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-2016-8651LOWAn input validation flaw was found in the way OpenShift 3 handles requests for images. A user, with a copy of the manifest associated with aEPSS 1.4%CVE-2020-15174HIGHUnpreventable top-level navigation in ElectronEPSS 1.4%CVE-2020-3358HIGHCisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers SSL Denial of Service VulnerabilityEPSS 1.4%CVE-2023-39532CRITICALSES's dynamic import and spread operator provides possible path to arbitrary exfiltration and executionEPSS 1.3%CVE-2021-1262HIGHCisco SD-WAN Command Injection VulnerabilitiesEPSS 1.3%CVE-2019-1886HIGHCisco Web Security Appliance HTTPS Certificate Denial of Service VulnerabilityEPSS 1.3%CVE-2022-3001HIGHVulnerability in Milesight Video Management Systems (VMS)EPSS 1.3%CVE-2021-32642HIGHMissing input validation in dynamic discovery example scripts.EPSS 1.3%CVE-2020-28590HIGHAn out-of-bounds read vulnerability exists in the Obj File TriangleMesh::TriangleMesh() functionality of Slic3r libslic3r 1.3.0 and Master CEPSS 1.3%CVE-2021-40423HIGHA denial of service vulnerability exists in the cgiserver.cgi API command parser functionality of Reolink RLC-410W v3.0.0.136_20121102. A spEPSS 1.3%CVE-2023-30447MEDIUMIBM Db2 denial of serviceEPSS 1.3%CVE-2023-30446MEDIUMIBM Db2 denial of serviceEPSS 1.3%CVE-2021-32759HIGHData Flow Sanitation Issue FixEPSS 1.3%CVE-2021-1464MEDIUMCisco SD-WAN vManage Authorization Bypass VulnerabilityEPSS 1.3%CVE-2025-31672MEDIUMApache POI: parsing OOXML based files (xlsx, docx, etc.), poi-ooxml could read unexpected data if underlying zip has duplicate zip entry namesEPSS 1.3%CVE-2021-42787CRITICALDirectory Traversal Write/Delete/Partial Read at AgentConfigurationServletEPSS 1.3%CVE-2022-47894MEDIUMApache Zeppelin SAP: connecting to a malicious SAP server allowed it to perform XXEEPSS 1.3%CVE-2024-41116CRITICALRemote code execution in streamlit geospatial in pages/1_📷_Timelapse.py MODIS Ocean Color SMI option vis_paramsEPSS 1.3%CVE-2024-41117CRITICALRemote code execution in streamlit geospatial in pages/10_🌍_Earth_Engine_Datasets.pyEPSS 1.3%CVE-2022-45470HIGHApache Hama allows XSS and information disclosureEPSS 1.3%