Fallos del tipo CWE-290

602 resultados

Autenticação inadequada sujeita a falsificação de identidade

Ocorre quando o mecanismo de autenticação é implementado de forma fraca ou incompleta, permitindo que um atacante se faça passar por outro usuário ou sistema sem precisar das credenciais legítimas. O risco é grave: qualquer um pode ganhar acesso não autorizado simplesmente contornando ou falsificando a identidade.

Ejemplo

Um app que autentica usuários apenas verificando um header HTTP customizado (tipo 'X-User-ID: 123') sem validação criptográfica real. Um atacante muda esse header para 'X-User-ID: admin' e consegue acesso à conta administrativa. Ou um serviço que aceita requisições apenas porque vêm de um IP específico, sem verificar certificados ou assinaturas.

Cómo mitigar

Use protocolos de autenticação estabelecidos (OAuth 2.0, JWT com assinatura, SAML) em vez de inventar o seu. Sempre valide credenciais no servidor com mecanismos criptográficos (hash, assinatura digital, certificados). Nunca confie em headers HTTP, IPs ou tokens não assinados como prova única de identidade.

CVE-2025-34065MEDIUMAVTECH IP camera, DVR, and NVR Devices Authentication Bypass via /nobody URL PathEPSS 0.6%CVE-2025-49004HIGHHijacking Caido instance during the initial setup via DNS Rebinding to achieve RCEEPSS 0.6%CVE-2024-35538MEDIUMTypecho v1.3.0 was discovered to contain a Client IP Spoofing vulnerability, which allows attackers to falsify their IP addresses by specifyEPSS 0.6%CVE-2022-36331CRITICALImpersonation attack causing an Authentication Bypass on Western Digital devicesEPSS 0.6%CVE-2025-34063CRITICALOneLogin AD Connector JWT Authentication Bypass via Exposed Signing KeyEPSS 0.6%CVE-2023-44447MEDIUMTP-Link TL-WR902AC loginFs Improper Authentication Information Disclosure VulnerabilityEPSS 0.6%CVE-2023-2001MEDIUMAn issue has been discovered in GitLab CE/EE affecting all versions before 15.10.8, all versions starting from 15.11 before 15.11.7, all verEPSS 0.6%CVE-2022-31738MEDIUMWhen exiting fullscreen mode, an iframe could have confused the browser about the current state of fullscreen, resulting in potential user cEPSS 0.6%CVE-2025-30144MEDIUMFast-JWT Improperly Validates iss ClaimsEPSS 0.6%CVE-2026-49231LOWApache APISIX: Identity spoofing issue in APISIX opa pluginEPSS 0.6%CVE-2023-3103HIGHAuthentication Bypass by Spoofing in Unitree Robotics A1EPSS 0.6%CVE-2020-37056MEDIUMCrystal Shard http-protection 0.2.0 - IP Spoofing BypassEPSS 0.6%CVE-2025-13953CRITICALBypass in the authentication method of the GTT Sistema de Información Tributario applicationEPSS 0.6%CVE-2026-7507HIGHOrg.keycloak/keycloak-services: session fixation in oidc login flow that can lead to account takeoverEPSS 0.6%CVE-2023-20256MEDIUMMultiple vulnerabilities in the per-user-override feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat DefEPSS 0.6%CVE-2021-21492MEDIUMSAP NetWeaver Application Server Java(HTTP Service), versions - 7.10, 7.11, 7.20, 7.30, 7.31, 7.40, 7.50, does not sufficiently validate logEPSS 0.6%CVE-2023-20246MEDIUMMultiple Cisco products are affected by a vulnerability in Snort access control policies that could allow an unauthenticated, remote attackeEPSS 0.6%CVE-2026-85751CRITICALMailu: Authentication bypass in header-based proxy authentication via spoofable `X-Forwarded-By` trustEPSS 0.6%CVE-2020-22660HIGHIn Ruckus R310 10.5.1.0.199, Ruckus R500 10.5.1.0.199, Ruckus R600 10.5.1.0.199, Ruckus T300 10.5.1.0.199, Ruckus T301n 10.5.1.0.199, RuckusEPSS 0.6%CVE-2026-76423CRITICALCisco ISE API Authentication Bypass VulnerabilityEPSS 0.5%