CWE-1126
Declaration of Variable with Unnecessarily Wide Scope
2019-01-03
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特定のCWEの通知
特定のCWEの変更情報をいち早くお届けします。
名前: Declaration of Variable with Unnecessarily Wide Scope
The source code declares a variable in one scope, but the
variable is only used within a narrower scope.
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
クラス： Not Language-Specific (Undetermined)一般的な結果
| スコープ | 影響 | 可能性 |
|---|---|---|
| Other | Reduce Maintainability, Increase Analytical Complexity 注記：This issue makes it more difficult to understand and/or maintain the product, which indirectly affects security by making it more difficult or time-consuming to find and/or fix vulnerabilities. It also might make it easier to introduce vulnerabilities. |
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.)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.
登録情報
| 名前 | 組織 | 日付 | リリース日 | Version |
|---|---|---|---|---|
| CWE Content Team | MITRE | 3.2 |
変更履歴
| 名前 | 組織 | 日付 | コメント |
|---|---|---|---|
| CWE Content Team | MITRE | updated Description | |
| CWE Content Team | MITRE | updated Relationships | |
| CWE Content Team | MITRE | updated Mapping_Notes | |
| CWE Content Team | MITRE | updated Applicable_Platforms, Common_Consequences, Description, Detection_Factors, Time_of_Introduction |
