From WoWWiki

Basic Campfire is an ability or sub-skill of the Cooking profession to create a Cooking Fire.

Basic Campfire requires Flint and Tinder and Simple Wood.

Additional notes:

• The maker of the fire gets a spirit Buff when within a certain range of the fire.
• When a party member makes a fire, all party members get the spirit bonus as well.
• Anyone can use a cooking fire to cook over.
• It is possible to raise your cooking skill when you create a campfire.