Falhas do tipo CWE-287

2.803 resultados

Autenticação Insuficiente ou Ausente

Quando um usuário ou sistema afirma ser quem diz que é, a aplicação não valida (ou valida mal) essa identidade antes de conceder acesso. Isso permite que um atacante se passe por outra pessoa sem fornecer credenciais válidas, obtendo privilégios indevidos.

Exemplo

Um sistema que aceita login apenas verificando um campo de e-mail na sessão (sem senha), ou uma API que confia em um identificador de usuário enviado no header HTTP sem validar um token assinado. Um atacante simplesmente muda o valor e acessa dados de terceiros.

Como mitigar

Implemente autenticação robusta: exija senha forte + MFA quando possível, valide tokens com assinatura criptográfica, revoque sessões expiradas, e nunca confie em dados controlados pelo cliente. Teste autenticação em cada endpoint crítico.

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%