CWE-565: Reliance on Cookies without Validation and Integrity Checking
CWE版本: 4.18
更新日期: 2025-09-09
弱点描述
The product relies on the existence or values of cookies when performing security-critical operations, but it does not properly ensure that the setting is valid for the associated user.
常见后果
影响范围: Confidentiality Integrity Availability
技术影响: Modify Application Data Execute Unauthorized Code or Commands
说明: Attackers can easily modify cookies, within the browser or by implementing the client-side code outside of the browser. Reliance on cookies without detailed validation and integrity checking can allow attackers to bypass authentication, conduct injection attacks such as SQL injection and cross-site scripting, or otherwise modify inputs in unexpected ways.
影响范围: Access Control
技术影响: Gain Privileges or Assume Identity
说明: It is dangerous to use cookies to set a user's privileges. The cookie can be manipulated to escalate an attacker's privileges to an administrative level.
潜在缓解措施
阶段: Architecture and Design
描述: Avoid using cookie data for a security-related decision.
阶段: Implementation
描述: Perform thorough input validation (i.e.: server side validation) on the cookie data if you're going to use it for a security related decision.
阶段: Architecture and Design
描述: Add integrity checks to detect tampering.
阶段: Architecture and Design
描述: Protect critical cookies from replay attacks, since cross-site scripting or other attacks may allow attackers to steal a strongly-encrypted cookie that also passes integrity checks. This mitigation applies to cookies that should only be valid during a single transaction or session. By enforcing timeouts, you may limit the scope of an attack. As part of your integrity check, use an unpredictable, server-side value that is not exposed to the client.
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-2008-5784
e-dating application allows admin privileges by setting the admin cookie to 1.
引入模式
| 阶段 | 说明 |
|---|---|
| Architecture and Design | OMISSION: This weakness is caused by missing a security tactic during the architecture and design phase. |
| Implementation | - |
分类映射
| 分类名称 | 条目ID | 条目名称 | 映射适配度 |
|---|---|---|---|
| Software Fault Patterns | SFP29 | Faulty endpoint authentication | - |
关键信息
CWE ID: CWE-565
抽象级别: Base
结构: Simple
状态: Incomplete