Which of the following attacks is OS$-$based?

A

An attacker exploits a vulnerability in how a system handles file permission to gain root access to the system

B

An attacker impersonates a manager at a company in order to convince an employee to give them sensitive information

C

An attacker tricks a user on the internet to perform an action on a website where they are already authenticated

D

An attacker crafts input for a web form that is SQL code designed to change data in the backend database