Falhas do tipo CWE-287

2.849 resultados

Autenticação Insuficiente ou Ausente

Quando um usuário ou sistema afirma ser quem diz que é, a aplicação não valida (ou valida mal) essa identidade antes de conceder acesso. Isso permite que um atacante se passe por outra pessoa sem fornecer credenciais válidas, obtendo privilégios indevidos.

Exemplo

Um sistema que aceita login apenas verificando um campo de e-mail na sessão (sem senha), ou uma API que confia em um identificador de usuário enviado no header HTTP sem validar um token assinado. Um atacante simplesmente muda o valor e acessa dados de terceiros.

Como mitigar

Implemente autenticação robusta: exija senha forte + MFA quando possível, valide tokens com assinatura criptográfica, revoque sessões expiradas, e nunca confie em dados controlados pelo cliente. Teste autenticação em cada endpoint crítico.

CVE-2018-0087—A vulnerability in the FTP server of the Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to log in to theEPSS 1.8%CVE-2018-15721—The XMPP server in Logitech Harmony Hub before version 4.15.206 is vulnerable to authentication bypass via a crafted XMPP request. Remote atEPSS 1.8%CVE-2025-30282CRITICALColdFusion | Improper Authentication (CWE-287)EPSS 1.8%CVE-2018-4836—A vulnerability has been identified in TeleControl Server Basic < V3.1. An authenticated attacker with a low-privileged account to the TeleCEPSS 1.8%CVE-2022-35925MEDIUMMissing rate limit in Authentication in bookwyrmEPSS 1.8%CVE-2019-1662HIGHCisco Prime Collaboration Assurance Software Unauthenticated Access VulnerabilityEPSS 1.8%CVE-2016-2124—A flaw was found in the way samba implemented SMB1 authentication. An attacker could use this flaw to retrieve the plaintext password sent oEPSS 1.8%CVE-2020-4074HIGHImproper AuthenticationEPSS 1.8%CVE-2021-43445CRITICALONLYOFFICE all versions as of 2021-11-08 is affected by Incorrect Access Control. An attacker can authenticate with the web socket service oEPSS 1.7%CVE-2025-55169CRITICALWeGIA Path Traversal at endpoint 'html/socio/sistema/download_remessa.php' via parameter 'file'EPSS 1.7%CVE-2017-14026—In Ice Qube Thermal Management Center versions prior to version 4.13, the web application does not properly authenticate users which may allEPSS 1.7%CVE-2021-31349CRITICALSession Smart Router: Authentication Bypass VulnerabilityEPSS 1.7%CVE-2023-2706HIGHOTP Login Woocommerce & Gravity Forms <= 2.2 - Authentication Bypass to Privilege EscalationEPSS 1.7%CVE-2020-25165—BD Alaris PC Unit, Model 8015, Versions 9.33.1 and earlier and BD Alaris Systems Manager, Versions 4.33 and earlier The affected products arEPSS 1.7%CVE-2023-47504MEDIUMWordPress Elementor plugin <= 3.16.4 - Auth. Arbitrary Attachment Read vulnerabilityEPSS 1.7%CVE-2021-21378HIGHJWT authentication bypass with unknown issuer tokenEPSS 1.7%CVE-2020-8253—Improper authentication in Citrix XenMobile Server 10.12 before RP2, Citrix XenMobile Server 10.11 before RP4, Citrix XenMobile Server 10.10EPSS 1.7%CVE-2021-41157MEDIUMFreeSWITCH does not authenticate SIP SUBSCRIBE requests by defaultEPSS 1.7%CVE-2020-25719—A flaw was found in the way Samba, as an Active Directory Domain Controller, implemented Kerberos name-based authentication. The Samba AD DCEPSS 1.7%CVE-2021-36368LOWAn issue was discovered in OpenSSH before 8.9. If a client is using public-key authentication with agent forwarding but without -oLogLevel=vEPSS 1.7%