2014-03-11 Instructure Advisory IAC56688 - Arbitrary Enrollment Deletion

759

SECURITY UPDATE

Release Date:	2014-03-11 (Last update can be found below the document title)
Description:	Arbitrary Enrollment Deletion
Criticality Level:	Moderately Critical ( Less Critical < Critical < Moderately Critical < Highly Critical )
Impact:	Restricted Privilege Escalation Manipulation of Sensitive Data
Systems Affected:	Canvas LMS
Solution Status:	Patched
Discovered By:	Shea Silverman and Brandon Stull
Relevant Changesets:	https://github.com/instructure/canvas-lms/commit/a1b5d8ab1298d8aa03f8312cbb50d24a6a66dd6e

Summary:

A bug in permissions checking could allow a malicious user to mark enrollments as deleted in a course that they wouldn't normally have access to do so in. No data would be permanently lost, as the enrollment was only soft deleted and could be restored.

Status:

Fixed in Canvas Cloud. Users of Canvas CV are encouraged to either update to the most recent stable code or apply the patch manually.

About

Bio

Jordan has had various roles in the ed tech software (SAAS) industry for the past 9 years. (almost 5 years with Instructure). In his previous company he was a Client Services Manager for two years (responsible for account management, implementation, project management, and training, for each of his customers). After a year and a half he was commissioned to build a training department, all policies and procedures, and deliver training for all customers. Over the past eight years he has been in charge of conceiving, producing and deploying eLearning initiatives and strategies. He has trained over 3,000 adult learners with a wide range of technical aptitude, including K-12 Teachers, Principals, Administrators, Superintendents, Higher Ed Professors, Doctors, CTO’s, and Corporate Business Professionals and Executives. Jordan is an instructional designer and Community Manager for Instructure with a focus on connecting Canvas users with tools and resources that will help them get excited about and become proficient in utilizing the Canvas Learning Platform.