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Exam 312-50 Topic 6 Question 333 Discussion

Actual exam question for EC-COUNCIL's 312-50 exam
Question #: 333
Topic #: 6
After a client sends a connection request (SYN) packet to the server, the server will respond (SYN-ACK) with a sequence number of its choosing, which then must be acknowledge (ACK) by the client. This sequence number is predictable; the attack connects to a service first with its own IP address, records the sequence number chosen and then opens a second connection from a forget IP address. The attack doesn't see the SYN-ACK (or any other packet) from the server, but can guess the correct responses. If the source IP Address is used for authentication, the attacker can use the one-side communication to break into the server.
What attacks can you successfully launch against a server using the above technique?

Suggested Answer: A Vote an answer

The term Session Hijacking refers to the exploitation of a valid computer session sometimes also called a session key - to gain unauthorised access to information or services in a computer system. In particular, it is used to refer to the theft of a magic cookie used to authenticate a user to a remote server. It has particular relevance to web developers, as the HTTP cookies used to maintain a session on many web sites can be easily stolen by an attacker using an intermediary computer or with access to the saved cookies on the victim's computer.
Topic 11, Hacking Web Servers

by Atwood at May 13, 2024, 09:25 PM

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