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-2023-3273HIGHImproper Access Control in the SICK ICR890-4 could allow an unauthenticated remote attacker to affect the availability of the device by chanEPSS 1.1%CVE-2021-3992MEDIUMImproper Access Control in kevinpapst/kimai2EPSS 1.1%CVE-2020-3312MEDIUMCisco Firepower Threat Defense Software Information Disclosure VulnerabilityEPSS 1.1%CVE-2022-27185CRITICALA denial of service vulnerability exists in the confctl_set_master_wlan functionality of TCL LinkHub Mesh Wifi MS1G_00_01.00_14. A speciallyEPSS 1.1%CVE-2022-27660CRITICALA denial of service vulnerability exists in the confctl_set_guest_wlan functionality of TCL LinkHub Mesh Wi-Fi MS1G_00_01.00_14. A speciallyEPSS 1.1%CVE-2023-47539CRITICALAn improper access control vulnerability in FortiMail version 7.4.0 configured with RADIUS authentication and remote_wildcard enabled may alEPSS 1.1%CVE-2023-35179HIGH2FA/MFA Bypass Vulnerability in Serv-U 15.4 EPSS 1.1%CVE-2020-7578—A vulnerability has been identified in Camstar Enterprise Platform (All versions), Opcenter Execution Core (All versions < V8.2). AuthenticaEPSS 1.1%CVE-2021-0232HIGHParagon Active Assurance: Authentication bypass vulnerability in Control CenterEPSS 1.1%CVE-2023-39349HIGHSentry vulnerable to privilege escalation via ApiTokensEndpointEPSS 1.1%CVE-2025-24241CRITICALA configuration issue was addressed with additional restrictions. This issue is fixed in macOS Sequoia 15.4, macOS Sonoma 14.7.5, macOS VentEPSS 1.1%CVE-2017-6866—A vulnerability was discovered in Siemens XHQ server 4 and 5 (4 before V4.7.1.3 and 5 before V5.0.0.2) that could allow an authenticated lowEPSS 1.1%CVE-2025-10093MEDIUMD-Link DIR-852 Device Configuration getcfg.php phpcgi_main information disclosureEPSS 1.1%CVE-2023-25775MEDIUMImproper access control in the Intel(R) Ethernet Controller RDMA driver for linux before version 1.9.30 may allow an unauthenticated user toEPSS 1.1%CVE-2024-32418CRITICALAn issue in flusity CMS v2.33 allows a remote attacker to execute arbitrary code via the add_addon.php component.EPSS 1.1%CVE-2019-15589—An improper access control vulnerability exists in Gitlab <v12.3.2, <v12.2.6, <v12.1.12 which would allow a blocked user would be able to usEPSS 1.1%CVE-2021-39333HIGHHashthemes Demo Importer <= 1.1.1 Improper Access Control Allowing Content DeletionEPSS 1.1%CVE-2026-47301HIGHConfiguration Manager Elevation of Privilege VulnerabilityEPSS 1.0%CVE-2024-43477HIGHMicrosoft Entra ID Elevation of Privilege VulnerabilityEPSS 1.0%CVE-2021-22853MEDIUMSoar Cloud System Co., Ltd. HR Portal - Broken Access ControlEPSS 1.0%