Napoli are now equal on points with Lazio who rallied past Sassuolo, to stretch their winning streak to four games.
Juventus won the annual trophy, played between the league champions and Italian Cup holders, for the ninth time, having finished runners-up last year to Lazio.
Italian Super Cup: Clash of moods as Andrea Pirlo seeks first Juventus trophy against Gennaro Gattuso's Napoli
It will be the fourth Super Cup meeting between Juventus and Napoli. The southerners won in 1990 and 2014 and lost in 2012.
Captain Lorenzo Insigne struck late to rescue a point against their rock bottom rivals as Napoli dropped from third to fifth in Serie A, nine points behind leaders AC Milan.
Maradona spent seven glorious years at Napoli between 1984 and 1991, during which he also lifted the 1989 UEFA Cup, Napoli's only European title.
Champions Juventus were trailing 2-1 and a man down after an hour. But a towering Ronaldo header grabbed the equaliser in the 69th minute to avoid handing new coach Andrea Pirlo a first defeat.
Gattuso, coaching his second Serie A club, is generally seen as a motivator rather than a tactician, mainly due to the fearsome reputation he built up as a player
Serie A: Gennaro Gattuso's Napoli continue good run after restart with win over Hellas Verona; Parma thump Genoa
Napoli have now moved within three points of fifth-place Roma, which plays Sampdoria on Wednesday.
Coppa Italia Final, Juventus vs Napoli: Rusty Cristiano Ronaldo looks to improve as Turin club aims to continue dominance
Ronaldo appears to struggle with a positional switch from his usual spot on the left wing to center forward but would aim for a match-winning performance in the final
'Everything has been strange': Napoli manager Gennaro Gattuso struggles with new coronavirus regulations
Napoli coach Gennaro Gattuso conceded that playing amid coronavirus regulations was neither easy nor nice after his team held Inter Milan 1-1 on Saturday to reach the Coppa Italia final in their first match since a three-month stoppage.
Coppa Italia: Dries Mertens sets goal-scoring record as Napoli edge past Inter Milan on aggregate to reach final
Dries Mertens set a club record by scoring the decisive goal as Napoli advanced to the Italian Cup final after drawing with Inter Milan 1-1 on Saturday.
Champions League: Gennaro Gattuso says Napoli will buy 'helmets and armour' for Camp Nou fixture against Barcelona
Napoli coach Gennaro Gattuso was in typically combative mood after his side were held 1-1 at home by Barcelona in the Champions League, saying they would use “helmets and armour” to defend themselves in the return.
Champions League: Antoine Griezmann scores second-half equaliser as Barcelona draw 1-1 against Napoli
Antoine Griezmann’s second-half equaliser handed Barcelona a vital goal and earned them a 1-1 draw against Napoli in their Champions League last-16 first leg meeting.
Serie A: Dries Mertens, Diego Demme score late goals as in-form Napoli beat Sampdoria to move into 10th place
Napoli came into the match with momentum after a week which saw them beat Serie A leaders Juventus in the league and reach the Italian Cup semi-finals
Napoli alleviated their crisis when an early solo goal by Lorenzo Insigne gave them a 1-0 win over holders Lazio in their Coppa Italia quarter-final on Tuesday, which also featured a bizarre penalty miss by Ciro Immobile for the losers.
Serie A: Napoli concede late goal to lose 2-1 to Parma; Brescia notch up second straight win, beat Lecce 3-0 at home
Napoli hasn't won in Serie A since beating Hellas Verona 2-0 on 19 October
At Napoli, Gennaro Gattuso replaces his former coach, as he spent eight of his 13 years as a player for AC Milan under Carlo Ancelotti.
Champions League: Napoli sack coach Carlo Ancelotti three hours after win over Genk secured last 16 berth
Napoli sacked Carlo Ancelotti, one of Europe’s most successful coaches, on Tuesday, three hours after the Serie A club beat Genk 4-0 to qualify for the Champions League round of 16
Eight-time Serie A champions Juventus eager to shake things up with unconventional Maurizio Sarri for coach
Maurizio Sarri did a good job while coaching the Serie A side Napoli as they played the most attractive football and pushed Juventus all the way