Falhas do tipo CWE-20

5.399 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-2021-43588MEDIUMDell EMC Data Protection Central version 19.5 contains an Improper Input Validation Vulnerability. A remote unauthenticated attacker could pEPSS 1.2%CVE-2022-3752HIGHRockwell Automation GuardLogix and ControlLogix controllers Vulnerable to Denial-Of-Service AttackEPSS 1.2%CVE-2021-41114MEDIUMHTTP Host Header Injection in Request Handling in Typo3EPSS 1.2%CVE-2021-4204—An out-of-bounds (OOB) memory access flaw was found in the Linux kernel's eBPF due to an Improper Input Validation. This flaw allows a localEPSS 1.2%CVE-2022-43515MEDIUMX-Forwarded-For header is active by default causes access to Zabbix sites in maintenance modeEPSS 1.2%CVE-2022-25885HIGHDenial of Service (DoS)EPSS 1.2%CVE-2026-82008CRITICALAdobe Campaign Classic (ACC) | Improper Input Validation (CWE-20)EPSS 1.2%CVE-2022-46363HIGHApache CXF directory listing / code exfiltrationEPSS 1.2%CVE-2019-3760MEDIUMThe RSA Identity Governance and Lifecycle software and RSA Via Lifecycle and Governance products prior to 7.1.0 P08 contain a SQL Injection EPSS 1.2%CVE-2020-3478HIGHCisco Enterprise NFV Infrastructure Software File Overwrite VulnerabilityEPSS 1.2%CVE-2020-3345MEDIUMCisco Webex Meetings and Cisco Webex Meetings Server HTML Injection VulnerabilityEPSS 1.2%CVE-2023-6245HIGHInfinite decoding loop through specially crafted payloadEPSS 1.2%CVE-2022-28763HIGHImproper URL parsing in Zoom ClientsEPSS 1.2%CVE-2018-10616—ABB Panel Builder 800 all versions has an improper input validation vulnerability which may allow an attacker to insert and run arbitrary coEPSS 1.2%CVE-2018-1078—OpenDayLight version Carbon SR3 and earlier contain a vulnerability during node reconciliation that can result in traffic flows that should EPSS 1.2%CVE-2021-44406HIGHA denial of service vulnerability exists in the cgiserver.cgi JSON command parser functionality of reolink RLC-410W v3.0.0.136_20121102. A sEPSS 1.2%CVE-2021-44389HIGHA denial of service vulnerability exists in the cgiserver.cgi JSON command parser functionality of reolink RLC-410W v3.0.0.136_20121102. A sEPSS 1.2%CVE-2021-44396HIGHA denial of service vulnerability exists in the cgiserver.cgi JSON command parser functionality of reolink RLC-410W v3.0.0.136_20121102. A sEPSS 1.2%CVE-2021-44395HIGHA denial of service vulnerability exists in the cgiserver.cgi JSON command parser functionality of reolink RLC-410W v3.0.0.136_20121102. A sEPSS 1.2%CVE-2021-44399HIGHA denial of service vulnerability exists in the cgiserver.cgi JSON command parser functionality of reolink RLC-410W v3.0.0.136_20121102. A sEPSS 1.2%