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CWE-51

Path Equivalence: '/multiple//internal/slash'

Variant
Incomplete

Description

The product accepts path input in the form of multiple internal slash ('/multiple//internal/slash/') without appropriate validation, which can lead to ambiguous path resolution and allow an attacker to traverse the file system to unintended locations or access arbitrary files.

Common Consequences

Scope

Confidentiality
Integrity

Impact

Read Files or Directories, Modify Files or Directories

Potential Mitigations

Implementation

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.

CVE-2002-1483

Read files with full pathname using multiple internal slash.

Applicable Platforms

Not Language-Specific

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