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-2021-37150MEDIUMProtocol vs scheme mismatchEPSS 2.1%CVE-2026-33116HIGH.NET, .NET Framework, and Visual Studio Denial of Service VulnerabilityEPSS 2.1%CVE-2019-1760MEDIUMCisco IOS XE Software Performance Routing Version 3 Denial of Service VulnerabilityEPSS 2.1%CVE-2023-36697MEDIUMMicrosoft Message Queuing (MSMQ) Remote Code Execution VulnerabilityEPSS 2.1%CVE-2017-12217—A vulnerability in the General Packet Radio Service (GPRS) Tunneling Protocol ingress packet handler of Cisco ASR 5500 System Architecture EEPSS 2.1%CVE-2019-18995MEDIUMABB PB610 HMISimulator does not check content-length of the HTTP requestEPSS 2.1%CVE-2017-12328—A vulnerability in Session Initiation Protocol (SIP) call handling in Cisco IP Phone 8800 Series devices could allow an unauthenticated, remEPSS 2.1%CVE-2021-28170—In the Jakarta Expression Language implementation 3.0.3 and earlier, a bug in the ELParserTokenManager enables invalid EL expressions to be EPSS 2.1%CVE-2021-1404HIGHClam AntiVirus (ClamAV) Email Parser Denial of Service VulnerabilityEPSS 2.1%CVE-2018-15415—Cisco Webex Network Recording Player and Cisco Webex Player Remote Code Execution VulnerabilitiesEPSS 2.1%CVE-2018-15417—Cisco Webex Network Recording Player and Cisco Webex Player Remote Code Execution VulnerabilitiesEPSS 2.1%CVE-2018-15414—Cisco Webex Network Recording Player Remote Code Execution VulnerabilitiesEPSS 2.1%CVE-2018-15420—Cisco Webex Network Recording Player and Cisco Webex Player Remote Code Execution VulnerabilitiesEPSS 2.1%CVE-2018-15416—Cisco Webex Network Recording Player and Cisco Webex Player Remote Code Execution VulnerabilitiesEPSS 2.1%CVE-2018-15412—Cisco Webex Network Recording Player and Cisco Webex Player Remote Code Execution VulnerabilitiesEPSS 2.1%CVE-2018-15408—Cisco Webex Network Recording Player and Cisco Webex Player Remote Code Execution VulnerabilitiesEPSS 2.1%CVE-2018-15413—Cisco Webex Network Recording Player and Cisco Webex Player Remote Code Execution VulnerabilitiesEPSS 2.1%CVE-2024-6089HIGHRockwell Automation Major nonrecoverable fault in 5015 – AENFTXTEPSS 2.1%CVE-2018-10891MEDIUMA flaw was found in moodle before versions 3.5.1, 3.4.4, 3.3.7, 3.1.13. When a quiz question bank is imported, it was possible for the questEPSS 2.1%CVE-2021-33592—NAVER Toolbar before 4.0.30.323 allows remote attackers to execute arbitrary code via a crafted upgrade.xml file. Special characters in fileEPSS 2.1%