Detalle CWE-1289

CWE-1289

Improper Validation of Unsafe Equivalence in Input
Incomplete
2020-02-24
00h00 +00:00
2025-12-11
00h00 +00:00
CWE Mitre.org
Notificaciones para un CWE
Manténgase informado sobre cualquier cambio en un CWE específico.
Gestionar notificaciones

Nombre: Improper Validation of Unsafe Equivalence in Input

The product receives an input value that is used as a resource identifier or other type of reference, but it does not validate or incorrectly validates that the input is equivalent to a potentially-unsafe value.

Informaciones generales

Modos de introducción

Implementation

Plataformas aplicables

Lenguaje

Class: Not Language-Specific (Often)

Consecuencias comunes

Alcance Impacto Probabilidad
OtherVaries by Context

Ejemplos observados

Referencias Descripción

CVE-2021-39155

Chain: A microservice integration and management platform compares the hostname in the HTTP Host header in a case-sensitive way (CWE-178, CWE-1289), allowing bypass of the authorization policy (CWE-863) using a hostname with mixed case or other variations.

CVE-2020-11053

Chain: Go-based Oauth2 reverse proxy can send the authenticated user to another site at the end of the authentication flow. A redirect URL with HTML-encoded whitespace characters can bypass the validation (CWE-1289) to redirect to a malicious site (CWE-601)

CVE-2005-0269

File extension check in forum software only verifies extensions that contain all lowercase letters, which allows remote attackers to upload arbitrary files via file extensions that include uppercase letters.

CVE-2001-1238

Task Manager does not allow local users to end processes with uppercase letters named (1) winlogon.exe, (2) csrss.exe, (3) smss.exe and (4) services.exe via the Process tab which could allow local users to install Trojan horses that cannot be stopped.

CVE-2004-2214

HTTP server allows bypass of access restrictions using URIs with mixed case.

Mitigaciones potenciales

Phases : Implementation

Notas de mapeo de vulnerabilidades

Justificación : This CWE entry is at the Base level of abstraction, which is a preferred level of abstraction for mapping to the root causes of vulnerabilities.
Comentario : 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.

Notas

This entry is still under development and will continue to see updates and content improvements.

Envío

Nombre Organización Fecha Fecha de lanzamiento Version
CWE Content Team MITRE 2020-06-24 +00:00 2020-02-24 +00:00 4.1

Modificaciones

Nombre Organización Fecha Comentario
CWE Content Team MITRE 2021-10-28 +00:00 updated Description
CWE Content Team MITRE 2022-10-13 +00:00 updated Observed_Examples
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 Weakness_Ordinalities
La información presentada en CVE Find proviene de varias fuentes de referencia cuidadosamente seleccionadas. Los datos CVE son proporcionados por MITRE Corporation y la Base de Datos Nacional de Vulnerabilidades (NVD). El catálogo de Vulnerabilidades Explotadas Conocidas (KEV) proviene de la Agencia de Seguridad de Infraestructura y Ciberseguridad (CISA), mientras que las puntuaciones EPSS provienen de FIRST.org. Además, los datos sobre debilidades de software (CWE) y patrones de ataque comunes (CAPEC) son mantenidos por MITRE Corporation, y la información sobre configuraciones de hardware y software (CPE) es proporcionada por la NVD.