The README.TXT instructs to add this permission:
allow CKFinder file uploads. Furthermore it mentions:
Note: if you do not see such permission, it means that CKEditor did not find CKFinder and you have probably uploaded CKFinder into wrong directory.
Looking at the implementation of
hook_permission() we find that the correct permission name is:
CKFinder access. This above mentioned paragraph might confuse users as they may be looking for a permission which does not exist.