Juventus drew for the fifth time in nine Serie A games this season as they were held by promoted minnows Benevento.
Andrea Pirlo's Juve - who rested Cristiano Ronaldo - led through Alvaro Morata's low drilled effort.
Gaetano Letizia levelled on the stroke of half-time with a volley from Arthur's half-clearance.
Paulo Dybala missed a late chance to win the game and Juve had Morata sent off for dissent at the final whistle.
Juventus - who have won nine consecutive titles - sit in fifth place after four wins and five draws so far.
Benevento are managed by former Juventus striker Filippo Inzaghi.