Fallos del tipo CWE-20

5399 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-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-2024-1359CRITICALCommand injection vulnerability was identified in GitHub Enterprise Server that allowed privilege escalation in the Mangement ConsoleEPSS 2.3%