Weaknesses of type CWE-20

5,361 results

Validação inadequada de entrada

O software recebe dados do usuário ou de fontes externas, mas não verifica ou verifica de forma incompleta se esses dados têm as propriedades necessárias para processar com segurança. Isso permite que entradas malformadas, maliciosas ou inesperadas passem por controles e causem comportamentos indevidos — desde crashes até injeção de código.

Example

Uma aplicação web recebe um parâmetro numérico via GET, mas não valida se é realmente um número inteiro válido antes de usá-lo em uma consulta SQL. Um atacante envia um valor com caracteres especiais (ex: `1' OR '1'='1`), conseguindo injetar código SQL direto no banco de dados.

How to mitigate

Implemente validação rigorosa na entrada: defina o tipo, formato, comprimento e intervalo esperados; rejeite tudo que não se encaixe. Use listas de caracteres permitidos ('whitelist'), escape de dados para o contexto específico (SQL, HTML, URL) e bibliotecas de validação consolidadas. Nunca confie em dados do cliente.

CVE-2017-2617HIGHhawtio before version 1.5.5 is vulnerable to remote code execution via file upload. An attacker could use this vulnerability to upload a craEPSS 1.7%CVE-2019-15288HIGHCisco TelePresence Collaboration Endpoint, TelePresence Codec, and RoomOS Software Privilege Escalation VulnerabilityEPSS 1.7%CVE-2018-12479MEDIUMRequest controller allows to create requests with arbitrary request IDsEPSS 1.7%CVE-2020-3170MEDIUMCisco NX-OS Software NX-API Denial of Service VulnerabilityEPSS 1.7%CVE-2018-15449MEDIUMCisco Video Surveillance Media Server Denial of Service VulnerabilityEPSS 1.7%CVE-2024-3646HIGHCommand injection vulnerability was identified in GitHub Enterprise Server that allowed privilege escalation in the Management ConsoleEPSS 1.7%CVE-2018-0117—A vulnerability in the ingress packet processing functionality of the Cisco Virtualized Packet Core-Distributed Instance (VPC-DI) Software cEPSS 1.7%CVE-2020-3496MEDIUMCisco Small Business Smart and Managed Switches Denial of Service VulnerabilityEPSS 1.7%CVE-2018-20225HIGHAn issue was discovered in pip (all versions) because it installs the version with the highest version number, even if the user had intendedEPSS 1.7%CVE-2023-21816HIGHWindows Active Directory Domain Services API Denial of Service VulnerabilityEPSS 1.7%CVE-2017-12215—A vulnerability in the email message filtering feature of Cisco AsyncOS Software for the Cisco Email Security Appliance could allow an unautEPSS 1.7%CVE-2018-6589—CA Spectrum 10.1 prior to 10.01.02.PTF_10.1.239 and 10.2.x prior to 10.2.3 allows remote attackers to cause a denial of service via unspecifEPSS 1.7%CVE-2022-35724—Denial of service while reading data in Avro Rust SDKEPSS 1.7%CVE-2017-9022HIGHThe gmp plugin in strongSwan before 5.5.3 does not properly validate RSA public keys before calling mpz_powm_sec, which allows remote peers EPSS 1.7%CVE-2023-36407HIGHWindows Hyper-V Elevation of Privilege VulnerabilityEPSS 1.7%CVE-2024-31865MEDIUMApache Zeppelin: Cron arbitrary user impersonation with improper privilegesEPSS 1.7%CVE-2024-1354HIGHCommand injection vulnerability was identified in GitHub Enterprise Server that allowed privilege escalation in the Mangement ConsoleEPSS 1.7%CVE-2021-32795MEDIUMDenial of Service via Steam chat in ArchiSteamFarmEPSS 1.7%CVE-2019-6555—Cscape, 9.80 SP4 and prior. An improper input validation vulnerability may be exploited by processing specially crafted POC files. This may EPSS 1.7%CVE-2022-28711MEDIUMA memory corruption vulnerability exists in the cgi.c unescape functionality of ArduPilot APWeb master branch 50b6b7ac - master branch 46177EPSS 1.7%