This is done with the intention of pinpointing and attacking a vulnerable target. Hackers are able to perform port scans in order to identify open ports and the services present and running within the network’s hosts. All the attacker needs is the sender’s IP address and the correct sequence number, and this attack succeeds. The attacker achieves this by listening to the communication between the sender and receiver. The target host has no way of knowing that these counterfeit packets are from a malicious host. If hackers are able to achieve this, they can counterfeit packets heading to the target host on the network.

This attack attempts to correctly guess the sequence number used to identify packets in a TCP connection. Hackers can then impersonate another host’s IP address within the network and send packets appearing to originate from this host.

This is true for both the source and destination of the traffic. Whoever has access to the IP header can act as a routing device and determine where the packet goes. Hackers have always been able to manipulate the direction that an IP packet takes based on the implementation of the IP header. Hackers are able to attack some flaws that exist within the TCP/IP protocol suite. What are some essential TCP/IP hacking techniques? With TCP/IP, data encapsulation is achieved in different headers across different transportation layers of the protocol stack.ĭespite attempts to make TCP as secure as possible, there still are some attacks that abuse it. It is possible to develop each of these layers without affecting adjacent ones. The TCP/IP stack is divided into several layers, each of which is important for particular aspects of communication. TCP/IP is currently the most common standard for communicating devices within computer networks. TCP/IP is actually the most widely-used protocol today.

Tools for hackers