Falhas do tipo CWE-307

534 resultados

Falta de proteção contra tentativas excessivas de autenticação

A aplicação não limita ou não desacelera tentativas de login, permitindo que um atacante teste múltiplas credenciais rapidamente (força bruta, dicionário ou spray de senhas). Sem controle, a conta fica vulnerável a comprometimento, especialmente se senhas fracas forem usadas.

Exemplo

Um endpoint de login que aceita 10 mil requisições por segundo sem nenhuma restrição. Um atacante automatiza tentativas com senhas comuns contra mil usuários até acertar credenciais válidas em poucos minutos.

Como mitigar

Implemente rate limiting (máximo de tentativas por IP/usuário em período curto), atrasos progressivos (backoff exponencial) após falhas, bloqueio temporário de conta após N tentativas, e idealmente autenticação multifator para reduzir o dano de senhas comprometidas.

CVE-2023-45149MEDIUMPassword of talk conversations can be bruteforced in NextcloudEPSS 0.6%CVE-2025-56221CRITICALA lack of rate limiting in the login mechanism of SigningHub v8.6.8 allows attackers to bypass authentication via a brute force attack.EPSS 0.6%CVE-2026-25945HIGHEV2GO ev2go.io Improper Restriction of Excessive Authentication AttemptsEPSS 0.6%CVE-2023-2675MEDIUMImproper Restriction of Excessive Authentication Attempts in linagora/twakeEPSS 0.6%CVE-2023-36917MEDIUMPassword Change rate limit bypass in SAP BusinessObjects Business Intelligence PlatformEPSS 0.6%CVE-2026-56450MEDIUMAIL Framework - Missing Rate Limiting Enables Brute-Force Attacks Against Two-Factor Authentication CodesEPSS 0.6%CVE-2026-14254HIGHImproper Restriction of Excessive Authentication Attempts in Delphix Continuous DataEPSS 0.6%CVE-2026-118505MEDIUMAshAuthentication brute_force_strategy does not limit sign-in and request actions defined on the resourceEPSS 0.6%CVE-2026-6223CRITICALOTP Bypass in Bahçelievler Muncipality's BiHayat AppEPSS 0.6%CVE-2024-49597HIGHDell Wyse Management Suite, versions WMS 4.4 and prior, contain an Improper Restriction of Excessive Authentication Attempts vulnerability. EPSS 0.6%CVE-2025-3709CRITICALFlowring Technology Agentflow - Account Lockout BypassEPSS 0.6%CVE-2026-19897MEDIUMmangroup dtale Login Endpoint auth.py login excessive authenticationEPSS 0.6%CVE-2026-6947HIGHD-Link｜DWM-222W USB Wi-Fi Adapter - Brute-Force Protection BypassEPSS 0.6%CVE-2024-51558CRITICALBrute Force Attack Vulnerability in Wave 2.0EPSS 0.6%CVE-2026-7671MEDIUMCodeWise Tornet Scooter Mobile App TwoFactor excessive authenticationEPSS 0.6%CVE-2026-33935HIGHMyTube has Unauthenticated Account Lockout via Shared Login Attempt StateEPSS 0.6%CVE-2024-45790CRITICALUser Enumeration vulnerabilityEPSS 0.6%CVE-2026-35098MEDIUMImproper Restriction of Excessive Authentication Attempts in KTM System e-BOKEPSS 0.6%CVE-2024-47088CRITICALUser Enumeration vulnerabilityEPSS 0.6%CVE-2026-32292CRITICALGL-iNet Comet (GL-RM1) KVM insufficient login rate-limitingEPSS 0.6%