Zaman shared in a century stand with Shoaib Malik as Pakistan recovered from an early wobble in their pursuit of Australia's 183 for 8, and Malik then showed all the experience of an 18-year global career to see his team home with an unbeaten 43.
With Finch nicking a flawless delivery from left-arm seamer Shaheen Afridi to wicketkeeper and captain Safraz Ahmed in the fifth over for 16 runs, Pakistan started believing that the day certainly belonged to them.
Pakistan's victory also served the objective of preventing Australia from taking their place at the top of the ICC's T20 worldwide rankings.
Interestingly, earlier in the tournament, Finch had also reached a career-high 900 points, and the new number two on the table, Lokesh Rahul, did the same in the first match of three-T20I series in England, getting to 854 points.
Pakistan will now go into the final with plenty of confidence, while the Australians must face Zimbabwe before reconsidering their approach to Fakhar, Afridi and the rest of Sarfraz's team.
Pompeo points to Vietnam as example of improved relations
Crazy Mika", the latter of whom he claimed "was bleeding badly from a face-lift" while visiting Mar-a-Lago around New Year's Eve. The trip was Pompeo's third to Pyongyang since April and his first since the summit.
In the process of hammering the Aussie bowlers, the opener became the highest run scorer in T20Is during 2018 with 516 runs surpassing Australian Aaron Finch with 464 runs.
Pakistani cricket journalist Mazher Arshad wrote on Twitter: "It seems Australia's promise to play respectful cricket was only a lip-service". In the Champions Trophy, in the final, he got that hundred. "He's also been consistent in this format for a long time", Finch said ahead of the Sunday's final. "We let them back into the game with bat and ball today".
Pakistan didn't help themselves with some sloppy fielding, which included dropping Finch on the first ball he faced.
"Hopefully I can get a few (runs) in the final".
Just two points separate second-placed India and Australia, who are in No.3 but the gap is even closer from No.4 to No.7.