Fallos del tipo CWE-287

2806 resultados

Autenticação inadequada ou ausente

A aplicação não valida ou valida de forma insuficiente a identidade de quem tenta acessá-la. Quando um usuário diz ser quem é, o sistema acredita sem verificar corretamente, permitindo que atacantes se façam passar por outros usuários ou contas legítimas.

Ejemplo

Um sistema que aceita login apenas com nome de usuário, sem senha. Ou uma API que confia no header 'User-ID' enviado pelo cliente sem validar se aquele usuário realmente existe ou tem sessão ativa. Um atacante simplesmente altera o header e acessa dados de outra conta.

Cómo mitigar

Implemente autenticação robusta: exija múltiplos fatores (senha forte + MFA), valide credenciais contra base de dados segura, use sessões com token assinado e com expiração, nunca confie em dados enviados pelo cliente como prova de identidade. Revise regularmente logs de acesso para detectar abusos.

CVE-2026-8979CRITICALAuthentication BypassEPSS 0.8%CVE-2022-39184CRITICALEXFO - BV-10 Performance Endpoint Unit Authentication bypassEPSS 0.8%CVE-2023-3065CRITICALMobatime mobile application - Authentication bypassEPSS 0.8%CVE-2026-14714MEDIUMzhayujie chatgpt-on-wechat CowAgent wx Endpoint common.py verify_server missing authenticationEPSS 0.8%CVE-2026-112595HIGHThis issue was addressed with improved authentication. This issue is fixed in iOS 27.2 and iPadOS 27.2, macOS Golden Gate 27.2, tvOS 27.2. AEPSS 0.8%CVE-2022-32514CRITICALA CWE-287: Improper Authentication vulnerability exists that could allow an attacker to gain control of the device when logging into a web pEPSS 0.8%CVE-2024-10963HIGHPam: improper hostname interpretation in pam_access leads to access control bypassEPSS 0.8%CVE-2025-4494MEDIUMJAdmin-JAVA JAdmin Admin Backend NoNeedLoginController.java toLogin improper authenticationEPSS 0.8%CVE-2022-31131MEDIUMOwnership check missing when updating or deleting mail attachments in Nextcloud mailEPSS 0.8%CVE-2024-25313HIGHCode-projects Simple School Managment System 1.0 allows Authentication Bypass via the username and password parameters at School/teacher_logEPSS 0.8%CVE-2024-1817HIGHDemososo DM Enterprise Website Building System Cookie indexDM_load.php dmlogin improper authenticationEPSS 0.8%CVE-2022-21692MEDIUMImproper Access Control in OnionshareEPSS 0.8%CVE-2021-3424—A flaw was found in keycloak as shipped in Red Hat Single Sign-On 7.4 where IDN homograph attacks are possible. A malicious user can registeEPSS 0.8%CVE-2026-17000HIGHVulnerabilities in IBM AIX and PowerVM VIOSEPSS 0.8%CVE-2022-43549CRITICALImproper authentication in Veeam Backup for Google Cloud v1.0 and v3.0 allows attackers to bypass authentication mechanisms.EPSS 0.8%CVE-2026-84839MEDIUMtsi-coop tsi-dpdp-cms Admin Console/DPO Compliance Console web.xml missing authenticationEPSS 0.8%CVE-2024-7012CRITICALPuppet-foreman: an authentication bypass vulnerability exists in foremanEPSS 0.8%CVE-2025-14567MEDIUMhaxxorsid Stock-Management-System employees missing authenticationEPSS 0.8%CVE-2025-45777CRITICALAn issue in the OTP mechanism of Chavara Family Welfare Centre Chavara Matrimony Site v2.0 allows attackers to bypass authentication via supEPSS 0.8%CVE-2026-79395CRITICALAn improper authentication vulnerability in the WS-Security (wsse:UsernameToken) verification routine within the Sofia IPC daemon in XiongmaEPSS 0.8%