Fallos del tipo CWE-287

2806 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-2022-39264HIGHnheko vulnerable to secret poisoning using MITM on secret requests by the homeserverEPSS 0.8%CVE-2021-26253HIGHBypass of Splunk Enterprise's implementation of DUO MFAEPSS 0.8%CVE-2023-6847HIGHImproper Authentication in GitHub Enterprise Server leading to Authentication Bypass for Public Repository DataEPSS 0.8%CVE-2018-14637MEDIUMThe SAML broker consumer endpoint in Keycloak before version 4.6.0.Final ignores expiration conditions on SAML assertions. An attacker can eEPSS 0.8%CVE-2024-7923CRITICALPuppet-pulpcore: an authentication bypass vulnerability exists in pulpcoreEPSS 0.8%CVE-2026-1203MEDIUMCRMEB JSON Token LoginServices.php remoteRegister improper authenticationEPSS 0.8%CVE-2018-16465—Missing state in Nextcloud Server prior to 14.0.0 would not enforce the use of a second factor at login if the the provider of the second faEPSS 0.8%CVE-2022-23541MEDIUMjsonwebtoken's insecure implementation of key retrieval function could lead to Forgeable Public/Private Tokens from RSA to HMACEPSS 0.8%CVE-2019-5426—In Ubiquiti Networks EdgeSwitch X v1.1.0 and prior, an unauthenticated user can use the "local port forwarding" and "dynamic port forwardingEPSS 0.8%CVE-2024-11015CRITICALSign In With Google <= 1.8.0 - Authentication Bypass in authenticate_userEPSS 0.8%CVE-2026-20129CRITICALCisco Catayst SD-WAN Authentication Bypass VulnerabilityEPSS 0.8%CVE-2024-13111MEDIUMBeijing Yunfan Internet Technology Yunfan Learning Examination System JWT Token SysUserControl improper authenticationEPSS 0.8%CVE-2025-46548MEDIUMApache Pekko Management, Apache Pekko Management, Apache Pekko Management, Akka Management, Akka Management, Akka Management: management API basic authentication is not effectiveEPSS 0.8%CVE-2024-52786CRITICALAn authentication bypass vulnerability in anji-plus AJ-Report up to v1.4.2 allows unauthenticated attackers to execute arbitrary code via a EPSS 0.8%CVE-2022-22289MEDIUMImproper access control vulnerability in S Assistant prior to version 7.5 allows attacker to remotely get senstive information.EPSS 0.8%CVE-2026-120191MEDIUMPresenton API missing authenticationEPSS 0.8%CVE-2020-15240HIGHRegression in JWT Signature ValidationEPSS 0.8%CVE-2026-84840MEDIUMtsi-coop tsi-dpdp-cms Bootstrap Setup Endpoint InterceptingFilter.java missing authenticationEPSS 0.8%CVE-2023-38372MEDIUMIBM Watson IoT Platform information disclosureEPSS 0.8%CVE-2022-23505MEDIUMPassport-wsfed-saml2 vulnerable to Authentication Bypass for WSFed authenticationEPSS 0.8%