Fallos del tipo CWE-290

721 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-2021-47923CRITICALOpenCart 3.0.3.8 Session Fixation via OCSESSID CookieEPSS 0.4%CVE-2026-88011MEDIUMTraefik: ForwardAuth identity spoofing via dot-form header aliasEPSS 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-2026-32045HIGHOpenClaw < 2026.2.21 - Authentication Bypass in HTTP Gateway Routes via Tokenless Tailscale AuthEPSS 0.4%CVE-2024-11701MEDIUMThe incorrect domain may have been displayed in the address bar during an interrupted navigation attempt. This could have led to user confusEPSS 0.4%CVE-2023-37865MEDIUMWordPress IP2Location Country Blocker plugin <= 2.29.1 - IP Bypass Vulnerability vulnerabilityEPSS 0.4%CVE-2025-43503MEDIUMAn inconsistent user interface issue was addressed with improved state management. This issue is fixed in Safari 26.1, iOS 18.7.2 and iPadOSEPSS 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-2026-118653MEDIUMEcho: Rate Limiter Bypass via Spoofed X-Forwarded-For Header in Default ConfigurationEPSS 0.4%CVE-2024-33917MEDIUMWordPress WTI Like Post plugin <= 1.4.6 - IP Restriction Bypass Vulnerability vulnerabilityEPSS 0.4%CVE-2026-54782CRITICALCoreWCF: Authentication bypass in CoreWCF SAML 1.1 / 2.0 token signature validationEPSS 0.4%CVE-2023-41591CRITICALAn issue in Open Network Foundation ONOS v2.7.0 allows attackers to create fake IP/MAC addresses and potentially execute a man-in-the-middleEPSS 0.4%CVE-2026-75120CRITICALRemote Code Execution (RCE) vulnerability identified in the OpenText™ EnCase SAFE AgentsEPSS 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-2026-111691CRITICALWIMOOR through commit ec86736 Authentication Bypass via Forged X-USERINFO HeaderEPSS 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-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-2026-58488MEDIUMHedgeDoc: Rate-limit bypass via CF-Connecting-IP header spoofingEPSS 0.4%CVE-2026-81777MEDIUMWordPress Essential Addons for Elementor plugin <= 6.8.0 - Bypass vulnerability vulnerabilityEPSS 0.4%