CWE-524: Use of Cache Containing Sensitive Information
CWE版本: 4.18
更新日期: 2025-09-09
弱点描述
The code uses a cache that contains sensitive information, but the cache can be read by an actor outside of the intended control sphere.
扩展描述
Applications may use caches to improve efficiency when communicating with remote entities or performing intensive calculations. A cache maintains a pool of objects, threads, connections, pages, financial data, passwords, or other resources to minimize the time it takes to initialize and access these resources. If the cache is accessible to unauthorized actors, attackers can read the cache and obtain this sensitive information.
常见后果
影响范围: Confidentiality
技术影响: Read Application Data
潜在缓解措施
阶段: Architecture and Design
描述: Protect information stored in cache.
阶段: Architecture and Design
描述: Do not store unnecessarily sensitive information in the cache.
阶段: Architecture and Design
描述: Consider using encryption in the cache.
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 | - |