CWE-46 Detail

CWE-46

Path Equivalence: 'filename ' (Trailing Space)
Incomplete
2006-07-19
00h00 +00:00
2023-10-26
00h00 +00:00
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Name: Path Equivalence: 'filename ' (Trailing Space)

The product accepts path input in the form of trailing space ('filedir ') 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.

General Informations

Modes Of Introduction

Implementation

Applicable Platforms

Language

Class: Not Language-Specific (Undetermined)

Common Consequences

Scope Impact Likelihood
Confidentiality
Integrity
Read Files or Directories, Modify Files or Directories

Observed Examples

References Description

CVE-2001-0693

Source disclosure via trailing encoded space "%20"

CVE-2001-0778

Source disclosure via trailing encoded space "%20"

CVE-2001-1248

Source disclosure via trailing encoded space "%20"

CVE-2004-0280

Source disclosure via trailing encoded space "%20"

CVE-2004-2213

Source disclosure via trailing encoded space "%20"

CVE-2005-0622

Source disclosure via trailing encoded space "%20"

CVE-2005-1656

Source disclosure via trailing encoded space "%20"

CVE-2002-1603

Source disclosure via trailing encoded space "%20"

CVE-2001-0054

Multi-Factor Vulnerability (MFV). directory traversal and other issues in FTP server using Web encodings such as "%20"; certain manipulations have unusual side effects.

CVE-2002-1451

Trailing space ("+" in query string) leads to source code disclosure.

Vulnerability Mapping Notes

Justification : This CWE entry is at the Variant level of abstraction, which is a preferred level of abstraction for mapping to the root causes of vulnerabilities.
Comment : Carefully read both the name and description to ensure that this mapping is an appropriate fit. Do not try to 'force' a mapping to a lower-level Base/Variant simply to comply with this preferred level of abstraction.

Related Attack Patterns

CAPEC-ID Attack Pattern Name
CAPEC-649 Adding a Space to a File Extension
An adversary adds a space character to the end of a file extension and takes advantage of an application that does not properly neutralize trailing special elements in file names. This extra space, which can be difficult for a user to notice, affects which default application is used to operate on the file and can be leveraged by the adversary to control execution.

Submission

Name Organization Date Date release Version
PLOVER 2006-07-19 +00:00 2006-07-19 +00:00 Draft 3

Modifications

Name Organization Date Comment
Eric Dalci Cigital 2008-07-01 +00:00 updated Time_of_Introduction
CWE Content Team MITRE 2008-09-08 +00:00 updated Relationships, Taxonomy_Mappings
CWE Content Team MITRE 2011-06-01 +00:00 updated Common_Consequences
CWE Content Team MITRE 2012-05-11 +00:00 updated Relationships
CWE Content Team MITRE 2012-10-30 +00:00 updated Potential_Mitigations
CWE Content Team MITRE 2014-07-30 +00:00 updated Relationships, Taxonomy_Mappings
CWE Content Team MITRE 2017-11-08 +00:00 updated Applicable_Platforms
CWE Content Team MITRE 2019-06-20 +00:00 updated Related_Attack_Patterns
CWE Content Team MITRE 2020-02-24 +00:00 updated Relationships
CWE Content Team MITRE 2023-01-31 +00:00 updated Description
CWE Content Team MITRE 2023-04-27 +00:00 updated Relationships
CWE Content Team MITRE 2023-06-29 +00:00 updated Mapping_Notes
CWE Content Team MITRE 2023-10-26 +00:00 updated Observed_Examples