Detection stack
- AIDR
- Alert
- ETL
- Query
Análise
Uma vulnerabilidade crítica de zero clique, rastreada como CVE-2025-48593, foi divulgada no componente central do sistema das versões 13 a 16 do Android. A falha permite que um atacante remoto execute código arbitrário em um dispositivo sem qualquer interação do usuário ou privilégios adicionais, tornando-a excepcionalmente perigosa. O patch que resolve esse problema está incluído na atualização de segurança com o nível de patch 2025-11-01.
Investigação
A causa raiz do CVE-2025-48593 foi identificada como validação de entrada insuficiente no componente do sistema, o que permite que payloads maliciosos criados executem código arbitrário em dispositivos vulneráveis. Como a vulnerabilidade é de zero clique, não é necessária nenhuma ação do usuário — como abrir um link ou instalar um aplicativo — tornando o vetor de exploração muito mais amplo do que ataques interativos típicos. Embora os detalhes técnicos públicos permaneçam limitados (provavelmente devido a práticas de embargo e divulgação responsável), discussões sugerem um cenário de uso após liberação ou corrupção de memória no processamento de pacotes ou serviços a nível de sistema.
Mitigação
Para mitigar o risco representado pelo CVE-2025-48593, os usuários e administradores devem verificar imediatamente se os dispositivos aplicaram o nível de patch de segurança 2025-11-01 ou posterior, via Configurações → Segurança → “Nível de patch de segurança”. Além de aplicar os patches, as organizações devem impor controles mais rígidos de gerenciamento de dispositivos móveis (MDM): desabilitar a instalação de aplicativos de fontes externas, restringir o acesso USB/ADB, impor conformidade de dispositivos para o nível de patch e monitorar comportamento anômalo do sistema, como tráfego de rede inesperado a partir de terminais móveis. Os usuários também devem garantir que proteções internas como o Google Play Protect estejam ativas e evitar conectar-se a redes não confiáveis ou executar aplicativos de fontes não verificadas.
Resposta
Em resposta a esta vulnerabilidade, os fabricantes de dispositivos e OEMs devem acelerar o lançamento do patch 2025-11-01 (ou atualização equivalente do fornecedor) e comunicar claramente aos usuários finais sobre a urgência de instalar a atualização. As organizações devem tratar terminais móveis como alvos de alto valor: revisar planos de resposta a incidentes para cenários de comprometimento móvel, realizar verificações forenses para sinais de execução remota de código e isolar ou aposentar dispositivos que não possam ser corrigidos em tempo hábil. Do lado do usuário, os indivíduos devem instalar atualizações do sistema assim que estiverem disponíveis e evitar usar dispositivos cujo OEM não forneça mais patches de segurança. A falha em fazê-lo deixa o dispositivo vulnerável a comprometimentos remotos e silenciosos.
Fluxo de Ataque
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Notifique-meRegras de Detecção
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Notifique-meInstruções de Payload
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