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-2019-13541—In Horner Automation Cscape 9.90 and prior, an improper input validation vulnerability has been identified that may be exploited by processiEPSS 1.9%CVE-2019-10191MEDIUMA vulnerability was discovered in DNS resolver of knot resolver before version 4.1.0 which allows remote attackers to downgrade DNSSEC-securEPSS 1.9%CVE-2024-46901LOWApache Subversion: mod_dav_svn denial-of-service via control characters in pathsEPSS 1.9%CVE-2020-3128HIGHCisco Webex Network Recording Player and Cisco Webex Player Arbitrary Code Execution VulnerabilitiesEPSS 1.9%CVE-2022-39312CRITICALDataease Mysql Data Source JDBC Connection Parameters Not Verified Leads to Deserialization VulnerabilityEPSS 1.9%CVE-2017-6792—A vulnerability in the batch provisioning feature in Cisco Prime Collaboration Provisioning Tool could allow an authenticated, remote attackEPSS 1.9%CVE-2019-1947HIGHCisco Email Security Appliance Denial of Service VulnerabilityEPSS 1.9%CVE-2020-27253—A flaw exists in the Ingress/Egress checks routine of FactoryTalk Linx Version 6.11 and prior. This vulnerability could allow a remote, unauEPSS 1.9%CVE-2018-1086MEDIUMpcs before versions 0.9.164 and 0.10 is vulnerable to a debug parameter removal bypass. REST interface of the pcsd service did not properly EPSS 1.9%CVE-2019-19298HIGHA vulnerability has been identified in SiNVR/SiVMS Video Server (All versions < V5.0.0), SiNVR/SiVMS Video Server (All versions >= V5.0.0 < EPSS 1.9%CVE-2023-25693CRITICALSqoop Apache Airflow Provider Remote Code Execution VulnerabilityEPSS 1.9%CVE-2024-27894HIGHApache Pulsar: Pulsar Functions Worker Allows Unauthorized File Access and Unauthorized HTTP/HTTPS ProxyingEPSS 1.9%CVE-2024-4547CRITICALDelta Electronics DIAEnergie Unauthenticated SQL InjectionEPSS 1.9%CVE-2026-32203HIGH.NET and Visual Studio Denial of Service VulnerabilityEPSS 1.9%CVE-2020-3172HIGHCisco FXOS and NX-OS Software Cisco Discovery Protocol Arbitrary Code Execution and Denial of Service VulnerabilityEPSS 1.9%CVE-2020-2011HIGHPAN-OS: Panorama registration denial of serviceEPSS 1.9%CVE-2020-28591HIGHAn out-of-bounds read vulnerability exists in the AMF File AMFParserContext::endElement() functionality of Slic3r libslic3r 1.3.0 and MasterEPSS 1.9%CVE-2026-86679HIGHBroken Access Control vulnerabilityEPSS 1.9%CVE-2022-24828HIGHMissing input validation can lead to command execution in composerEPSS 1.9%CVE-2020-24679HIGHDenial of Service attack on Symphony PlusEPSS 1.9%