CWE-31 - Path Traversal: 'dir\..\..\filename'
CWE-31
- Abstraction:
- Variant
- Structure:
- Simple
- Status:
- Draft
- Weakness Name
Path Traversal: 'dir\..\..\filename'
- Description
The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize 'dir\..\..\filename' (multiple internal backslash dot dot) sequences that can resolve to a location that is outside of that directory.
This allows attackers to traverse the file system to access files or directories that are outside of the restricted directory. The 'dir\..\..\filename' manipulation is useful for bypassing some path traversal protection schemes. Sometimes a program only removes one "..\" sequence, so multiple "..\" can bypass that check. Alternately, this manipulation could be used to bypass a check for "..\" at the beginning of the pathname, moving up more than one directory level.
- Common Consequences
Scope: Confidentiality, Integrity
Impact: Read Files or Directories, Modify Files or Directories
- Related Weaknesses
- Release Date:
- 2006-07-19
- Latest Modification Date:
- 2023-06-29
Free security scan for your website