Fallos del tipo CWE-841

87 resultados

Falha na Imposição de Fluxo de Trabalho Comportamental

É quando a aplicação não valida ou não obriga a sequência correta de operações que deveriam ocorrer em uma ordem específica. Um atacante consegue pular etapas, executar ações fora de ordem ou acessar funcionalidades que só deveriam estar disponíveis após certas condições serem atendidas, contornando a lógica de negócio esperada.

Ejemplo

Um sistema de checkout que deveria forçar: login → endereço → pagamento → confirmação. Se o desenvolvedor não validar o estado antes de cada etapa, um atacante pode pular direto para 'confirmação' sem pagar, ou acessar a página de pagamento sem ter preenchido endereço, comprometendo a integridade da transação.

Cómo mitigar

Implemente validação rigorosa de estado antes de cada operação sensível (verificar session, permissões, etapas anteriores completadas). Use máquinas de estado explícitas no backend e nunca confie em controles apenas no frontend; sempre reinforce no servidor qual é a próxima ação permitida.

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