Fallos del tipo CWE-287

2782 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-2019-18322—A vulnerability has been identified in SPPA-T3000 MS3000 Migration Server (All versions). An attacker with network access to the MS3000 ServEPSS 1.2%CVE-2019-18321—A vulnerability has been identified in SPPA-T3000 MS3000 Migration Server (All versions). An attacker with network access to the MS3000 ServEPSS 1.2%CVE-2024-38124CRITICALWindows Netlogon Elevation of Privilege VulnerabilityEPSS 1.2%CVE-2024-40794MEDIUMThis issue was addressed through improved state management. This issue is fixed in Safari 17.6, iOS 17.6 and iPadOS 17.6, macOS Sonoma 14.6.EPSS 1.2%CVE-2023-52160MEDIUMThe implementation of PEAP in wpa_supplicant through 2.10 allows authentication bypass. For a successful attack, wpa_supplicant must be confEPSS 1.2%CVE-2022-39251HIGHMatrix Javascript SDK vulnerable to Olm/Megolm protocol confusionEPSS 1.2%CVE-2022-39219HIGHBifrost users using basic authntication can bypass write permission limitEPSS 1.2%CVE-2020-15164CRITICALAuthentication Bypass in Scratch Login (mediawiki-scratch-login)EPSS 1.2%CVE-2024-23470CRITICALSolarWinds Access Rights Manager (ARM) UserScriptHumster Exposed Dangerous Method Remote Command Execution VulnerabilityEPSS 1.2%CVE-2022-24857HIGHMulti factor authentication bypass in django-mfa3EPSS 1.2%CVE-2022-23769HIGHSecuever reverseWall-MDS Remote Code Execution VulnerabilityEPSS 1.2%CVE-2018-25043MEDIUMuTorrent PRNG improper authenticationEPSS 1.2%CVE-2021-3632—A flaw was found in Keycloak. This vulnerability allows anyone to register a new security device or key when there is not a device already rEPSS 1.2%CVE-2025-37093CRITICALAn authentication bypass vulnerability exists in HPE StoreOnce Software.EPSS 1.2%CVE-2026-100886CRITICALSeetong T8108/T8108P/T8116/T8232 Debug Service improper authenticationEPSS 1.1%CVE-2022-20733MEDIUMCisco Identity Services Engine Authentication Bypass VulnerabilityEPSS 1.1%CVE-2022-39229MEDIUMGrafana users with email as a username can block other users from signing inEPSS 1.1%CVE-2025-21349MEDIUMWindows Remote Desktop Configuration Service Tampering VulnerabilityEPSS 1.1%CVE-2020-3410HIGHCisco Firepower Management Center Software Common Access Card Authentication Bypass VulnerabilityEPSS 1.1%CVE-2026-23906CRITICALApache Druid: Authentication Bypass via LDAP Anonymous BindEPSS 1.1%