Falhas do tipo CWE-20

5.847 resultados

Validação inadequada de entrada

A aplicação recebe dados do usuário ou de fontes externas mas não valida (ou valida mal) se esses dados têm as propriedades necessárias para processamento seguro. Isso abre porta para injeção de código, buffer overflow, lógica corrompida e outros ataques que exploram dados malformados ou maliciosos.

Exemplo

Um formulário web aceita um CPF sem verificar se tem 11 dígitos numéricos, ou um app móvel recebe um ID de usuário em JSON sem confirmar se é um inteiro — atacantes exploram isso para acessar dados de outros usuários, executar queries SQL maliciosas ou causar erro de processamento.

Como mitigar

Implemente validação rigorosa na entrada: verifique tipo, comprimento, formato, intervalo de valores permitidos. Use whitelist (aceitar só o que você sabe ser seguro) em vez de blacklist. Valide tanto no cliente quanto no servidor, e use bibliotecas de parsing seguro para formatos complexos (XML, JSON).

CVE-2024-21319MEDIUMMicrosoft Identity Denial of service vulnerabilityEPSS 2.9%CVE-2023-35349CRITICALMicrosoft Message Queuing (MSMQ) Remote Code Execution VulnerabilityEPSS 2.9%CVE-2026-93567HIGHIo.netty/netty-codec-http2: http/1 authority-form connect is translated to malformed http/2 connect with host-controlled :authorityEPSS 2.9%CVE-2018-15430—Cisco Expressway Series and Cisco TelePresence Video Communication Server Remote Code Execution VulnerabilityEPSS 2.9%CVE-2022-30168HIGHMicrosoft Photos App Remote Code Execution VulnerabilityEPSS 2.9%CVE-2021-36040CRITICALMagento Commerce Improper Input Validation Could Lead To Remote Code ExecutionEPSS 2.9%CVE-2022-40898HIGHAn issue discovered in Python Packaging Authority (PyPA) Wheel 0.37.1 and earlier allows remote attackers to cause a denial of service via aEPSS 2.8%CVE-2024-26197MEDIUMWindows Standards-Based Storage Management Service Denial of Service VulnerabilityEPSS 2.8%CVE-2022-41942HIGHSourcegraph vulnerable to Comand Injection via gitserverEPSS 2.8%CVE-2021-42009—Apache Traffic Control Traffic Ops Email Injection VulnerabilityEPSS 2.8%CVE-2020-6656MEDIUMFile parsing Type Confusion Remote code execution vulerabilityEPSS 2.8%CVE-2024-2426HIGHRockwell Automation - Denial-of-service and Input Validation Vulnerabilities in PowerFlex® 527EPSS 2.8%CVE-2024-2425HIGHRockwell Automation - Denial-of-service and Input Validation Vulnerabilities in PowerFlex® 527EPSS 2.8%CVE-2021-36025CRITICALMagento Commerce Customer Edition Improper Input Validation Could Lead To Remote Code ExecutionEPSS 2.8%CVE-2021-36035CRITICALMagento Commerce Stock Media Improper Input Validation Could Lead To Remote Code ExecutionEPSS 2.8%CVE-2020-11999—FactoryTalk Linx versions 6.00, 6.10, and 6.11, RSLinx Classic v4.11.00 and prior,Connected Components Workbench: Version 12 and prior, ContEPSS 2.8%CVE-2019-5464—A flawed DNS rebinding protection issue was discovered in GitLab CE/EE 10.2 and later in the `url_blocker.rb` which could result in SSRF wheEPSS 2.8%CVE-2023-35797CRITICALApache Airflow Hive Provider Beeline RCE with PrincipalEPSS 2.8%CVE-2021-22768CRITICALA CWE-20: Improper Input Validation vulnerability exists in PowerLogic EGX100 (Versions 3.0.0 and newer) and PowerLogic EGX300 (All VersionsEPSS 2.8%CVE-2021-22765CRITICALA CWE-20: Improper Input Validation vulnerability exists in PowerLogic EGX100 (Versions 3.0.0 and newer) and PowerLogic EGX300 (All VersionsEPSS 2.8%