CWE-495: Private Data Structure Returned From A Public Method
CWE版本: 4.18
更新日期: 2025-09-09
弱点描述
The product has a method that is declared public, but returns a reference to a private data structure, which could then be modified in unexpected ways.
常见后果
影响范围: Integrity
技术影响: Modify Application Data
说明: The contents of the data structure can be modified from outside the intended scope.
潜在缓解措施
阶段: Implementation
描述: Declare the method private.
阶段: Implementation
描述: Clone the member data and keep an unmodified version of the data private to the object.
阶段: Implementation
描述: Use public setter methods that govern how a private member can be modified.
检测方法
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.)
有效性: High
引入模式
| 阶段 | 说明 |
|---|---|
| Implementation | - |
适用平台
编程语言
分类映射
| 分类名称 | 条目ID | 条目名称 | 映射适配度 |
|---|---|---|---|
| 7 Pernicious Kingdoms | - | Private Array-Typed Field Returned From A Public Method | - |
| Software Fault Patterns | SFP23 | Exposed Data | - |