Weaknesses of type CWE-290

721 results

Autenticação insuficiente contra falsificação de identidade

Ocorre quando o mecanismo de autenticação falha em validar corretamente a identidade do usuário ou cliente, permitindo que um atacante se passe por outra pessoa. A implementação não implementa verificações robustas (como criptografia, assinaturas digitais ou desafios aleatórios), deixando a autenticação vulnerável a spoofing.

Example

Um sistema de API que valida usuários apenas pelo campo 'nome de usuário' em um cabeçalho HTTP sem usar token, sessão ou assinatura criptográfica — um atacante altera o header e acessa dados de outros usuários. Ou um protocolo que aceita certificados autoassinados sem verificar a cadeia de confiança, autenticando servidores falsos.

How to mitigate

Use mecanismos de autenticação estabelecidos e testados: tokens JWT com assinatura, OAuth 2.0, ou mTLS. Sempre valide criptograficamente a identidade do cliente, nunca confie em cabeçalhos ou cookies não assinados. Implemente desafios multi-fator e revogue credenciais comprometidas rapidamente.

CVE-2025-27695MEDIUMDell Wyse Management Suite, versions prior to WMS 5.1 contain an Authentication Bypass by Spoofing vulnerability. A high privileged attackerEPSS 0.7%CVE-2024-36466HIGHUnauthenticated Zabbix frontend takeover when SSO is being usedEPSS 0.7%CVE-2023-48396CRITICALApache SeaTunnel Web: Authentication bypassEPSS 0.7%CVE-2026-17278CRITICALMultiple Vulnerabilities in IBM API ConnectEPSS 0.7%CVE-2026-58370CRITICALWoodpecker < 3.15.0 - GitLab Approval Gate Bypass via Spoofable Commit Author NameEPSS 0.7%CVE-2021-27854MEDIUML2 network filtering bypass using stacked VLAN0, LLC/SNAP headers, and Ethernet to Wifi frame translationEPSS 0.7%CVE-2025-25182CRITICALStroom Authentication/Authorization Bypass when using AWS ALBEPSS 0.7%CVE-2026-77337CRITICALCakePHP: Potential Authentication bypass with CookieAuthenticatorEPSS 0.7%CVE-2026-28812CRITICALApache JSPWiki: UserManager does not sanity-check user database at startupEPSS 0.7%CVE-2026-14450CRITICALMaas-billing: maas api: privilege escalation via forged http headers due to missing authenticationEPSS 0.7%CVE-2024-49193HIGHZendesk before 2024-07-02 allows remote attackers to read ticket history via e-mail spoofing, because Cc fields are extracted from incoming EPSS 0.7%CVE-2021-27862MEDIUML2 network filtering bypass using stacked VLAN0 and LLC/SNAP headers with an invalid length during Ethernet to Wifi frame translationEPSS 0.7%CVE-2023-22814CRITICALAuthentication Bypass issue in My Cloud OS 5 devicesEPSS 0.7%CVE-2022-40269MEDIUMAuthentication Bypass by Spoofing vulnerability in Mitsubishi Electric Corporation GOT2000 Series GT27 model versions 01.14.000 to 01.47.000EPSS 0.7%CVE-2024-1547MEDIUMThrough a series of API calls and redirects, an attacker-controlled alert dialog could have been displayed on another website (with the victEPSS 0.7%CVE-2026-80349CRITICALTarsWeb through 3.0.14 Authentication Bypass via Spoofed X-Forwarded-For and uid ParameterEPSS 0.7%CVE-2024-31008MEDIUMAn issue was discovered in WUZHICMS version 4.1.0, allows an attacker to execute arbitrary code and obtain sensitive information via the indEPSS 0.7%CVE-2026-18838CRITICALMultiple Vulnerabilities in IBM API ConnectEPSS 0.7%CVE-2025-59319HIGHCPSD CryptoPro Secure Disk for Bitlocker before v7.7.4 fails to certify the integrity of the intended boot partition and selects the first pEPSS 0.7%CVE-2024-39350HIGHA vulnerability regarding authentication bypass by spoofing is found in the RTSP functionality. This allows man-in-the-middle attackers to oEPSS 0.7%