Yes Vinegar is good at killing mold and even pink mold.
To kill off the pink mold with vinegar pour some undiluted white distilled vinegar into a spray bottle and spray the pink mold with it and let it sit for an hour.
Then use a scrub brush or cloth to clean the mold off the surface and wipe the area down with some plain water.
You can also clean the pink mold with bleach and the bleach will also kill the pink mold off the surface.
Another way of getting rid of pink mold is to mix some baking soda and water to make a paste and then apply the paste to the surface where the pink mold is and then scrub the pink mold with the baking soda and water.
You can also add some dish soap with the baking soda and water paste to help it clean much better.