Fallos del tipo CWE-305

168 resultados

Bypass de autenticação por fraqueza secundária

A autenticação em si é criptograficamente correta, mas pode ser contornada por outra vulnerabilidade no código ou na lógica da aplicação. Exemplo: validar corretamente a senha, mas aceitar um token expirado, ou checar credenciais mas não validar a origem da requisição. O risco é que o atacante não quebra o algoritmo — ele encontra uma porta dos fundos.

Ejemplo

Sistema que valida login com hash bcrypt impecável, mas depois aceita qualquer usuário se um parâmetro GET 'admin=true' estiver presente. Ou API que verifica JWT corretamente, mas esquece de validar se a sessão foi revogada no servidor.

Cómo mitigar

Revise toda a lógica de fluxo após a autenticação: não confie apenas no algoritmo criptográfico. Valide o contexto (origem, timestamp, revogação), execute testes de penetração focados em bypass (parâmetros extras, header manipulation, race conditions) e implemente lista de controle de acesso (ACL) robusta em cada endpoint sensível.

CVE-2023-6998HIGHLockscreen bypass in eWeLink AppEPSS 0.2%CVE-2024-12054MEDIUMZF Roll Stability Support Plus (RSSPlus) Authentication Bypass By Primary WeaknessEPSS 0.2%CVE-2025-31703LOWA vulnerability found in Dahua NVR/XVR device. A third-party malicious attacker with physical access to the device may gain access to a restEPSS 0.2%CVE-2026-9597MEDIUMDeactivated guest accounts can authenticate via magic-link token in Mattermost REST API login endpointEPSS 0.2%CVE-2022-39245HIGHMist vulnerable to user providing a Sudo binary for authentication checksEPSS 0.2%CVE-2026-19292HIGHBluetooth re-pairing with legitimate device can use lower security levelEPSS 0.2%CVE-2026-33892MEDIUMA vulnerability has been identified in Industrial Edge Management Pro V1 (All versions >= V1.7.6 < V1.15.17), Industrial Edge Management ProEPSS 0.2%CVE-2026-35159MEDIUMDell Client Platform BIOS contains an Authentication Bypass by Primary Weakness vulnerability. An unauthenticated attacker with physical accEPSS 0.2%CVE-2024-10394HIGHTheft of credentials in Unix client PAGsEPSS 0.2%CVE-2025-53167MEDIUMAuthentication vulnerability in the distributed collaboration framework module Impact: Successful exploitation of this vulnerability may affEPSS 0.2%CVE-2024-38433MEDIUMNuvoton - CWE-305: Authentication Bypass by Primary WeaknessEPSS 0.2%CVE-2025-31965HIGHHCL BigFix Remote Control is affected by an authorization bypass vulnerabilityEPSS 0.2%CVE-2022-38081MEDIUMTokensync in security subsystem has a permission bypass vulnerability. LAN attackers can bypass the distributed permission control.To take advantage of this weakness, attackers need another vulnerability to obtain system.EPSS 0.2%CVE-2026-41054HIGHMissing exit out of permission check in haveged could lead to root exploitEPSS 0.2%CVE-2022-38064MEDIUMwindowmanager in window subsystem has a permission bypass vulnerability. Local attackers can bypass permission control and get sensitive information.EPSS 0.2%CVE-2026-28536CRITICALAuthentication bypass vulnerability in the device authentication module. Impact: Successful exploitation of this vulnerability will affect iEPSS 0.2%CVE-2026-65935HIGHBypassing passkey entry in legacy pairingEPSS 0.2%CVE-2025-46750MEDIUMAuthentication BypassEPSS 0.2%CVE-2026-16895MEDIUMAuthentication Bypass in Metasploit JSON-RPC Service When DB Health Check FailsEPSS 0.2%CVE-2025-62772LOWOn Mercku M6a devices through 2.1.0, session tokens remain valid for at least months in some cases.EPSS 0.2%