Nama: Partial String Comparison

The product performs a string comparison that only examines a portion of the string before determining whether there is a match.

Informasi Umum

Mode Pengenalan

Implementation

Platform yang Berlaku

Bahasa

Kelas: Not Language-Specific (Undetermined)

Teknologi

Kelas: Not Technology-Specific (Undetermined)

Konsekuensi Umum

Cakupan	Dampak	Kemungkinan
Integrity Access Control	Alter Execution Logic, Bypass Protection Mechanism Catatan: An attacker might succeed in authentication by providing a small password that matches the associated portion of the larger, correct password.

Contoh yang Diamati

Referensi	Deskripsi
CVE-2014-6394	Product does not prevent access to restricted directories due to partial string comparison with a public directory
CVE-2004-1012	Argument parser of an IMAP server treats a partial command "body[p" as if it is "body.peek", leading to index error and out-of-bounds corruption.
CVE-2004-0765	Web browser only checks the hostname portion of a certificate when the hostname portion of the URI is not a fully qualified domain name (FQDN), which allows remote attackers to spoof trusted certificates.
CVE-2002-1374	One-character password by attacker checks only against first character of real password.
CVE-2000-0979	The password is not properly checked, which allows remote attackers to bypass access controls by sending a 1-character password that matches the first character of the real password.

Mitigasi yang Memungkinkan

Phases : Testing
Thoroughly test the comparison scheme before deploying code into production. Perform positive testing as well as negative testing.

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.

Catatan

This is conceptually similar to other weaknesses, such as insufficient verification and regular expression errors. It is primary to some weaknesses.

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 Potential_Mitigations, Time_of_Introduction
CWE Content Team	MITRE	2008-09-08 +00:00	updated Description, Relationships, Other_Notes, Taxonomy_Mappings, Weakness_Ordinalities
CWE Content Team	MITRE	2009-12-28 +00:00	updated Demonstrative_Examples, Observed_Examples, Other_Notes, Relationship_Notes
CWE Content Team	MITRE	2011-03-29 +00:00	updated Relationships
CWE Content Team	MITRE	2011-06-01 +00:00	updated Common_Consequences, Demonstrative_Examples
CWE Content Team	MITRE	2011-06-27 +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
CWE Content Team	MITRE	2017-11-08 +00:00	updated Applicable_Platforms
CWE Content Team	MITRE	2018-03-27 +00:00	updated Name, Observed_Examples, Relationships, Type
CWE Content Team	MITRE	2019-01-03 +00:00	updated Relationships
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	2025-12-11 +00:00	updated Applicable_Platforms
CWE Content Team	MITRE	2026-10-28 +00:00	updated Common_Consequences, Description, Observed_Examples

Detail CWE-187

CWE-187