Falhas do tipo CWE-640

195 resultados

Mecanismo fraco de recuperação de senha

A aplicação oferece um fluxo de recuperação de senha (esqueci minha senha) que é facilmente contornável ou previsível. Um atacante pode adivinhar perguntas de segurança, interceptar links de reset, reusar tokens, ou explorar validações fracas para assumir contas alheias sem conhecer a senha original.

Exemplo

Um site envia um link de reset de senha por e-mail, mas o token nunca expira e é simplesmente o ID do usuário codificado em base64. Um atacante pode reutilizar tokens antigos ou gerar novos para qualquer usuário, resetando suas senhas à vontade.

Como mitigar

Implemente tokens de reset com alta entropia, validade curta (15-30 min), uso único, e vinculação ao IP/sessão. Valide a identidade antes do reset (OTP, e-mail de confirmação, desafio adaptativo). Registre e monitore tentativas anormais de recuperação.

CVE-2023-7028CRITICALWeak Password Recovery Mechanism for Forgotten Password in GitLabEPSS 94.6%KEVCVE-2025-6216CRITICALAllegra calculateTokenExpDate Password Recovery Authentication Bypass VulnerabilityEPSS 34.5%CVE-2025-47646CRITICALWordPress PSW Front-end Login & Registration plugin <= 1.13 - Broken Authentication VulnerabilityEPSS 24.3%CVE-2021-22763CRITICALA CWE-640: Weak Password Recovery Mechanism for Forgotten Password vulnerability exists in PowerLogic PM55xx, PowerLogic PM8ECC, PowerLogic EPSS 1.9%CVE-2018-16529—A password reset vulnerability has been discovered in Forcepoint Email Security 8.5.x. The password reset URL can be used after the intendedEPSS 1.6%CVE-2022-29174HIGHPredictable password reset token may lead to account takeover in countly-serverEPSS 1.4%CVE-2021-22731—Weak Password Recovery Mechanism for Forgotten Password vulnerability exists on Modicon Managed Switch MCSESM* and MCSESP* V8.21 and prior wEPSS 1.4%CVE-2024-8878CRITICALUnauthenticated Password ResetEPSS 1.3%CVE-2022-0777HIGHWeak Password Recovery Mechanism for Forgotten Password in microweber/microweberEPSS 1.2%CVE-2022-44004CRITICALAn issue was discovered in BACKCLICK Professional 5.9.63. Due to insecure design or lack of authentication, unauthenticated attackers can coEPSS 1.2%CVE-2023-30466CRITICALAuthentication Bypass Vulnerability in Milesight Network Video Recorder (NVR)EPSS 1.1%CVE-2019-6560—In Auto-Maskin RP210E Versions 3.7 and prior, DCU210E Versions 3.7 and prior and Marine Observer Pro (Android App), the software contains a EPSS 1.1%CVE-2026-7554MEDIUMD-Link M60 httpd password recoveryEPSS 1.1%CVE-2021-25957HIGHAccount Takeover in "Dolibarr" via Password Reset FunctionalityEPSS 1.1%CVE-2023-3007MEDIUMningzichun Student Management System Password Reset resetPassword.php password recoveryEPSS 1.0%CVE-2023-36487—The password reset function in ILIAS 7.0_beta1 through 7.20 and 8.0_beta1 through 8.1 allows remote attackers to take over the account.EPSS 1.0%CVE-2025-41251HIGHWeak password recovery vulnerabilityEPSS 1.0%CVE-2022-22691MEDIUMUmbraco Password Reset URL PoisonEPSS 1.0%CVE-2021-36804MEDIUMAkaunting Password Reset RelayEPSS 1.0%CVE-2021-25961HIGHSuiteCRM - Account Takeover in Password Reset FunctionalityEPSS 1.0%