Falhas do tipo CWE-284

7.967 resultados

Controle de acesso inadequado a recursos

A aplicação falha em validar ou aplica incorretamente as restrições de acesso, permitindo que usuários não autorizados acessem dados ou funcionalidades que deveriam estar protegidas. É uma das fragilidades mais comuns em segurança: o código não verifica corretamente quem está pedindo acesso e simplesmente concede.

Exemplo

Um e-commerce que permite acessar o perfil de qualquer cliente substituindo o ID na URL (ex: /usuario/123 → /usuario/124), sem validar se o usuário autenticado é o dono daquele perfil. Um atacante consegue ver dados pessoais, histórico de compras e endereços de outras pessoas.

Como mitigar

Implemente verificações explícitas em cada acesso a recurso: autentique o usuário, identifique qual recurso ele quer acessar, e valide se as permissões dele cobrem aquele recurso específico. Use listas de controle de acesso (ACLs) ou papéis (RBAC/ABAC) consistentemente em toda a API ou aplicação, nunca deixando a segurança implícita.

CVE-2023-24028CRITICALIn MISP 2.4.167, app/Controller/Component/ACLComponent.php has incorrect access control for the decaying import function.EPSS 0.7%CVE-2021-4089MEDIUMImproper Access Control in snipe/snipe-itEPSS 0.7%CVE-2024-28922MEDIUMSecure Boot Security Feature Bypass VulnerabilityEPSS 0.7%CVE-2021-36913HIGHRedirection for Contact Form 7 <= 2.4.0 - Unauthenticated Options Change and Content Injection vulnerabilityEPSS 0.7%CVE-2021-3062HIGHPAN-OS: Improper Access Control Vulnerability Exposing AWS Instance Metadata Endpoint to GlobalProtect UsersEPSS 0.7%CVE-2024-6221MEDIUMImproper Access Control in corydolphin/flask-corsEPSS 0.7%CVE-2020-26080MEDIUMCisco IoT Field Network Director Improper Domain Access Control VulnerabilityEPSS 0.7%CVE-2024-27855HIGHThe issue was addressed with improved checks. This issue is fixed in iOS 16.7.8 and iPadOS 16.7.8, iOS 17.5 and iPadOS 17.5, macOS Sonoma 14EPSS 0.7%CVE-2022-39946HIGHAn access control vulnerability [CWE-284] in FortiNAC version 9.4.2 and below, version 9.2.7 and below, 9.1 all versions, 8.8 all versions, EPSS 0.7%CVE-2022-25932HIGHThe firmware of InHand Networks InRouter302 V3.5.45 introduces fixes for TALOS-2022-1472 and TALOS-2022-1474. The fixes are incomplete. An aEPSS 0.7%CVE-2024-24830CRITICALOpenObserve Privilege Escalation Vulnerability in Users APIEPSS 0.7%CVE-2021-4300MEDIUMghostlander Halcyon Block Verification main.cpp AddToBlockIndex access controlEPSS 0.7%CVE-2023-37267HIGHUmbraco allows possible Admin-level access to backoffice without Auth under rare conditionsEPSS 0.7%CVE-2024-40117CRITICALIncorrect access control in Solar-Log 1000 before v2.8.2 and build 52- 23.04.2013 allows attackers to obtain Administrative privileges via cEPSS 0.7%CVE-2026-54213CRITICALTeamDavid: Denial of Service via endpoint 'internalRestart'EPSS 0.7%CVE-2025-1606MEDIUMSourceCodester Best Employee Management System backups.php information disclosureEPSS 0.7%CVE-2025-4535MEDIUMGosuncn Technology Group Audio-Visual Integrated Management Platform Configuration File config.properties information disclosureEPSS 0.7%CVE-2019-1695MEDIUMCisco Adaptive Security Appliance and Firepower Threat Defense Software Layer 2 Filtering Bypass VulnerabilityEPSS 0.7%CVE-2025-4536MEDIUMGosuncn Technology Group Audio-Visual Integrated Management Platform listByPage information disclosureEPSS 0.7%CVE-2021-21964HIGHA denial of service vulnerability exists in the Modbus configuration functionality of Sealevel Systems, Inc. SeaConnect 370W v1.3.34. SpeciaEPSS 0.7%