COMMON WEAKNESS ENUMERATIONIncomplete

CWE-52

Path Equivalence: '/multiple/trailing/slash//'

The product accepts path input in the form of multiple trailing slash ('/multiple/trailing/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.

Abstraction

Variant

Structure

Simple

Likelihood of Exploit

Medium

Understand the problem

What is the problem?

The product accepts path input in the form of multiple trailing slash ('/multiple/trailing/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.

Root cause

How and when does the problem arise?

Lifecycle phase

Implementation

Risk

What does successful exploitation lead to?

Read Files or DirectoriesModify Files or Directories

Affected security scopes: Confidentiality, Integrity

Defence

How is it prevented and fixed?

Implementation

Input Validation

Detail
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.