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-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-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-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-2026-32203HIGH.NET and Visual Studio Denial of Service VulnerabilityEPSS 1.9%CVE-2024-4547CRITICALDelta Electronics DIAEnergie Unauthenticated SQL InjectionEPSS 1.9%CVE-2024-27894HIGHApache Pulsar: Pulsar Functions Worker Allows Unauthorized File Access and Unauthorized HTTP/HTTPS ProxyingEPSS 1.9%CVE-2023-25693CRITICALSqoop Apache Airflow Provider Remote Code Execution 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-2020-24679HIGHDenial of Service attack on Symphony PlusEPSS 1.9%CVE-2021-20247—A flaw was found in mbsync before v1.3.5 and v1.4.1. Validations of the mailbox names returned by IMAP LIST/LSUB do not occur allowing a malEPSS 1.9%CVE-2022-24828HIGHMissing input validation can lead to command execution in composerEPSS 1.9%CVE-2026-5946HIGHInvalid handling of CLASS != INEPSS 1.9%CVE-2020-16227—Delta Electronics TPEditor Versions 1.97 and prior. An improper input validation may be exploited by processing a specially crafted project EPSS 1.9%CVE-2021-26607HIGHTOBESOFT NEXACRO17 arbitrary command execution vulnerabilityEPSS 1.9%CVE-2023-51444HIGHGeoServer arbitrary file upload vulnerability in REST Coverage Store APIEPSS 1.9%