CWE-91: XML Injection (aka Blind XPath Injection)
CWE版本: 4.18
更新日期: 2025-09-09
弱点描述
The product does not properly neutralize special elements that are used in XML, allowing attackers to modify the syntax, content, or commands of the XML before it is processed by an end system.
扩展描述
Within XML, special elements could include reserved words or characters such as "<", ">", """, and "&", which could then be used to add new data or modify XML syntax.
常见后果
影响范围: Confidentiality Integrity Availability
技术影响: Execute Unauthorized Code or Commands Read Application Data Modify Application Data
潜在缓解措施
阶段: Implementation
策略: Input Validation
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 | 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 | - | XML injection (aka Blind Xpath injection) | - |
| OWASP Top Ten 2007 | A2 | Injection Flaws | CWE More Specific |
| OWASP Top Ten 2004 | A6 | Injection Flaws | CWE More Specific |
| WASC | 23 | XML Injection | - |
| Software Fault Patterns | SFP24 | Tainted input to command | - |