Fallos del tipo CWE-20

5439 resultados

Validação inadequada de entrada

A aplicação recebe dados de fontes externas (usuário, API, arquivo) sem verificar se estão no formato, tamanho ou tipo esperado antes de usá-los. Isso permite que um atacante envie dados malformados ou maliciosos que podem causar erros, corrupção de dados, execução de código ou acesso não autorizado.

Ejemplo

Um formulário que aceita um número de idade sem validar se é um inteiro positivo entre 0 e 150. Um atacante envia idade=-5 ou idade='DROP TABLE users;' via SQL, e o código processa isso diretamente no banco sem sanitização, causando dano.

Cómo mitigar

Valide TODA entrada externa: verificar tipo, tamanho, formato e intervalo permitido antes de usar. Use whitelists (aceitar apenas valores conhecidos como seguros) em vez de blacklists, e aplique sanitização ou prepared statements para dados que vão em queries. Testes de entrada fuzzing também ajudam a encontrar gaps.

CVE-2024-23842HIGHHitron Systems DVR LGUVR-16H Improper Input Validation VulnerabilityEPSS 0.5%CVE-2021-33114MEDIUMImproper input validation for some Intel(R) PROSet/Wireless WiFi in multiple operating systems and Killer(TM) WiFi in Windows 10 and 11 may EPSS 0.5%CVE-2026-5174HIGHImproper Access Control Vulnerability in Progress MOVEit AutomationEPSS 0.5%CVE-2026-26935MEDIUMImproper Input Validation in Kibana Leading to Denial of ServiceEPSS 0.5%CVE-2017-7517LOWAn input validation vulnerability exists in Openshift Enterprise due to a 1:1 mapping of tenants in Hawkular Metrics and projects/namespacesEPSS 0.5%CVE-2026-39850HIGHYii 2: Local file inclusion via view parameter name collisionEPSS 0.5%CVE-2018-1099—DNS rebinding vulnerability found in etcd 3.3.1 and earlier. An attacker can control his DNS records to direct to localhost, and trick the bEPSS 0.5%CVE-2026-77710MEDIUMSTIX2 Parser Confusion and Mass Assignment Allow Unauthorized MISP Attribute Metadata Injection in misp-stix libraryEPSS 0.5%CVE-2026-45723LOWOmni: Operator can traverse image-factory API paths via unsanitized `talos_version` in CreateSchematicEPSS 0.5%CVE-2026-46910CRITICALVulnerability in the JD Edwards EnterpriseOne Tools product of Oracle JD Edwards (component: Enterprise Infrastructure Security). SupportedEPSS 0.5%CVE-2022-35972MEDIUMSegfault in `QuantizedBiasAdd` in TensorFlowEPSS 0.5%CVE-2022-3429MEDIUMA denial-of-service vulnerability was found in the firmware used in Lenovo printers, where users send illegal or malformed strings to an opeEPSS 0.5%CVE-2022-35967MEDIUMSegfault in `QuantizedAdd` in TensorFlowEPSS 0.5%CVE-2023-34422MEDIUMA valid, authenticated LXCA user with elevated privileges may be able to delete folders in the LXCA filesystem through a specifically crafteEPSS 0.5%CVE-2022-35964MEDIUMSegfault in `BlockLSTMGradV2` in TensorFlowEPSS 0.5%CVE-2024-21978MEDIUMImproper input validation in SEV-SNP could allow a malicious hypervisor to read or overwrite guest memory potentially leading to data leakagEPSS 0.5%CVE-2026-49475HIGHFreeSWITCH: Out-of-bounds memory access in core STUN attribute parsingEPSS 0.5%CVE-2026-30078HIGHOpenAirInterface V2.2.0 AMF crashes when it receives an NGAP message with invalid procedure code or invalid PDU-type. For example when the mEPSS 0.5%CVE-2023-34421MEDIUMA valid, authenticated LXCA user with elevated privileges may be able to replace filesystem data through a specifically crafted web API callEPSS 0.5%CVE-2022-48605—Input verification vulnerability in the fingerprint module. Successful exploitation of this vulnerability will affect confidentiality, integEPSS 0.5%