Falhas do tipo CWE-20

5.393 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-2023-3466HIGHReflected Cross-Site Scripting (XSS) EPSS 2.6%CVE-2023-52137HIGHGitHub Action tj-actions/verify-changed-files is vulnerable to command injection in output filenamesEPSS 2.6%CVE-2023-36707MEDIUMWindows Deployment Services Denial of Service VulnerabilityEPSS 2.6%CVE-2024-2424HIGHRockwell Automation Input/Output Device Vulnerable to Major Nonrecoverable FaultEPSS 2.6%CVE-2020-1714HIGHA flaw was found in Keycloak before version 11.0.0, where the code base contains usages of ObjectInputStream without type checks. This flaw EPSS 2.6%CVE-2022-24098HIGHAdobe Photoshop PCX File Parsing Memory Corruption Remote Code Execution VulnerabilityEPSS 2.6%CVE-2018-10926HIGHA flaw was found in RPC request using gfs3_mknod_req supported by glusterfs server. An authenticated attacker could use this flaw to write fEPSS 2.6%CVE-2021-37149—Request Smuggling - multiple attacksEPSS 2.6%CVE-2021-37148—Request Smuggling - transfer encoding validationEPSS 2.6%CVE-2020-3454HIGHCisco NX-OS Software Call Home Command Injection VulnerabilityEPSS 2.6%CVE-2018-14663MEDIUMAn issue has been found in PowerDNS DNSDist before 1.3.3 allowing a remote attacker to craft a DNS query with trailing data such that the adEPSS 2.6%CVE-2022-45875CRITICALApache DolphinScheduler: Remote command execution Vulnerability in script alert pluginEPSS 2.5%CVE-2019-1598HIGHCisco FXOS and NX-OS Lightweight Directory Access Protocol Denial of Service VulnerabilitiesEPSS 2.5%CVE-2019-1597HIGHCisco FXOS and NX-OS Lightweight Directory Access Protocol Denial of Service VulnerabilitiesEPSS 2.5%CVE-2018-15450MEDIUMCisco Prime Collaboration Assurance File Overwrite VulnerabilityEPSS 2.5%CVE-2021-36014LOWAdobe Media Encoder MP4 File Parsing Uninitialized Variable Information Disclosure VulnerabilityEPSS 2.5%CVE-2017-3852—A vulnerability in the Cisco application-hosting framework (CAF) component of the Cisco IOx application environment could allow an authenticEPSS 2.5%CVE-2023-27043MEDIUMThe email module of Python through 3.11.3 incorrectly parses e-mail addresses that contain a special character. The wrong portion of an RFC2EPSS 2.5%CVE-2018-14635MEDIUMWhen using the Linux bridge ml2 driver, non-privileged tenants are able to create and attach ports without specifying an IP address, bypassiEPSS 2.5%CVE-2021-41105HIGHFreeSWITCH susceptible to Denial of Service via invalid SRTP packetsEPSS 2.5%