Falhas do tipo CWE-345

676 resultados

Verificação insuficiente de autenticidade de dados

A aplicação recebe dados de fontes externas (rede, arquivo, entrada do usuário) mas não valida adequadamente se eles realmente vieram de quem diz vir ou se não foram alterados no caminho. Isso permite que um atacante forje, intercepte ou modifique dados sem que o sistema detecte, comprometendo integridade e confiança.

Exemplo

Um serviço REST que confia cegamente em um campo 'user_id' vindo do cliente, sem verificar assinatura ou token, permitindo que alguém mude a URL para acessar dados de outro usuário. Ou um arquivo de configuração lido sem validar sua hash, permitindo execução de código malicioso se o arquivo for corrompido.

Como mitigar

Use mecanismos criptográficos de autenticação (HMAC, assinatura digital, certificados TLS) para garantir a origem e integridade dos dados. No lado do servidor, nunca confie em identificadores ou claims do cliente — valide contra seu próprio estado autorizado (sessão, JWT assinado, etc).

CVE-2025-66255CRITICALUnauthenticated Arbitrary File Upload (upgrade_contents.php)EPSS 0.4%CVE-2025-8980HIGHTenda G1 Firmware Update check_upload_file data authenticityEPSS 0.4%CVE-2023-27982HIGHA CWE-345: Insufficient Verification of Data Authenticity vulnerability exists in the Data Server that could cause manipulation of dashboardEPSS 0.4%CVE-2022-20774MEDIUMCisco IP Phone 6800, 7800, and 8800 Series with Multiplatform Firmware Cross-Site Request Forgery VulnerabilityEPSS 0.4%CVE-2022-23556HIGHCodeIgniter is vulnerable to IP address spoofing when using proxyEPSS 0.4%CVE-2026-2836HIGHCache poisoning via insecure-by-default cache keyEPSS 0.4%CVE-2025-63910HIGHAn authenticated arbitrary file upload vulnerability in Cohesity TranZman Migration Appliance Release 4.0 Build 14614 allows attackers with EPSS 0.4%CVE-2024-25638HIGHDNSJava DNSSEC BypassEPSS 0.4%CVE-2022-41960MEDIUMBigBlueButton contains DoS via failed authToken validationEPSS 0.4%CVE-2026-26007HIGHcryptography Subgroup Attack Due to Missing Subgroup Validation for SECT CurvesEPSS 0.4%CVE-2024-1554CRITICALThe `fetch()` API and navigation incorrectly shared the same cache, as the cache key did not include the optional headers `fetch()` may contEPSS 0.4%CVE-2022-34845MEDIUMA firmware update vulnerability exists in the sysupgrade functionality of Robustel R1510 3.1.16 and 3.3.0. A specially-crafted network packeEPSS 0.4%CVE-2023-37264LOWPipelines do not validate child UIDsEPSS 0.4%CVE-2026-18248CRITICAL@fastify/aws-lambda vulnerable to Lambda event spoofing via client-controlled x-apigateway-event headerEPSS 0.4%CVE-2026-25921CRITICALGogs: Cross-repository LFS object overwrite via missing content hash verificationEPSS 0.4%CVE-2026-47691HIGHNetty has Insufficient Bailiwick Validation for NS RecordsEPSS 0.4%CVE-2026-44725MEDIUMEMQX: Stale plugins allow grants amplify a compromised admin/API key to remote code executionEPSS 0.4%CVE-2024-27305MEDIUMSMTP smuggling in aiosmtpdEPSS 0.4%CVE-2019-3807LOWAn issue has been found in PowerDNS Recursor versions 4.1.x before 4.1.9 where records in the answer section of responses received from authEPSS 0.4%CVE-2022-32252MEDIUMA vulnerability has been identified in SINEMA Remote Connect Server (All versions < V3.1). The application does not perform the integrity chEPSS 0.4%