Fallos del tipo CWE-290

603 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-2026-50141HIGHWoodpecker gRPC agent_id metadata can be spoofed- cross-tenant agent impersonationEPSS 0.4%CVE-2025-0440MEDIUMInappropriate implementation in Fullscreen in Google Chrome on Windows prior to 132.0.6834.83 allowed a remote attacker to perform UI spoofiEPSS 0.4%CVE-2026-71485CRITICALCentrifugo: Client-forgeable headers emulation lets any client spoof headers forwarded to proxy backendsEPSS 0.4%CVE-2021-47923CRITICALOpenCart 3.0.3.8 Session Fixation via OCSESSID CookieEPSS 0.4%CVE-2023-5801—Vulnerability of identity verification being bypassed in the face unlock module. Successful exploitation of this vulnerability will affect iEPSS 0.4%CVE-2025-28128HIGHAn issue in Mytel Telecom Online Account System v1.0 allows attackers to bypass the OTP verification process via a crafted request.EPSS 0.4%CVE-2024-7981MEDIUMInappropriate implementation in Views in Google Chrome prior to 128.0.6613.84 allowed a remote attacker to perform UI spoofing via a craftedEPSS 0.4%CVE-2025-6188HIGHOn affected platforms running Arista EOS, maliciously formed UDP packets with source port 3503 may be accepted by EOS. UDP Port 3503 is associated with LspPing Echo Reply. This can result in unexpected behaviors, especially for UDP based services that do nEPSS 0.4%CVE-2025-22271MEDIUMIP Spoofing in CyberArk Endpoint Privilege ManagerEPSS 0.4%CVE-2023-37865MEDIUMWordPress IP2Location Country Blocker plugin <= 2.29.1 - IP Bypass Vulnerability vulnerabilityEPSS 0.4%CVE-2026-54782CRITICALCoreWCF: Authentication bypass in CoreWCF SAML 1.1 / 2.0 token signature validationEPSS 0.4%CVE-2024-33917MEDIUMWordPress WTI Like Post plugin <= 1.4.6 - IP Restriction Bypass Vulnerability vulnerabilityEPSS 0.4%CVE-2025-60538MEDIUMA lack of rate limiting in the login page of shiori v1.7.4 and below allows attackers to bypass authentication via a brute force attack.EPSS 0.4%CVE-2023-30950MEDIUMCVE-2023-30950 EPSS 0.4%CVE-2024-25595MEDIUMWordPress Defender Security plugin <= 4.4.1 - IP Restriction Bypass vulnerabilityEPSS 0.4%CVE-2023-30464HIGHCoreDNS through 1.10.1 enables attackers to achieve DNS cache poisoning and inject fake responses via a birthday attack.EPSS 0.4%CVE-2026-58488MEDIUMHedgeDoc: Rate-limit bypass via CF-Connecting-IP header spoofingEPSS 0.4%CVE-2026-28008CRITICALWordPress OAuth Single Sign On – SSO (OAuth Client) plugin <= 7.0.0 - Broken Authentication vulnerabilityEPSS 0.4%CVE-2026-62108CRITICALWordPress Headless Single Sign On plugin <= 1.7.0 - Broken Authentication vulnerabilityEPSS 0.4%CVE-2026-28812CRITICALApache JSPWiki: UserManager does not sanity-check user database at startupEPSS 0.4%