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-2023-36883MEDIUMMicrosoft Edge for iOS Spoofing VulnerabilityEPSS 0.6%CVE-2023-41329LOWDomain restrictions bypass via DNS Rebinding in WireMock and WireMock StudioEPSS 0.6%CVE-2026-69843CRITICALMicrosoft Fabric Elevation of Privilege VulnerabilityEPSS 0.6%CVE-2026-42354CRITICALSentry: Improper authentication on SAML SSO process allows user identity linkingEPSS 0.6%CVE-2026-50755CRITICALAn issue in DayuanJiang next-ai-draw-io 0.4.13 allows a remote attacker to obtain sensitive information via the X-Forwarded-For header valueEPSS 0.6%CVE-2019-3884LOWA vulnerability exists in the garbage collection mechanism of atomic-openshift. An attacker able spoof the UUID of a valid object from anothEPSS 0.6%CVE-2026-55652CRITICALWekan: Header-login IP allowlist bypass via X-Forwarded-For spoofing in Wekan allows unauthenticated full account takeover (incl. admin)EPSS 0.6%CVE-2023-2807MEDIUMAuthentication bypass in password reset processEPSS 0.6%CVE-2023-23398HIGHMicrosoft Excel Spoofing VulnerabilityEPSS 0.6%CVE-2021-27861MEDIUML2 network filtering bypass using stacked VLAN0 and LLC/SNAP headers with invalid lengthsEPSS 0.6%CVE-2026-49757CRITICALOAuth2/OIDC account takeover in AshAuthentication via email-based user matchingEPSS 0.6%CVE-2023-28452HIGHAn issue was discovered in CoreDNS through 1.10.1. There is a vulnerability in DNS resolving software, which triggers a resolver to ignore vEPSS 0.6%CVE-2024-46957CRITICALMellium mellium.im/xmpp 0.0.1 through 0.21.4 allows response spoofing if the implementation uses predictable IDs because the stanza type is EPSS 0.6%CVE-2026-54089CRITICALFile Browser: Authentication Bypass via Proxy Auth Header ForgeryEPSS 0.6%CVE-2026-13207HIGHFrangoteam FUXA SCADA/HMI Authentication Bypass by SpoofingEPSS 0.6%CVE-2025-34053MEDIUMAVTECH IP camera, DVR, and NVR Devices Authentication Bypass via .cab Path ManipulationEPSS 0.6%CVE-2023-3243HIGH ** UNSUPPORTED WHEN ASSIGNED ** [An attacker can capture an authenticating hash and utilize it to create new sessions. The hash is also a pEPSS 0.6%CVE-2025-27671CRITICALVasion Print (formerly PrinterLogic) before Virtual Appliance Host 22.0.843 Application 20.0.1923 allows Device Impersonation OVE-20230524-0EPSS 0.6%CVE-2022-41798MEDIUMSession information easily guessable vulnerability exists in Kyocera Document Solutions MFPs and printers, which may allow a network-adjacenEPSS 0.6%CVE-2024-22520HIGHAn issue discovered in Dronetag Drone Scanner 1.5.2 allows attackers to impersonate other drones via transmission of crafted data packets.EPSS 0.6%