CWE-90: Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')
CWE版本: 4.18
更新日期: 2025-09-09
弱点描述
The product constructs all or part of an LDAP query using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended LDAP query when it is sent to a downstream component.
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
说明: An attacker could include input that changes the LDAP query which allows unintended commands or code to be executed, allows sensitive data to be read or modified or causes other unintended behavior.
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
观察示例
参考: CVE-2021-41232
Chain: authentication routine in Go-based agile development product does not escape user name (CWE-116), allowing LDAP injection (CWE-90)
参考: CVE-2005-2301
Server does not properly escape LDAP queries, which allows remote attackers to cause a DoS and possibly conduct an LDAP injection attack.
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
技术
分类映射
| 分类名称 | 条目ID | 条目名称 | 映射适配度 |
|---|---|---|---|
| PLOVER | - | LDAP injection | - |
| OWASP Top Ten 2007 | A2 | Injection Flaws | CWE More Specific |
| WASC | 29 | LDAP Injection | - |
| Software Fault Patterns | SFP24 | Tainted input to command | - |