Falhas do tipo CWE-203

398 resultados

Discrepância Observável em Comportamento

Ocorre quando o sistema exibe comportamentos ou mensagens diferentes dependendo de informações secretas (senha, token, chave), permitindo que um atacante deduza essas informações através de análise de resposta. O perigo está em vazar conhecimento que deveria ser privado por meio de canais laterais, como tempo de resposta, mensagens de erro ou mudanças visuais.

Exemplo

Um formulário de login que retorna 'Usuário não existe' para usuários inválidos e 'Senha incorreta' para usuários válidos com senha errada. Um atacante usa essas mensagens diferentes para enumerar contas válidas sem nunca adivinhar a senha correta.

Como mitigar

Padronize respostas do sistema: retorne sempre a mesma mensagem genérica (ex: 'Credenciais inválidas') e o mesmo tempo de resposta, independentemente de qual parte falhou. Use técnicas como constant-time comparison para operações sensíveis e evite vazar informações através de timing, códigos HTTP diferenciados ou feedback textual discriminador.

CVE-2022-34477HIGHThe MediaError message property should be consistent to avoid leaking information about cross-origin resources; however for a same-site crosEPSS 0.6%CVE-2025-11443MEDIUMJhumanJ OpnForm Forgotten Password email information exposureEPSS 0.6%CVE-2024-9398MEDIUMBy checking the result of calls to `window.open` with specifically set protocol handlers, an attacker could determine if the application whiEPSS 0.6%CVE-2024-22647MEDIUMAn user enumeration vulnerability was found in SEO Panel 4.10.0. This issue occurs during user authentication, where a difference in error mEPSS 0.6%CVE-2024-50382MEDIUMBotan before 3.6.0, when certain LLVM versions are used, has compiler-induced secret-dependent control flow in lib/utils/ghash/ghash.cpp in EPSS 0.5%CVE-2024-50383MEDIUMBotan before 3.6.0, when certain GCC versions are used, has a compiler-induced secret-dependent operation in lib/utils/donna128.h in donna12EPSS 0.5%CVE-2023-26560MEDIUMNorthern.tech CFEngine Enterprise before 3.21.1 allows a subset of authenticated users to leverage the Scheduled Reports feature to read arbEPSS 0.5%CVE-2023-6935MEDIUMMarvin Attack vulnerability in SP Math All RSAEPSS 0.5%CVE-2026-53933MEDIUMMaravel-Framework Vulnerable to Side-Channel Information Disclosure (Error Oracle) via Dynamic Route FuzzingEPSS 0.5%CVE-2026-97782MEDIUMMicrosoft Office SharePoint Tampering VulnerabilityEPSS 0.5%CVE-2024-26268MEDIUMUser enumeration vulnerability in Liferay Portal 7.2.0 through 7.4.3.26, and older unsupported versions, and Liferay DXP 7.4 before update 2EPSS 0.5%CVE-2025-31124MEDIUMZitadel allows User Enumeration by loginname attribute normalizationEPSS 0.5%CVE-2023-3529MEDIUMRotem Dynamics Rotem CRM OTP URI Interface information exposureEPSS 0.5%CVE-2026-44332MEDIUMFiber: Username Enumeration via Timing Oracle in BasicAuth Default AuthorizerEPSS 0.5%CVE-2023-24598—OX App Suite before backend 7.10.6-rev37 has an information leak in the handling of distribution lists, e.g., partial disclosure of the privEPSS 0.5%CVE-2022-26382MEDIUMWhile the text displayed in Autofill tooltips cannot be directly read by JavaScript, the text was rendered using page fonts. Side-channel atEPSS 0.5%CVE-2023-37482MEDIUMThe login functionality of the web server in affected devices does not normalize the response times of login attempts. An unauthenticated reEPSS 0.5%CVE-2026-55555LOWDompdf: File existence oracle via font-face stylesheet declarationEPSS 0.5%CVE-2026-26315MEDIUMGo Ethereum Improperly Validates the ECIES Public Key in RLPx HandshakeEPSS 0.5%CVE-2021-46876MEDIUMAn issue was discovered in eZ Publish Ibexa Kernel before 7.5.15.1. The /user/sessions endpoint can be abused to determine account existenceEPSS 0.5%