The Candystripes climbed to second in the table thanks to a late penalty kick from top scorer Rory Patterson
An entertaining opening saw both sides create early chances. Danny Murphy tested Ger Doherty in the first few minutes, while Cork keeper Mark McNulty was forced to halt Mark Griffin's advances. Daryl Horgan had an excellent chance for the hosts on 10 minutes, but saw his strike fizz past the post. Ryan McBride had the best chance of the half for Derry, but couldn't direct his header on target.
Cork started the second half as they ended the second, with Daryl Kavanagh carving out a good chance for Danny Furlong, unfortunately the striker couldn't keep his effort on target. Michael Rafter was Derry's most dangerous player in attack, but some solid Cork defending restricted him to shots from range.
Both sides looked for a winner as the match went on, and Horgan will be disappointed not to have found the target after being allowed space in the area. At the other end, Rory Patterson knocked down for Simon Madden, but once again McNulty wasn't tested.
The game looked to be ending in a stalemate, but right at the end the Candystripes were awarded a penalty for a handball in the area, and top scorer Rory Patterson stepped up to take the spot kick. McNulty saved the initial effort, but could not reach the rebound.
The win is Derry's second of the season and sees them climb to second in the table.