CWE-207: Observable Behavioral Discrepancy With Equivalent Products
CWE版本: 4.18
更新日期: 2025-09-09
弱点描述
The product operates in an environment in which its existence or specific identity should not be known, but it behaves differently than other products with equivalent functionality, in a way that is observable to an attacker.
扩展描述
For many kinds of products, multiple products may be available that perform the same functionality, such as a web server, network interface, or intrusion detection system. Attackers often perform "fingerprinting," which uses discrepancies in order to identify which specific product is in use. Once the specific product has been identified, the attacks can be made more customized and efficient. Often, an organization might intentionally allow the specific product to be identifiable. However, in some environments, the ability to identify a distinct product is unacceptable, and it is expected that every product would behave in exactly the same way. In these more restricted environments, a behavioral difference might pose an unacceptable risk if it makes it easier to identify the product's vendor, model, configuration, version, etc.
常见后果
影响范围: Confidentiality Access Control
技术影响: Read Application Data Bypass Protection Mechanism
观察示例
参考: CVE-2002-0208
Product modifies TCP/IP stack and ICMP error messages in unusual ways that show the product is in use.
参考: CVE-2004-2252
Behavioral infoleak by responding to SYN-FIN packets.
参考: CVE-2000-1142
Honeypot generates an error with a "pwd" command in a particular directory, allowing attacker to know they are in a honeypot system.
引入模式
| 阶段 | 说明 |
|---|---|
| Architecture and Design | - |
| Implementation | - |
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 | - | External behavioral inconsistency infoleak | - |