CWE-32: Path Traversal: '...' (Triple Dot)
CWE版本: 4.18
更新日期: 2025-09-09
弱点描述
The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize '...' (triple dot) sequences that can resolve to a location that is outside of that directory.
常见后果
影响范围: Confidentiality Integrity
技术影响: Read Files or Directories Modify Files or Directories
潜在缓解措施
阶段: Implementation
策略: Input Validation
有效性: High
阶段: Implementation
策略: Input Validation
描述: Inputs should be decoded and canonicalized to the application's current internal representation before being validated (CWE-180). Make sure that the application does not decode the same input twice (CWE-174). Such errors could be used to bypass allowlist validation schemes by introducing dangerous inputs after they have been checked.
观察示例
参考: CVE-2001-0467
"\..." in web server
参考: CVE-2001-0615
"..." or "...." in chat server
参考: CVE-2001-0963
"..." in cd command in FTP server
参考: CVE-2001-1193
"..." in cd command in FTP server
参考: CVE-2001-1131
"..." in cd command in FTP server
参考: CVE-2001-0480
read of arbitrary files and directories using GET or CD with "..." in Windows-based FTP server.
参考: CVE-2002-0288
read files using "." and Unicode-encoded "/" or "\" characters in the URL.
参考: CVE-2003-0313
Directory listing of web server using "..."
参考: CVE-2005-1658
Triple dot
引入模式
| 阶段 | 说明 |
|---|---|
| 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 | - | '...' (triple dot) | - |
| Software Fault Patterns | SFP16 | Path Traversal | - |