Falhas do tipo CWE-345

557 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-2026-45337HIGHBetter Auth: Device authorization approve and deny accept any authenticated session while the user code is pendingEPSS 0.2%CVE-2024-47867LOWLack of integrity check on the downloaded FRP client in GradioEPSS 0.2%CVE-2026-50575HIGHBetterDesk has a replay behavior vulnerability when devices are deletedEPSS 0.2%CVE-2026-35039CRITICALfast-jwt Affected by Cache Confusion via cacheKeyBuilder Collisions Can Return Claims From a Different Token (Identity/Authorization Mixup)EPSS 0.2%CVE-2024-40644MEDIUMgitoxide's gix-path can use a fake program files locationEPSS 0.2%CVE-2025-1108HIGHInsufficient data authenticity vulnerability in JantoEPSS 0.2%CVE-2023-43800HIGHInsufficient Verification of Data Authenticity in Arduino Create AgentEPSS 0.2%CVE-2023-28457HIGHAn issue was discovered in Technitium through 11.0.3. It enables attackers to conduct a DNS cache poisoning attack and inject fake responsesEPSS 0.2%CVE-2026-48781CRITICALPostiz has cross-tenant SUPERADMIN takeover via Skool-provider JWT forgeryEPSS 0.2%CVE-2026-54581HIGHmport bootstrap index fetch can continue after hash verification failureEPSS 0.2%CVE-2026-44434MEDIUMQuicly is vulnerable to stateless reset injectionEPSS 0.2%CVE-2019-10157MEDIUMIt was found that Keycloak's Node.js adapter before version 4.8.3 did not properly verify the web token received from the server in its backEPSS 0.2%CVE-2019-1880MEDIUMCisco Unified Computing System BIOS Signature Bypass VulnerabilityEPSS 0.2%CVE-2026-54239HIGHFaustWP — Authentication Bypass via Initialization Vector Modification in Token EnvelopeEPSS 0.2%CVE-2026-55430MEDIUMCoder's subdomain workspace app routing trusts unauthenticated X-Forwarded-Host header, enabling cross-app data accessEPSS 0.2%CVE-2026-54763HIGHTraefik: headerField underscore-variant identity spoofing in BasicAuth / DigestAuth / ForwardAuthEPSS 0.2%CVE-2026-25474HIGHOpenClaw has a Telegram webhook request forgery (missing `channels.telegram.webhookSecret`) → auth bypassEPSS 0.2%CVE-2026-18248CRITICAL@fastify/aws-lambda vulnerable to Lambda event spoofing via client-controlled x-apigateway-event headerEPSS 0.2%CVE-2023-44402MEDIUMASAR Integrity bypass via filetype confusion in electronEPSS 0.2%CVE-2026-30920HIGHOneUptime has broken access control in GitHub App installation flow that allows unauthorized project bindingEPSS 0.2%