Fallos del tipo CWE-287

2802 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-2022-30995CRITICALSensitive information disclosure due to improper authentication. The following products are affected: Acronis Cyber Protect 15 (Windows, LinEPSS 3.3%CVE-2023-0905HIGHSourceCodester Employee Task Management System changePasswordForEmployee.php improper authenticationEPSS 3.2%CVE-2017-7562MEDIUMAn authentication bypass flaw was found in the way krb5's certauth interface before 1.16.1 handled the validation of client certificates. A EPSS 3.2%CVE-2017-12236—A vulnerability in the implementation of the Locator/ID Separation Protocol (LISP) in Cisco IOS XE 3.2 through 16.5 could allow an unauthentEPSS 3.1%CVE-2023-30869CRITICALWordPress Easy Digital Downloads Plugin 3.1-3.1.1.4.1 is vulnerable to Privilege EscalationEPSS 3.1%CVE-2021-34865HIGHThis vulnerability allows network-adjacent attackers to bypass authentication on affected installations of multiple NETGEAR routers. AuthentEPSS 3.1%CVE-2022-37298CRITICALShinken Solutions Shinken Monitoring Version 2.4.3 affected is vulnerable to Incorrect Access Control. The SafeUnpickler class found in shinEPSS 3.1%CVE-2020-3297HIGHCisco Small Business Smart and Managed Switches Session Management VulnerabilityEPSS 3.0%CVE-2021-25036—All In One SEO < 4.1.5.3 - Authenticated Privilege EscalationEPSS 3.0%CVE-2025-1104MEDIUMD-Link DHP-W310AV authentication spoofingEPSS 3.0%CVE-2020-8206—An improper authentication vulnerability exists in Pulse Connect Secure <9.1RB that allows an attacker with a users primary credentials to bEPSS 3.0%CVE-2017-14008—GE Centricity PACS RA1000, diagnostic image analysis, all current versions are affected these devices use default or hard-coded credentials.EPSS 3.0%CVE-2017-6869—A vulnerability was discovered in Siemens ViewPort for Web Office Portal before revision number 1453 that could allow an unauthenticated remEPSS 3.0%CVE-2018-14786—Becton, Dickinson and Company (BD) Alaris Plus medical syringe pumps (models Alaris GS, Alaris GH, Alaris CC, and Alaris TIVA) versions 2.3.EPSS 2.9%CVE-2026-80099HIGHVarious Newfold Plugins Various Versions - Unauthenticated Authentication Bypass via Bearer Token Validation with Empty SecretEPSS 2.9%CVE-2025-30287HIGHColdFusion | Improper Authentication (CWE-287)EPSS 2.9%CVE-2022-24882CRITICALServer side NTLM does not properly check parameters in FreeRDPEPSS 2.8%CVE-2022-21618MEDIUMVulnerability in the Oracle Java SE, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: JGSS). Supported versions that EPSS 2.8%CVE-2017-11429HIGHMultiple SAML libraries may allow authentication bypass via incorrect XML canonicalization and DOM traversalEPSS 2.7%CVE-2020-10918HIGHThis vulnerability allows remote attackers to bypass authentication on affected installations of C-MORE HMI EA9 Firmware version 6.52 touch EPSS 2.7%