I'm using RSA public key private key for sending AES key from each client to server application.
then i'm using this AES key and IV for communicating between client and server.

what should i do for this MITM attack scenario??

client[encrypted text] ---> Server

**the MITM can use this encrypted text again to send it to server**. consider if this encrypted text is an operation on transfering money.

the solutions i have planned for this are these:

1- attach new IV(encrypted) on each sending to server , so the server knows what's the next message iv is

well , i just can think about this only for now