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-2022-32534HIGHOS Command InjectionEPSS 2.5%CVE-2016-9578HIGHA vulnerability was discovered in SPICE before 0.13.90 in the server's protocol handling. An attacker able to connect to the SPICE server coEPSS 2.5%CVE-2026-5509HIGHArbitrary Command Injection via Browser Developer Console in TP-Link Archer BE450 and BE7200EPSS 2.5%CVE-2021-32566—Specific sequence of HTTP/2 frames can cause ATS to crashEPSS 2.4%CVE-2021-32567—Reading HTTP/2 frames too many timesEPSS 2.4%CVE-2020-24427LOWAcrobat Reader DC Codec Input Validation Vulnerability Could Lead to Information DisclosureEPSS 2.4%CVE-2024-38230MEDIUMWindows Standards-Based Storage Management Service Denial of Service VulnerabilityEPSS 2.4%CVE-2019-1616HIGHCisco NX-OS Software Cisco Fabric Services Denial of Service VulnerabilityEPSS 2.4%CVE-2021-26606CRITICALDreamSecurity MagicLine Buffer Overflow VulnerabilityEPSS 2.4%CVE-2026-2113MEDIUMyuan1994 tpadmin WebUploader preview.php deserializationEPSS 2.4%CVE-2018-4832—A vulnerability has been identified in OpenPCS 7 V7.1 and earlier (All versions), OpenPCS 7 V8.0 (All versions), OpenPCS 7 V8.1 (All versionEPSS 2.4%CVE-2018-1102—A flaw was found in source-to-image function as shipped with Openshift Enterprise 3.x. An improper path validation of tar files in ExtractTaEPSS 2.4%CVE-2018-0295—A vulnerability in the Border Gateway Protocol (BGP) implementation of Cisco NX-OS Software could allow an unauthenticated, remote attacker EPSS 2.4%CVE-2018-5447—An Improper Input Validation issue was discovered in Nari PCS-9611 relay. An improper input validation vulnerability has been identified thaEPSS 2.4%CVE-2021-26624HIGHeScan Anti-Virus Local privilege escalation VulnerabilityEPSS 2.4%CVE-2022-24818HIGHUnchecked JNDI lookups in GeoToolsEPSS 2.4%CVE-2021-36034CRITICALMagento Commerce Improper Input Validation Could Lead To Remote Code ExecutionEPSS 2.4%CVE-2021-36041CRITICALMagento Commerce Improper Input Validation Could Lead To Remote Code ExecutionEPSS 2.4%CVE-2021-3943—A flaw was found in Moodle in versions 3.11 to 3.11.3, 3.10 to 3.10.7, 3.9 to 3.9.10 and earlier unsupported versions. A remote code executiEPSS 2.4%CVE-2024-5989CRITICALRockwell Automation ThinManager® ThinServer™ Improper Input Validation VulnerabilityEPSS 2.4%