CWE-201: Insertion of Sensitive Information Into Sent Data
CWE版本: 4.18
更新日期: 2025-09-09
弱点描述
The code transmits data to another actor, but a portion of the data includes sensitive information that should not be accessible to that actor.
常见后果
影响范围: Confidentiality
技术影响: Read Files or Directories Read Memory Read Application Data
说明: Sensitive data may be exposed to attackers.
潜在缓解措施
阶段: Requirements
描述: Specify which data in the software should be regarded as sensitive. Consider which types of users should have access to which types of data.
阶段: Implementation
描述: Ensure that any possibly sensitive data specified in the requirements is verified with designers to ensure that it is either a calculated risk or mitigated elsewhere. Any information that is not necessary to the functionality should be removed in order to lower both the overhead and the possibility of security sensitive data being sent.
阶段: System Configuration
描述: Setup default error messages so that unexpected errors do not disclose sensitive information.
阶段: Architecture and Design
策略: Separation of Privilege
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
观察示例
参考: CVE-2022-0708
Collaboration platform does not clear team emails in a response, allowing leak of email addresses
引入模式
| 阶段 | 说明 |
|---|---|
| Architecture and Design | - |
| Implementation | REALIZATION: This weakness is caused during implementation of an architectural security tactic. |
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 |
|---|---|---|---|
| CLASP | - | Accidental leaking of sensitive information through sent data | - |
关键信息
CWE ID: CWE-201
抽象级别: Base
结构: Simple
状态: Draft