Falhas do tipo CWE-287

2.418 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-2020-8267—A security issue was found in UniFi Protect controller v1.14.10 and earlier.The authentication in the UniFi Protect controller API was usingEPSS 1.3%CVE-2024-22245CRITICALArbitrary Authentication Relay Vulnerability in Deprecated EAP Browser PluginEPSS 1.3%CVE-2026-4252CRITICALTenda AC8 IPv6 check_is_ipv6 ip address for authenticationEPSS 1.3%CVE-2023-37471CRITICALUser impersonation using SAMLv1.x SSO in Open Access Management EPSS 1.3%CVE-2018-0195—A vulnerability in the Cisco IOS XE Software REST API could allow an authenticated, remote attacker to bypass API authorization checks and uEPSS 1.3%CVE-2021-39196HIGHAuthenticated non-privileged user can request unfiltered data without adequate permissions in pcaptureEPSS 1.3%CVE-2022-2553—The authfile directive in the booth config file is ignored, preventing use of authentication in communications from node to node. As a resulEPSS 1.3%CVE-2023-0773CRITICALUnauthorized Access Control Vulnerability in Uniview IP CameraEPSS 1.3%CVE-2024-45115CRITICALAdobe Commerce | Improper Authentication (CWE-287)EPSS 1.3%CVE-2024-36132HIGHInsufficient verification of authentication controls in EPMM prior to 12.1.0.1 allows a remote attacker to bypass authentication and access EPSS 1.2%CVE-2023-45038MEDIUMMusic StationEPSS 1.2%CVE-2023-48228HIGHOAuth2: PKCE can be fully circumventedEPSS 1.2%CVE-2007-1966CRITICALSession fixation vulnerability in eXV2 CMS 2.0.4.3 and earlier allows remote attackers to hijack web sessions by setting the PHPSESSID cookiEPSS 1.2%CVE-2021-39215HIGHAuthentication Bypass: Forged Tokens Allow Access to Arbitrary RoomsEPSS 1.2%CVE-2021-22858HIGHChanGate EnterPrise Co., Ltd property management system - Broken AuthenticationEPSS 1.2%CVE-2018-3775—Improper Authentication in Nextcloud Server prior to version 12.0.3 would allow an attacker that obtained user credentials to bypass the 2 FEPSS 1.2%CVE-2023-24831CRITICALApache IoTDB grafana-connector Login Bypass VulnerabilityEPSS 1.2%CVE-2026-26119HIGHWindows Admin Center Elevation of Privilege VulnerabilityEPSS 1.2%CVE-2023-6248CRITICALData leakage and arbitrary remote code execution in Syrus cloud devicesEPSS 1.2%CVE-2024-6248HIGHWyze Cam v3 Cloud Infrastructure Improper Authentication Remote Code Execution VulnerabilityEPSS 1.2%