Detail CWE-62

CWE-62

UNIX Hard Link
2006-07-19
00h00 +00:00
Incomplete
2026-10-28
00h00 +00:00
CWE Mitre.org
Notifikasi untuk CWE tertentu
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Kelola notifikasi

Nama: UNIX Hard Link

The product, when opening a file or directory, does not sufficiently account for when the name is associated with a hard link to a target that is outside of the intended control sphere. This could allow an attacker to cause the product to operate on unauthorized files.

Informasi Umum

Mode Pengenalan

Implementation

Platform yang Berlaku

Bahasa

Kelas: Not Language-Specific (Undetermined)

Sistem Operasi

Kelas: Unix (Undetermined)

Teknologi

Kelas: Not Technology-Specific (Undetermined)

Konsekuensi Umum

Cakupan Dampak Kemungkinan
Confidentiality
Integrity		Read Files or Directories, Modify Files or Directories

Catatan: An attacker can escalate their privileges if a file used by a privileged program is replaced with a hard link to a sensitive file (e.g. /etc/passwd). When the process opens the file, the attacker can assume the privileges of that process.

Contoh yang Diamati

Referensi Deskripsi

CVE-2001-1494

Hard link attack, file overwrite; interesting because program checks against soft links

CVE-2002-0793

Hard link and possibly symbolic link following vulnerabilities in embedded operating system allow local users to overwrite arbitrary files.

CVE-2003-0578

Server creates hard links and unlinks files as root, which allows local users to gain privileges by deleting and overwriting arbitrary files.

CVE-1999-0783

Operating system allows local users to conduct a denial of service by creating a hard link from a device special file to a file on an NFS file system.

CVE-2004-1603

Web hosting manager follows hard links, which allows local users to read or modify arbitrary files.

CVE-2004-1901

Package listing system allows local users to overwrite arbitrary files via a hard link attack on the lockfiles.

CVE-2005-0342

The Finder in Mac OS X and earlier allows local users to overwrite arbitrary files and gain privileges by creating a hard link from the .DS_Store file to an arbitrary file.

CVE-2005-1111

Hard link race condition

CVE-2021-21272

"Zip Slip" vulnerability in Go-based Open Container Initiative (OCI) registries product allows writing arbitrary files outside intended directory via symbolic links or hard links in a gzipped tarball.

CVE-2003-1366

setuid root tool allows attackers to read secret data by replacing a temp file with a hard link to a sensitive file

Mitigasi yang Memungkinkan

Phases : Architecture and Design

Catatan Pemetaan Kerentanan

Justifikasi : 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.
Komentar : 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.

Referensi

REF-62

The Art of Software Security Assessment
Mark Dowd, John McDonald, Justin Schuh.

Pengajuan

Nama Organisasi Tanggal Tanggal rilis Version
PLOVER 2006-07-19 +00:00 2006-07-19 +00:00 Draft 3

Modifikasi

Nama Organisasi Tanggal Komentar
Eric Dalci Cigital 2008-07-01 +00:00 updated Time_of_Introduction
CWE Content Team MITRE 2008-09-08 +00:00 updated Applicable_Platforms, Relationships, Taxonomy_Mappings, Weakness_Ordinalities
CWE Content Team MITRE 2008-10-14 +00:00 updated Description
CWE Content Team MITRE 2008-11-24 +00:00 updated Relationships, Taxonomy_Mappings
CWE Content Team MITRE 2011-06-01 +00:00 updated Common_Consequences
CWE Content Team MITRE 2011-09-13 +00:00 updated Relationships, Taxonomy_Mappings
CWE Content Team MITRE 2012-05-11 +00:00 updated Observed_Examples, References, 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, Causal_Nature, Observed_Examples, Relationships, Taxonomy_Mappings
CWE Content Team MITRE 2020-02-24 +00:00 updated Relationships
CWE Content Team MITRE 2022-04-28 +00:00 updated Research_Gaps
CWE Content Team MITRE 2022-10-13 +00:00 updated Observed_Examples
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
CWE Content Team MITRE 2024-07-16 +00:00 updated Observed_Examples
CWE Content Team MITRE 2025-09-09 +00:00 updated Affected_Resources, Functional_Areas
CWE Content Team MITRE 2025-12-11 +00:00 updated Applicable_Platforms
CWE Content Team MITRE 2026-10-28 +00:00 updated Common_Consequences, Description
Informasi yang disajikan di CVE Find berasal dari beberapa sumber referensi yang dipilih dengan cermat. Data CVE disediakan oleh MITRE Corporation dan National Vulnerability Database (NVD). Katalog Known Exploited Vulnerabilities (KEV) bersumber dari Cybersecurity and Infrastructure Security Agency (CISA), sementara skor EPSS berasal dari FIRST.org. Selain itu, data mengenai kelemahan perangkat lunak (CWE) dan pola serangan umum (CAPEC) dikelola oleh MITRE Corporation, dan informasi tentang konfigurasi perangkat keras dan perangkat lunak (CPE) disediakan oleh NVD.