Fallos del tipo CWE-287

2785 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-2026-110669MEDIUMcemtan sar2html sar2html.py deleteAll missing authenticationEPSS 0.6%CVE-2023-39345HIGHUnauthorized Access to Private Fields in User Registration API in strapiEPSS 0.6%CVE-2019-1758MEDIUMCisco IOS Software Catalyst 6500 Series 802.1x Authentication Bypass VulnerabilityEPSS 0.6%CVE-2024-41198CRITICALAn issue in Ocuco Innovation - REPORTS.EXE v2.10.24.13 allows attackers to bypass authentication and escalate privileges to Administrator viEPSS 0.6%CVE-2024-41197CRITICALAn issue in Ocuco Innovation - INVCLIENT.EXE v2.10.24.5 allows attackers to bypass authentication and escalate privileges to Administrator vEPSS 0.6%CVE-2024-41195CRITICALAn issue in Ocuco Innovation - INNOVASERVICEINTF.EXE v2.10.24.17 allows attackers to bypass authentication and escalate privileges to AdminiEPSS 0.6%CVE-2020-8236—A wrong configuration in Nextcloud Server 19.0.1 incorrectly made the user feel the passwordless WebAuthn is also a two factor verification EPSS 0.6%CVE-2024-25652HIGHIn Delinea PAM Secret Server 11.4, it is possible for a user assigned "Administer Reports" permission and/or with access to Report functionaEPSS 0.6%CVE-2021-25505LOWImproper authentication in Samsung Pass prior to 3.0.02.4 allows to use app without authentication when lockscreen is unlocked.EPSS 0.6%CVE-2025-15097MEDIUMAlteryx Server status improper authenticationEPSS 0.6%CVE-2026-48039CRITICALMeta Ads MCP: Unauthenticated HTTP MCP Tool Execution Leaks Operator Meta Access TokenEPSS 0.6%CVE-2022-24740MEDIUMImproper Authentication in VoltoEPSS 0.6%CVE-2026-63472CRITICALVendure: External-authentication account takeover: external login linked to a pre-existing account by email without verificationEPSS 0.6%CVE-2024-23813HIGHA vulnerability has been identified in Polarion ALM (All versions < V2404.0). The REST API endpoints of doorsconnector of the affected produEPSS 0.6%CVE-2024-44127MEDIUMThis issue was addressed through improved state management. This issue is fixed in iOS 17.7 and iPadOS 17.7, iOS 18 and iPadOS 18. Private BEPSS 0.6%CVE-2026-28215CRITICALhoppscotch Vulnerable to Unauthenticated Onboarding Config TakeoverEPSS 0.6%CVE-2025-27138HIGHDataEase has an improper authentication vulnerabilityEPSS 0.6%CVE-2022-40616MEDIUMIBM Maximo Asset Management 7.6.1.1, 7.6.1.2, and 7.6.1.3 could allow a user to bypass authentication and obtain sensitive information or peEPSS 0.6%CVE-2025-27414MEDIUMMinIO SFTP authentication bypass due to improperly trusted SSH keyEPSS 0.6%CVE-2026-13543MEDIUMDocumenso Google OAuth Login handle-oauth-callback-url.ts improper authenticationEPSS 0.6%