Former boss Mano Menezes was sacked last week, and the CBF has wasted no time in naming the 64-year-old as his successor.
Former boss Mano Menezes was sacked last week after failing to meet expectations, having been knocked out of the 2011 Copa America by Paraguay on penalties, before losing to Mexico in the 2012 Olympics final.
The former Chelsea boss, who coached his country between 2001 and 2002, was installed as the early favorite to take over alongside Santos' Muricy Ramalho.
During his first reign in charge of his country, Scolari won the 2002 World Cup, beating Germany 3-0 in the final, and is targeting another triumph when Brazil hosts the tournament in 2014.
"We have an obligation to win the World Cup," he told reporters at his unveiling. "We are not the favorites to win it now, but we aim to become favorites as we are starting to see the results of our hard work.
"If a national team that have won five World Cups is organizing the World Cup, you cannot think about just making it to the final or semifinals."
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