Weaknesses of type CWE-307

484 results

Falta de Proteção contra Tentativas Excessivas de Autenticação

É a ausência de mecanismos que limitam o número de tentativas de login ou autenticação em um curto período. Um atacante pode fazer força bruta (testar muitas senhas ou códigos) sem ser bloqueado, permitindo descobrir credenciais válidas ou contornar fatores de autenticação como OTP.

Example

Um sistema de login não bloqueia a conta após 5 tentativas erradas nem implementa delay progressivo. Um atacante automático testa 10 mil combinações de senha em minutos contra um usuário-alvo e consegue acesso. Ou um atacante bruta-força códigos de 2FA sem que o sistema limite as tentativas.

How to mitigate

Implemente bloqueio ou throttling: limitar tentativas (ex: máx 5 por minuto), aumentar delay entre tentativas, bloquear conta temporariamente após falhas consecutivas, usar CAPTCHA após N tentativas, e registrar/alertar sobre picos de tentativas suspeitas.

CVE-2022-32515HIGHA CWE-307: Improper Restriction of Excessive Authentication Attempts vulnerability exists that could cause brute force attacks to take over EPSS 0.6%CVE-2023-0574MEDIUMServer-Side Request ForgeryEPSS 0.6%CVE-2024-43042CRITICALPluck CMS 4.7.18 does not restrict failed login attempts, allowing attackers to execute a brute force attack.EPSS 0.6%CVE-2022-43377HIGH A CWE-307: Improper Restriction of Excessive Authentication Attempts vulnerability exists that could cause account takeover when a brutEPSS 0.6%CVE-2023-29005HIGHNo Rate Limiting on Login AUTH DBEPSS 0.6%CVE-2025-8927MEDIUMmtons mblog Verification Code send_code excessive authenticationEPSS 0.6%CVE-2023-1665HIGHImproper Restriction of Excessive Authentication Attempts in linagora/twakeEPSS 0.6%CVE-2026-8760CRITICALLogin with OTP <= 1.6 - Unauthenticated Authentication Bypass via OTP Brute ForceEPSS 0.6%CVE-2023-1539MEDIUMImproper Restriction of Excessive Authentication Attempts in answerdev/answerEPSS 0.6%CVE-2023-50123HIGHThe number of attempts to bring the Hozard Alarm system (alarmsystemen) v1.0 to a disarmed state is not limited. This could allow an attackeEPSS 0.6%CVE-2026-91973HIGHVikunja before 2.6.0 Authentication Bypass via CalDAV BasicAuthEPSS 0.6%CVE-2022-23746HIGHThe IPsec VPN blade has a dedicated portal for downloading and connecting through SSL Network Extender (SNX). If the portal is configured foEPSS 0.6%CVE-2024-39917HIGHxrdp allows an ininite number of login attemptsEPSS 0.6%CVE-2025-11441MEDIUMJhumanJ OpnForm HTTP Header excessive authenticationEPSS 0.6%CVE-2023-25818MEDIUMMissing brute force protection on password reset token in Nextcloud ServerEPSS 0.6%CVE-2026-27778HIGHePower epower.ie Improper Restriction of Excessive Authentication AttemptsEPSS 0.6%CVE-2023-46745MEDIUMRate limiting Bypass on login page in libreNMSEPSS 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-2022-2457MEDIUMA flaw was found in Red Hat Process Automation Manager 7 where an attacker can benefit from a brute force attack against Administration ConsEPSS 0.6%CVE-2023-2675MEDIUMImproper Restriction of Excessive Authentication Attempts in linagora/twakeEPSS 0.6%