The Australian will start Sunday's race on pole position, while Vettel will commence behind him and could wrap up the world championship title if he wins and Ferrari's Fernando Alonso finishes below eighth.
"We'll have a standard race," BBC Sport quotes Webber as saying. "It's everyone for themselves to get the maximum result they can.
"That means me winning and the rest is whatever. If Seb can get more points than Fernando, it's good for him and the team."
Alonso will start Sunday's race in eighth place.