2014-06-27 Instructure Advisory IAC00722 - SAML Ruby gem vulnerability

1107

SECURITY UPDATE

Release Date:	2014-06-27 (Last update can be found below the document title)
Description:	Vulnerability in Ruby's implementation of SAML
Criticality Level:	Moderately Critical ( Less Critical < Critical < Moderately Critical < Highly Critical )
Impact:	Possible information leakage and/or unauthorized access
Systems Affected:	CanvasLMS
Solution Status:	Patched
Discovered By:	Vladislav Mladenov, Christian Mainka, Florian Feldmann and Julian Krautwald Horst Görtz Institute for IT-Security,http://www.nds.rub.de/chair/news/RelevantChangesetshttps://github.com/instructure/canvas-lms/commit/...
Relevant Changesets:	https://github.com/instructure/canvas-lms/commit/034cae39cc84ec924b4322cfb5fd7ea0fa89c56b

Summary:

A vulnerability exists within version 0.1.28 of the ruby-saml-mod Ruby gem. This vulnerability could potentially allow for information leakage if the correct set of circumstances were present. This vulnerability is fixed in version 0.1.29 of the Ruby gem.

Status:

Fixed in Canvas Cloud as of 6/27/2014. 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.