Fallos del tipo CWE-20

5887 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-2022-31020HIGHRemote code execution in Indy's NODE_UPGRADE transactionEPSS 2.3%CVE-2011-4124—Input validation issues were found in Calibre at devices/linux_mount_helper.c which can lead to argument injection and elevation of privilegEPSS 2.3%CVE-2021-35995LOWAdobe After Effects MP4 File Parsing Uninitialized Variable Information Disclosure VulnerabilityEPSS 2.3%CVE-2018-0139—A vulnerability in the Interactive Voice Response (IVR) management connection interface for Cisco Unified Customer Voice Portal (CVP) could EPSS 2.3%CVE-2025-26647HIGHWindows Kerberos Elevation of Privilege VulnerabilityEPSS 2.3%CVE-2019-1711MEDIUMCisco IOS XR gRPC Software Denial of Service VulnerabilityEPSS 2.3%CVE-2021-36030HIGHMagento Commerce Improper Input Validation During Checkout Process Could Lead To Privilege EscalationEPSS 2.3%CVE-2020-5243MEDIUMDenial of Service in uap-core when processing crafted User-Agent stringsEPSS 2.3%CVE-2018-15453HIGHCisco Email Security Appliance Memory Corruption Denial of Service VulnerabilityEPSS 2.3%CVE-2023-39553HIGHApache Airflow Drill Provider Arbitrary File Read VulnerabilityEPSS 2.3%CVE-2020-3147HIGHCisco Small Business Switches Denial of Service VulnerabilityEPSS 2.3%CVE-2022-42837CRITICALAn issue existed in the parsing of URLs. This issue was addressed with improved input validation. This issue is fixed in iOS 16.2 and iPadOSEPSS 2.3%CVE-2024-1372CRITICALCommand injection vulnerability was identified in GitHub Enterprise Server that allowed privilege escalation in the Mangement ConsoleEPSS 2.3%CVE-2024-1369CRITICALCommand injection vulnerability was identified in GitHub Enterprise Server that allowed privilege escalation in the Mangement ConsoleEPSS 2.3%CVE-2024-1359CRITICALCommand injection vulnerability was identified in GitHub Enterprise Server that allowed privilege escalation in the Mangement ConsoleEPSS 2.3%CVE-2020-7526—Improper Input Validation vulnerability exists in PowerChute Business Edition (software V9.0.x and earlier) which could cause remote code exEPSS 2.3%CVE-2018-0369—A vulnerability in the reassembly logic for fragmented IPv4 packets of Cisco StarOS running on virtual platforms could allow an unauthenticaEPSS 2.3%CVE-2019-3581HIGHMcAfee Web Gateway denial of service attack due to Improper Input ValidationEPSS 2.3%CVE-2019-1691MEDIUMCisco Firepower Threat Defense Software SSL or TLS Denial of Service VulnerabilityEPSS 2.3%CVE-2020-8255—A vulnerability in the Pulse Connect Secure < 9.1R9 admin web interface could allow an authenticated attacker to perform an arbitrary file rEPSS 2.3%