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-2020-4062HIGHImproper Access Control in Conjur OSS Helm ChartEPSS 1.4%CVE-2025-3668MEDIUMTOTOLINK A3700R cstecgi.cgi setScheduleCfg access controlEPSS 1.4%CVE-2025-32714HIGHWindows Installer Elevation of Privilege VulnerabilityEPSS 1.4%CVE-2020-12493CRITICALCritical Vulnerability in SWARCO CPU LS4000EPSS 1.4%CVE-2019-3942—Advantech WebAccess 8.3.4 does not properly restrict an RPC call that allows unauthenticated, remote users to read files. An attacker can usEPSS 1.4%CVE-2023-38167HIGHMicrosoft Dynamics 365 Business Central Elevation of Privilege VulnerabilityEPSS 1.4%CVE-2019-6140—A configuration issue has been discovered in Forcepoint Email Security 8.4.x and 8.5.x: the product is left in a vulnerable state if the hybEPSS 1.4%CVE-2019-5487—An improper access control vulnerability exists in Gitlab EE <v12.3.3, <v12.2.7, & <v12.1.13 that allowed the group search feature with ElasEPSS 1.4%CVE-2019-7475—A vulnerability in SonicWall SonicOS and SonicOSv with management enabled system on specific configuration allow unprivileged user to accessEPSS 1.4%CVE-2023-50783—Apache Airflow: Improper access control vulnerability on the "varimport" endpointEPSS 1.4%CVE-2021-40112CRITICALCisco Catalyst PON Series Switches Optical Network Terminal VulnerabilitiesEPSS 1.4%CVE-2018-10612—In 3S-Smart Software Solutions GmbH CODESYS Control V3 products prior to version 3.5.14.0, user access management and communication encryptiEPSS 1.4%CVE-2020-25701—If the upload course tool in Moodle was used to delete an enrollment method which did not exist or was not already enabled, the tool would eEPSS 1.4%CVE-2020-13675—Drupal's JSON:API and REST/File modules allow file uploads through their HTTP APIs. The modules do not correctly run all file validation, whEPSS 1.4%CVE-2026-31843CRITICALgoodoneuz/pay-uz Unauthenticated PHP File Overwrite via /payment/api/editable/update Leading to Remote Code ExecutionEPSS 1.4%CVE-2023-45209MEDIUMAn information disclosure vulnerability exists in the web interface /cgi-bin/download_config.cgi functionality of Peplink Smart Reader v1.2.EPSS 1.4%CVE-2020-3482MEDIUMCisco Expressway Software Unauthorized Access Information Disclosure VulnerabilityEPSS 1.4%CVE-2020-3186MEDIUMCisco Firepower Threat Defense Software Management Access List Bypass VulnerabilityEPSS 1.4%CVE-2018-15631MEDIUMImproper access control in the Discuss App of Odoo Community 12.0 and earlier, and Odoo Enterprise 12.0 and earlier allows remote authenticaEPSS 1.4%CVE-2023-36722MEDIUMActive Directory Domain Services Information Disclosure VulnerabilityEPSS 1.4%