Fallos del tipo CWE-287

2786 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-2021-41126HIGHDeleted Admin Can Sign In to Admin InterfaceEPSS 1.1%CVE-2020-16098CRITICALIt is possible to enumerate access card credentials via an unauthenticated network connection to the server in versions of Command Centre v8EPSS 1.1%CVE-2022-40602CRITICALA flaw in the Zyxel LTE3301-M209 firmware verisons prior to V1.00(ABLG.6)C0 could allow a remote attacker to access the device using an imprEPSS 1.1%CVE-2026-23600CRITICALA remote authentication bypass vulnerability  exists in HPE AutoPass License Server (APLS).EPSS 1.1%CVE-2023-2024CRITICALImproper Authentication for OpenBlue Enterprise Manager Data CollectorEPSS 1.1%CVE-2026-53913CRITICALApache Camel Keycloak: KeycloakSecurityPolicy verifies the bearer access token only inside its role and permission checks, so in the default configuration the token is never verified and any non-null bearer value is acceptedEPSS 1.1%CVE-2024-23629CRITICALMotorola MR2600 Authentication Bypass VulnerabilityEPSS 1.1%CVE-2019-18312—A vulnerability has been identified in SPPA-T3000 MS3000 Migration Server (All versions). An attacker with network access to the MS3000 ServEPSS 1.1%CVE-2022-2336CRITICALSofting Secure Integration Server Improper AuthenticationEPSS 1.1%CVE-2019-14909CRITICALA vulnerability was found in Keycloak 7.x where the user federation LDAP bind type is none (LDAP anonymous bind), any password, invalid or vEPSS 1.1%CVE-2022-44244MEDIUMAn authentication bypass in Lin-CMS v0.2.1 allows attackers to escalate privileges to Super Administrator.EPSS 1.1%CVE-2026-102106CRITICALKiteworks Email Protection Gateway improper authenticationEPSS 1.1%CVE-2015-10083MEDIUMharrystech Dynosaur-Rails application_controller.rb basic_auth improper authenticationEPSS 1.1%CVE-2022-24738HIGHAccount compromise in EvmosEPSS 1.1%CVE-2019-18320—A vulnerability has been identified in SPPA-T3000 Application Server (All versions < Service Pack R8.2 SP2). An attacker with network accessEPSS 1.1%CVE-2020-15269HIGHExpired token reuse in SpreeEPSS 1.1%CVE-2024-20738CRITICALAdobe FrameMaker Publishing Server Authentication Bypass Vulnerability | CVE-2023-44324 bypassEPSS 1.1%CVE-2023-2283—A vulnerability was found in libssh, where the authentication check of the connecting client can be bypassed in the`pki_verify_data_signaturEPSS 1.1%CVE-2018-0116—A vulnerability in the RADIUS authentication module of Cisco Policy Suite could allow an unauthenticated, remote attacker to be authorized aEPSS 1.1%CVE-2021-33539HIGHWEIDMUELLER: WLAN devices affected by authentication bypass vulnerabilityEPSS 1.1%