CWE-40: Path Traversal: '\\UNC\share\name\' (Windows UNC Share)
CWE版本: 4.18
更新日期: 2025-09-09
弱点描述
The product accepts input that identifies a Windows UNC share ('\\UNC\share\name') that potentially redirects access to an unintended location or arbitrary file.
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-2001-0687
FTP server allows a remote attacker to retrieve privileged web server system information by specifying arbitrary paths in the UNC format (\\computername\sharename).
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 | - | '\\UNC\share\name\' (Windows UNC share) | - |
| Software Fault Patterns | SFP16 | Path Traversal | - |