CWE-304: Missing Critical Step in Authentication
CWE版本: 4.18
更新日期: 2025-09-09
弱点描述
The product implements an authentication technique, but it skips a step that weakens the technique.
扩展描述
Authentication techniques should follow the algorithms that define them exactly, otherwise authentication can be bypassed or more easily subjected to brute force attacks.
常见后果
影响范围: Access Control Integrity Confidentiality
技术影响: Bypass Protection Mechanism Gain Privileges or Assume Identity Read Application Data Execute Unauthorized Code or Commands
说明: This weakness can lead to the exposure of resources or functionality to unintended actors, possibly providing attackers with sensitive information or allowing attackers to execute arbitrary code.
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-2004-2163
Shared secret not verified in a RADIUS response packet, allowing authentication bypass by spoofing server replies.
参考: CVE-2005-3327
Chain: Authentication bypass by skipping the first startup step as required by the protocol.
引入模式
| 阶段 | 说明 |
|---|---|
| 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 |
|---|---|---|---|
| PLOVER | - | Missing Critical Step in Authentication | - |