The Blogs module leverages the standard security used for all documents, as blogs are actually documents in the content tree.
The Blogs module also has the following permissions. These permissions are related to the administration interface in CMS Desk -> Tools -> Blogs:
•Manage comments - allows members of the role to manage blog post comments
•Read - allows members of the role to view blog posts and blog post comments via the administration interface
Detailed information about the Blogs module can be found in Developer's Guide -> Modules -> Blogs.