CWE-396