Local User Account
If we have root privilege, we can create a user and add him to a root.
Exploitation
We are going to create a user and add him to a root group.

Now we will have a root privilege whenever we login to backdoor account
If we have root privilege, we can create a user and add him to a root.
We are going to create a user and add him to a root group.

Now we will have a root privilege whenever we login to backdoor account