Fallos del tipo CWE-287

2800 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-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%CVE-2023-39349HIGHSentry vulnerable to privilege escalation via ApiTokensEndpointEPSS 1.1%CVE-2020-8148—UniFi Cloud Key firmware < 1.1.6 contains a vulnerability that enables an attacker being able to change a device hostname by sending a malicEPSS 1.1%CVE-2019-14910CRITICALA vulnerability was found in keycloak 7.x, when keycloak is configured with LDAP user federation and StartTLS is used instead of SSL/TLS froEPSS 1.1%CVE-2019-18319—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-2019-18318—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-2024-30299CRITICALTenable Vulnerability Disclosure | API Auth BypassEPSS 1.1%CVE-2019-18317—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-2022-25027HIGHThe Forgotten Password functionality of Rocket TRUfusion Portal v7.9.2.1 allows remote attackers to bypass authentication and access restricEPSS 1.1%CVE-2017-12712—The authentication algorithm in Abbott Laboratories pacemakers manufactured prior to Aug 28, 2017, which involves an authentication key and EPSS 1.0%CVE-2022-34379CRITICALDell EMC CloudLink 7.1.2 and all prior versions contain an Authentication Bypass Vulnerability. A remote attacker, with the knowledge of theEPSS 1.0%CVE-2022-29883MEDIUMA vulnerability has been identified in SICAM T (All versions < V3.0). Affected devices do not restrict unauthenticated access to certain pagEPSS 1.0%CVE-2022-47633HIGHAn image signature validation bypass vulnerability in Kyverno 1.8.3 and 1.8.4 allows a malicious image registry (or a man-in-the-middle attaEPSS 1.0%CVE-2023-41264CRITICALNetwrix Usercube before 6.0.215, in certain misconfigured on-premises installations, allows authentication bypass on deployment endpoints, lEPSS 1.0%CVE-2022-1101HIGHSourceCodester Royale Event Management System userregister.php improper authenticationEPSS 1.0%CVE-2020-16102HIGHImproper Authentication vulnerability in Gallagher Command Centre Server allows an unauthenticated remote attacker to create items with invaEPSS 1.0%CVE-2022-36073HIGHRubyGems allows creation of users with arbitrary unverified emailsEPSS 1.0%CVE-2022-43620HIGHThis vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link DIR-1935 1.03 routers. AutEPSS 1.0%CVE-2023-40660MEDIUMOpensc: potential pin bypass when card tracks its own login stateEPSS 1.0%