You could install and use the
Upload Block Settings plugin to add the course_summary block to every course. You would need to first get a list of the "course shortname" field for all courses on your site. You could use the
Configurable Reports block plugin to write an
SQL script to do this, e.g.
SELECT
CONCAT('add,', '') AS '#operation',
c.shortname AS 'shortname',
CONCAT('course_summary', '') AS "block",
CONCAT('side-pre', '') AS "region",
CONCAT('0', '') AS "weight"
FROM
{course} AS c
Once you save the list as a CSV file, go to Site administration > Courses > Upload block settings to upload the file and add the block to every course.