Fallos del tipo CWE-290

607 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-2026-31813MEDIUMSupabase Auth has insecure Apple and Azure authentication with ID tokensEPSS 0.1%CVE-2026-63427HIGHAn authentication bypass vulnerability was discovered in Lenovo Software Fix that could allow a local authenticated user to perform arbitrarEPSS 0.1%CVE-2026-6387HIGHA potential authentication bypass vulnerability was reported in Lenovo System Update that could allow a local authenticated user to execute EPSS 0.1%CVE-2025-13455HIGHA vulnerability was reported in ThinkPlus configuration software that could allow a local authenticated user to bypass ThinkPlus device authEPSS 0.1%CVE-2025-27389MEDIUMApplication Installation Source Verification Flaw May Lead to Risk Detection BypassEPSS 0.1%CVE-2026-0292LOWPrisma Access Agent: Local Security Inspection Bypass Vulnerability on WindowsEPSS 0.1%CVE-2026-34778MEDIUMElectron: Service worker can spoof executeJavaScript IPC repliesEPSS 0.1%CVE-2026-39411MEDIUMLobeHub has an unauthenticated authentication bypass on `webapi` routes via forgeable `X-lobe-chat-auth` headerEPSS 0.1%CVE-2026-39959HIGHTmds.DBus: malicious D-Bus peers can spoof signals, exhaust file descriptor resources, and cause denial of serviceEPSS 0.1%CVE-2026-88819MEDIUMIn Siglet current and past versions the refresh token handler do not enforce proof of possession of the issuer DID.EPSS 0.1%CVE-2026-46731HIGHDell Display and Peripheral Manager (DDPM Windows), versions prior to 2.3.0.17, contain an Authentication Bypass by Spoofing vulnerability. EPSS 0.1%CVE-2024-38807MEDIUMCVE-2024-38807: Signature Forgery Vulnerability in Spring Boot's LoaderEPSS 0.1%CVE-2018-25361HIGHSoroush IM Desktop App 0.17.0 Authentication Bypass via Database InjectionEPSS 0.1%CVE-2026-75037HIGHPolkit authentication bypass in LACTEPSS 0.1%CVE-2026-44118HIGHOpenClaw < 2026.4.22 - Owner Context Spoofing via Bearer Token HeaderEPSS 0.1%CVE-2026-65399MEDIUMA file quarantine bypass was addressed with additional checks. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS EPSS 0.1%CVE-2026-59916HIGHDell Display and Peripheral Manager (DDPM Windows), versions prior to 2.3.0.17, contain Improper Access Control vulnerability. A low privileEPSS 0.1%CVE-2026-6090HIGHA potential authentication bypass was reported in Lenovo Smart Connect for Windows that could allow a local authenticated user to execute arEPSS 0.1%CVE-2025-26428LOWIn startLockTaskMode of LockTaskController.java, there is a possible lock screen bypass due to a logic error in the code. This could lead toEPSS 0.1%CVE-2026-53832HIGHOpenClaw < 2026.5.18 - Identity Header Forgery via Trusted-Proxy ConfigurationEPSS 0.1%