Full access to a specific S3 bucket - replace "bucket-name" with name of the bucket

S3FullAccess.json

{
   "Statement":[
      {
         "Effect":"Allow",
         "Action":[
            "s3:ListAllMyBuckets"
         ],
         "Resource":"arn:aws:s3:::*"
      },
      {
         "Effect":"Allow",
         "Action":[
            "s3:*"
         ],
         "Resource": [
            "arn:aws:s3:::bucket-name",
            "arn:aws:s3:::bucket-name/*"
         ]
      }
   ]
}