Falhas do tipo CWE-287

2.859 resultados

Autenticação Insuficiente ou Ausente

Quando um usuário ou sistema afirma ser quem diz que é, a aplicação não valida (ou valida mal) essa identidade antes de conceder acesso. Isso permite que um atacante se passe por outra pessoa sem fornecer credenciais válidas, obtendo privilégios indevidos.

Exemplo

Um sistema que aceita login apenas verificando um campo de e-mail na sessão (sem senha), ou uma API que confia em um identificador de usuário enviado no header HTTP sem validar um token assinado. Um atacante simplesmente muda o valor e acessa dados de terceiros.

Como mitigar

Implemente autenticação robusta: exija senha forte + MFA quando possível, valide tokens com assinatura criptográfica, revoque sessões expiradas, e nunca confie em dados controlados pelo cliente. Teste autenticação em cada endpoint crítico.

CVE-2023-41751MEDIUMSensitive information disclosure due to improper token expiration validation. The following products are affected: Acronis Agent (Windows) bEPSS 0.1%CVE-2022-33242HIGHImproper authentication in Qualcomm IPCEPSS 0.1%CVE-2025-25201MEDIUMImproper Validation of Admin Key in PIV SmartcardEPSS 0.1%CVE-2023-33070HIGHImproper Authentication in Automotive OSEPSS 0.1%CVE-2026-45289MEDIUMCloudburstMC Protocol: Partially missing validation for FULL type authentication tokensEPSS 0.1%CVE-2026-39969MEDIUMTypeBot: WhatsApp Webhook Endpoint Missing Signature VerificationEPSS 0.1%CVE-2022-41737HIGHIBM Spectrum Scale security bypassEPSS 0.1%CVE-2026-10548MEDIUMNousResearch hermes-agent Credential Pool Synchronization credential_pool.py _sync_anthropic_entry_from_credentials_file improper authenticationEPSS 0.1%CVE-2022-39899MEDIUMImproper authentication vulnerability in Samsung WindowManagerService prior to SMR Dec-2022 Release 1 allows attacker to send the input evenEPSS 0.1%CVE-2022-48305MEDIUMThere is an identity authentication bypass vulnerability in Huawei Children Smart Watch (Simba-AL00) 1.1.1.274. Successful exploitation of tEPSS 0.1%CVE-2019-6198HIGHA vulnerability was reported in Lenovo PC Manager prior to version 2.8.90.11211 that could allow a local attacker to escalate privileges.EPSS 0.1%CVE-2019-6197HIGHA vulnerability was reported in Lenovo PC Manager prior to version 2.8.90.11211 that could allow a local attacker to escalate privileges.EPSS 0.1%CVE-2025-68712MEDIUMSpSoft AppLock (com.sp.protector.free) 7.9.40 for Android allows a local attacker with physical access to bypass fingerprint or PIN authentiEPSS 0.1%CVE-2026-20655MEDIUMAn authorization issue was addressed with improved state management. This issue is fixed in iOS 18.7.5 and iPadOS 18.7.5, iOS 26.3 and iPadOEPSS 0.1%CVE-2023-24852HIGHImproper Authentication in CoreEPSS 0.1%CVE-2026-47838MEDIUMUnauthorized User Impersonation when Using X.509 Client CertificatesEPSS 0.1%CVE-2025-6723MEDIUMUntrusted user data can lead to privilege escalationEPSS 0.1%CVE-2026-40109LOWFlux notification-controller GCR Receiver missing email validation allows unauthorized reconciliation triggeringEPSS 0.1%CVE-2026-39411MEDIUMLobeHub has an unauthenticated authentication bypass on `webapi` routes via forgeable `X-lobe-chat-auth` headerEPSS 0.1%CVE-2023-21471MEDIUMImproper access control vulnerability in SemClipboard prior to SMR Apr-2023 Release 1 allows attackers to read arbitrary files with system pEPSS 0.1%