Falhas do tipo CWE-287

2.850 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-2026-101956CRITICALJunos OS: Unauthorized root command execution when J-Web is enabledEPSS 0.8%CVE-2026-88952CRITICALOAuth2 sign-in attached to an existing account without an email comparison in AshAuthenticationEPSS 0.7%CVE-2025-49812HIGHApache HTTP Server: mod_ssl TLS upgrade attackEPSS 0.7%CVE-2026-76658CRITICALUnauthenticated Remote Code Execution in HPE Networking Fabric Composer SSH DaemonEPSS 0.7%CVE-2026-18961HIGHSocial Login, Passkeys, Magic Link & Email OTP – Passwordless Login by VentraConnect <= 1.4.3 - Unauthenticated Authentication Bypass via Spotify OAuth CallbackEPSS 0.7%CVE-2026-56169HIGHWindows Admin Center Elevation of Privilege VulnerabilityEPSS 0.7%CVE-2024-22394CRITICALAn improper authentication vulnerability has been identified in SonicWall SonicOS SSL-VPN feature, which in specific conditions could allow EPSS 0.7%CVE-2022-36133CRITICALThe WebConfig functionality of Epson TM-C3500 and TM-C7500 devices with firmware version WAM31500 allows authentication bypass.EPSS 0.7%CVE-2026-76657CRITICALAuthentication Bypass in HPE Networking Fabric Composer API allows Administrative AccessEPSS 0.7%CVE-2023-0105MEDIUMA flaw was found in Keycloak. This flaw allows impersonation and lockout due to the email trust not being handled correctly in Keycloak. An EPSS 0.7%CVE-2023-6787MEDIUMKeycloak: session hijacking via re-authenticationEPSS 0.7%CVE-2025-7955CRITICALRingCentral Communications 1.5 - 1.6.8 - Missing Server‑Side Verification to Authentication Bypass via ringcentral_admin_login_2fa_verify FunctionEPSS 0.7%CVE-2026-85637MEDIUMjofpin trape Admin Endpoint sockets.py join_room missing authenticationEPSS 0.7%CVE-2021-38679MEDIUMImproper Authentication in Kazoo ServerEPSS 0.7%CVE-2024-28012CRITICALImproper authentication vulnerability in NEC Corporation Aterm WG1800HP4, WG1200HS3, WG1900HP2, WG1200HP3, WG1800HP3, WG1200HS2, WG1900HP, WEPSS 0.7%CVE-2018-16496—In Versa Director, the un-authentication request found.EPSS 0.7%CVE-2025-7897MEDIUMharry0703 MoneyPrinterTurbo API Endpoint base.py verify_token missing authenticationEPSS 0.7%CVE-2024-33110CRITICALD-Link DIR-845L router v1.01KRb03 and before is vulnerable to Permission Bypass via the getcfg.php component.EPSS 0.7%CVE-2022-31122CRITICALWire-server vulnerable to Token Recipient Confusion resulting in account impersonation, deletion or malicious account creationEPSS 0.7%CVE-2022-0910MEDIUMA downgrade from two-factor authentication to one-factor authentication vulnerability in the CGI program of Zyxel USG/ZyWALL series firmwareEPSS 0.7%