Falhas do tipo CWE-20

5.393 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-2020-10693MEDIUMA flaw was found in Hibernate Validator version 6.1.2.Final. A bug in the message interpolation processor enables invalid EL expressions to EPSS 2.4%CVE-2024-1378CRITICALCommand injection vulnerability was identified in GitHub Enterprise Server that allowed privilege escalation in the Mangement ConsoleEPSS 2.3%CVE-2017-6763—A vulnerability in the implementation of the H.264 protocol in Cisco Meeting Server (CMS) 2.1.4 could allow an unauthenticated, remote attacEPSS 2.3%CVE-2026-47928CRITICALColdFusion | Improper Input Validation (CWE-20)EPSS 2.3%CVE-2022-28129—Insufficient Validation of HTTP/1.x HeadersEPSS 2.3%CVE-2018-18999—WebAccess/SCADA, WebAccess/SCADA Version 8.3.2 installed on Windows 2008 R2 SP1. Lack of proper validation of user supplied input may allow EPSS 2.3%CVE-2024-20670HIGHOutlook for Windows Spoofing VulnerabilityEPSS 2.3%CVE-2011-4124—Input validation issues were found in Calibre at devices/linux_mount_helper.c which can lead to argument injection and elevation of privilegEPSS 2.3%CVE-2018-0139—A vulnerability in the Interactive Voice Response (IVR) management connection interface for Cisco Unified Customer Voice Portal (CVP) could EPSS 2.3%CVE-2019-1711MEDIUMCisco IOS XR gRPC Software Denial of Service VulnerabilityEPSS 2.3%CVE-2018-0260—A vulnerability in the web interface of Cisco MATE Live could allow an unauthenticated, remote attacker to view and download the contents ofEPSS 2.3%CVE-2022-31780—HTTP/2 framing vulnerabilitiesEPSS 2.3%CVE-2021-3482—A flaw was found in Exiv2 in versions before and including 0.27.4-RC1. Improper input validation of the rawData.size property in Jp2Image::rEPSS 2.3%CVE-2021-36030HIGHMagento Commerce Improper Input Validation During Checkout Process Could Lead To Privilege EscalationEPSS 2.3%CVE-2025-32706HIGHWindows Common Log File System Driver Elevation of Privilege VulnerabilityEPSS 2.3%KEVCVE-2018-15453HIGHCisco Email Security Appliance Memory Corruption Denial of Service VulnerabilityEPSS 2.3%CVE-2018-8869—In Lantech IDS 2102 2.0 and prior, nearly all input fields allow for arbitrary input on the device. A CVSS v3 base score of 9.8 has been calEPSS 2.3%CVE-2023-39553HIGHApache Airflow Drill Provider Arbitrary File Read VulnerabilityEPSS 2.3%CVE-2020-3147HIGHCisco Small Business Switches Denial of Service VulnerabilityEPSS 2.3%CVE-2024-1372CRITICALCommand injection vulnerability was identified in GitHub Enterprise Server that allowed privilege escalation in the Mangement ConsoleEPSS 2.3%