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CWE-25 - Path Traversal: '/../filedir'

  • Abstraction:Variant
  • Structure:Simple
  • Status:Incomplete
  • Release Date:2006-07-19
  • Latest Modification Date:2023-10-26

Weakness Name

Path Traversal: '/../filedir'

Description

The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize "/../" 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. Sometimes a program checks for "../" at the beginning of the input, so a "/../" can bypass that check.

Common Consequences

Scope: Confidentiality, Integrity

Impact: Read Files or Directories, Modify Files or Directories

Related Weaknesses