Fallos del tipo CWE-287

2859 resultados

Autenticação inadequada ou ausente

A aplicação não valida ou valida de forma insuficiente a identidade de quem tenta acessá-la. Quando um usuário diz ser quem é, o sistema acredita sem verificar corretamente, permitindo que atacantes se façam passar por outros usuários ou contas legítimas.

Ejemplo

Um sistema que aceita login apenas com nome de usuário, sem senha. Ou uma API que confia no header 'User-ID' enviado pelo cliente sem validar se aquele usuário realmente existe ou tem sessão ativa. Um atacante simplesmente altera o header e acessa dados de outra conta.

Cómo mitigar

Implemente autenticação robusta: exija múltiplos fatores (senha forte + MFA), valide credenciais contra base de dados segura, use sessões com token assinado e com expiração, nunca confie em dados enviados pelo cliente como prova de identidade. Revise regularmente logs de acesso para detectar abusos.

CVE-2026-34204HIGHMinIO is Vulnerable to SSE Metadata Injection via Replication HeadersEPSS 0.1%CVE-2026-92376HIGHLocal Privilege Escalation via IPC Broker Impersonation in TeamViewer Remote Management Monitoring for WindowsEPSS 0.1%CVE-2022-41590MEDIUMSome smartphones have authentication-related (including session management) vulnerabilities as the setup wizard is bypassed. Successful explEPSS 0.1%CVE-2026-48991MEDIUMXianYuLauncher: Legacy Microsoft account OAuth sign-in flow lacks PKCE and state validationEPSS 0.1%CVE-2026-13208MEDIUMKubevirt: virt-handler-rhel9: kubevirt: virt-handler notify server trusts vmi identity from unauthenticated grpc request bodyEPSS 0.1%CVE-2024-40653HIGHIn multiple functions of ConnectionServiceWrapper.java, there is a possible way to retain a permission forever in the background due to a loEPSS 0.1%CVE-2020-9250LOWThere is an insufficient authentication vulnerability in some Huawei smart phone. An unauthenticated, local attacker can crafts software pacEPSS 0.1%CVE-2026-31392HIGHsmb: client: fix krb5 mount with username optionEPSS 0.1%CVE-2026-86989MEDIUMAn authorization issue was addressed with improved state management. This issue is fixed in iOS 26.7.2 and iPadOS 26.7.2, iOS 27.2 and iPadOEPSS 0.1%CVE-2026-47272HIGHpam_usb: OTP pad authentication bypass via missing system pad check and uninitialized RNG bufferEPSS 0.1%CVE-2025-6044MEDIUMAn Improper Access Control vulnerability in the Stylus Tools component of Google ChromeOS version 16238.64.0 on the garaged stylus devices aEPSS 0.1%CVE-2025-10684MEDIUMConstruction Light < 1.6.8 - Subscriber+ Arbitrary Plugin ActivationEPSS 0.1%CVE-2026-104627MEDIUMGitea OpenID account linking without session bindingEPSS 0.1%CVE-2022-25832MEDIUMImproper authentication vulnerability in S Secure prior to SMR Apr-2022 Release 1 allows physical attackers to use locked Myfiles app withouEPSS 0.1%CVE-2026-58915MEDIUMA physical occupant on an Android Automotive OS (AAOS) Multi-User Multi-Display (MUMD) passenger display can view sensitive Heads-Up NotificEPSS 0.1%CVE-2021-25347MEDIUMHijacking vulnerability in Samsung Email application version prior to SMR Feb-2021 Release 1 allows attackers to intercept when the providerEPSS 0.1%CVE-2026-82332MEDIUMFireware OS Improper Authentication in AuthPoint MFA Verification Allows Session HijackingEPSS 0.1%CVE-2023-2626HIGHAuthentication Bypass in OpenThread Boarder Router devicesEPSS 0.1%CVE-2021-25389LOWImproper running task check in S Secure prior to SMR MAY-2021 Release 1 allows attackers to use locked app without authentication.EPSS 0.1%CVE-2026-102631MEDIUMauthd: Account takeover via username fallback in identity matching after IdP email reassignmentEPSS 0.1%