Falhas do tipo CWE-287

2.850 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-2022-39249HIGHMatrix Javascript SDK vulnerable to impersonation via forwarded Megolm sessionsEPSS 1.3%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 1.3%CVE-2026-36829CRITICALAn authentication bypass vulnerability exists in the embedded HTTP server of Panabit PAP-XM320 up to and including v7.7. The server validateEPSS 1.3%CVE-2020-14504MEDIUMThe web interface of the 1734-AENTR communication module mishandles authentication for HTTP POST requests. A remote, unauthenticated attackeEPSS 1.3%CVE-2024-21390HIGHMicrosoft Authenticator Elevation of Privilege VulnerabilityEPSS 1.3%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-2026-9830HIGHBookingPress Pro < 5.7.3 - Unauthenticated Customer PII Disclosure and Booking Tampering via Permission Callback BugEPSS 1.3%CVE-2024-22245CRITICALArbitrary Authentication Relay Vulnerability in Deprecated EAP Browser PluginEPSS 1.3%CVE-2026-15981CRITICALSAML Single Sign On <= 5.4.4 - Unauthenticated Authentication Bypass via SAMLResponse ParameterEPSS 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-2024-45115CRITICALAdobe Commerce | Improper Authentication (CWE-287)EPSS 1.3%CVE-2022-38119CRITICALPOWERCOM CO., LTD. UPSMON PRO - Broken AuthenticationEPSS 1.2%CVE-2023-48228HIGHOAuth2: PKCE can be fully circumventedEPSS 1.2%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-2023-0773CRITICALUnauthorized Access Control Vulnerability in Uniview IP CameraEPSS 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%