Fallos del tipo CWE-20

5887 resultados

Validação inadequada de entrada

A aplicação recebe dados de fontes externas (usuário, API, arquivo) sem verificar se estão no formato, tamanho ou tipo esperado antes de usá-los. Isso permite que um atacante envie dados malformados ou maliciosos que podem causar erros, corrupção de dados, execução de código ou acesso não autorizado.

Ejemplo

Um formulário que aceita um número de idade sem validar se é um inteiro positivo entre 0 e 150. Um atacante envia idade=-5 ou idade='DROP TABLE users;' via SQL, e o código processa isso diretamente no banco sem sanitização, causando dano.

Cómo mitigar

Valide TODA entrada externa: verificar tipo, tamanho, formato e intervalo permitido antes de usar. Use whitelists (aceitar apenas valores conhecidos como seguros) em vez de blacklists, e aplique sanitização ou prepared statements para dados que vão em queries. Testes de entrada fuzzing também ajudam a encontrar gaps.

CVE-2023-36873HIGH.NET Framework Spoofing VulnerabilityEPSS 1.5%CVE-2018-12478MEDIUMobs-service-replace_using_package_version allows to specify arbitrary input filesEPSS 1.5%CVE-2022-26889HIGHPath Traversal in search parameter results in external content injectionEPSS 1.5%CVE-2025-30471HIGHA validation issue was addressed with improved logic. This issue is fixed in iOS 18.4 and iPadOS 18.4, iPadOS 17.7.6, macOS Sequoia 15.4, maEPSS 1.5%CVE-2018-1000037MEDIUMIn Artifex MuPDF 1.12.0 and earlier, multiple reachable assertions in the PDF parser allow an attacker to cause a denial of service (assert EPSS 1.5%CVE-2022-20745HIGHCisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Interface Denial of Service VulnerabilityEPSS 1.5%CVE-2024-23263HIGHA logic issue was addressed with improved validation. This issue is fixed in Safari 17.4, iOS 16.7.6 and iPadOS 16.7.6, iOS 17.4 and iPadOS EPSS 1.5%CVE-2023-24856HIGHMicrosoft PostScript and PCL6 Class Printer Driver Information Disclosure VulnerabilityEPSS 1.5%CVE-2019-1789HIGHClamAV Denial of Service VulnerabilityEPSS 1.5%CVE-2020-3444MEDIUMCisco SD-WAN Software Packet Filtering Bypass VulnerabilityEPSS 1.5%CVE-2019-1909MEDIUMCisco IOS XR Software Border Gateway Protocol Denial of Service VulnerabilityEPSS 1.5%CVE-2019-12701MEDIUMCisco Firepower Management Center Software File and Malware Policy Bypass VulnerabilityEPSS 1.5%CVE-2024-3096MEDIUMPHP function password_verify can erroneously return true when argument contains NULEPSS 1.5%CVE-2022-25885HIGHDenial of Service (DoS)EPSS 1.5%CVE-2019-1786HIGHClam AntiVirus PDF Out-of-Bounds Read VulnerabilityEPSS 1.5%CVE-2008-2173HIGHUnspecified vulnerability in Yamaha routers allows remote attackers to cause a denial of service (dropped session) via crafted BGP UPDATE meEPSS 1.5%CVE-2008-2169HIGHUnspecified vulnerability in Avici routers allows remote attackers to cause a denial of service (dropped session) via crafted BGP UPDATE mesEPSS 1.5%CVE-2020-15228LOWEnvironment Variable Injection in GitHub ActionsEPSS 1.5%CVE-2008-2170HIGHUnspecified vulnerability in Century routers allows remote attackers to cause a denial of service (dropped session) via crafted BGP UPDATE mEPSS 1.5%CVE-2023-25927MEDIUMIBM Security Verify Access denial of serviceEPSS 1.5%