Falhas do tipo CWE-276

952 resultados

Permissões padrão incorretas

Ocorre quando um recurso (arquivo, diretório, registro, objeto) é criado com permissões padrão que são muito permissivas, permitindo acesso não autorizado. O código não define explicitamente permissões restritivas, deixando o sistema usar padrões inseguros que muitas vezes permitem leitura ou escrita por usuários não previstos.

Exemplo

Um aplicativo cria um arquivo de configuração com credenciais em /tmp/config.ini sem definir permissões — o sistema deixa o arquivo legível por qualquer usuário local (644), expondo senhas. Ou um diretório de upload recebe 777 como padrão, permitindo que qualquer pessoa execute scripts maliciosos nele.

Como mitigar

Sempre defina permissões explícitas e restritivas no momento da criação (umask 0077 para sensíveis, validar permissões em código). Para arquivos com secrets, use 0600 (apenas proprietário); para diretórios de aplicação, 0755 no máximo. Valide periodicamente permissões em produção e documente o modelo de acesso esperado.

CVE-2024-45690HIGHMoodle: idor when deleting oauth2 linked accountsEPSS 0.4%CVE-2020-8026HIGHinn: non-root owned filesEPSS 0.4%CVE-2024-28058HIGHIn RSA NetWitness (NW) Platform before 12.5.1, even when an administrator revokes the access of a specific user with an active session, an iEPSS 0.4%CVE-2023-46870HIGHextcap/nrf_sniffer_ble.py, extcap/nrf_sniffer_ble.sh, extcap/SnifferAPI/*.py in Nordic Semiconductor nRF Sniffer for Bluetooth LE 3.0.0, 3.1EPSS 0.4%CVE-2023-29058MEDIUMA valid, authenticated XCC user with read-only permissions can modify custom user roles on other user accounts and the user trespass messageEPSS 0.4%CVE-2026-26131HIGH.NET Elevation of Privilege VulnerabilityEPSS 0.4%CVE-2018-11453—A vulnerability has been identified in SIMATIC STEP 7 (TIA Portal) and WinCC (TIA Portal) V10, V11, V12 (All versions), SIMATIC STEP 7 (TIA EPSS 0.4%CVE-2025-43507MEDIUMA privacy issue was addressed by moving sensitive data. This issue is fixed in iOS 18.7.2 and iPadOS 18.7.2, iOS 26.1 and iPadOS 26.1, macOSEPSS 0.4%CVE-2024-26302MEDIUMA vulnerability in the web-based management interface of ClearPass Policy Manager could allow a remote attacker authenticated with low priviEPSS 0.4%CVE-2024-21002LOWVulnerability in the Oracle Java SE, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: JavaFX). Supported versions thEPSS 0.4%CVE-2024-21004LOWVulnerability in the Oracle Java SE, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: JavaFX). Supported versions thEPSS 0.4%CVE-2021-27285HIGHAn issue was discovered in Inspur ClusterEngine v4.0 that allows attackers to gain escalated Local privileges and execute arbitrary commandsEPSS 0.4%CVE-2020-8933CRITICALPriviged Escalation in Google Cloud Platform's Guest-OSLoginEPSS 0.4%CVE-2023-5042MEDIUMSensitive information disclosure due to insecure folder permissions. The following products are affected: Acronis Cyber Protect Home Office EPSS 0.4%CVE-2025-62661MEDIUMDo permission checking when getting counts of global and local edits, new articles and thanksEPSS 0.4%CVE-2024-1156HIGHIncorrect directory permissions for the shared NI RabbitMQ service may allow a local authenticated user to read RabbitMQ configuration inforEPSS 0.4%CVE-2020-37129HIGHMemu Play 7.1.3 - Insecure Folder PermissionsEPSS 0.4%CVE-2024-30415CRITICALVulnerability of improper permission control in the window management module. Impact: Successful exploitation of this vulnerability will affEPSS 0.4%CVE-2023-52362HIGHPermission management vulnerability in the lock screen module.Successful exploitation of this vulnerability may affect availability.EPSS 0.4%CVE-2023-52545HIGHVulnerability of undefined permissions in the Calendar app. Impact: Successful exploitation of this vulnerability will affect availability.EPSS 0.4%