Jeff Longland

Relax, don't worry – have a home brew!

Blackboard DevCon 2011 – Blackboard Learn Security Reference Architecture

with 2 comments

  • Slide deck has an interesting slide on threat categories and corresponding controls
  • Recommend SSL system-wide  with 2048-bit key.
  • Secure performance – SSL on the load balancer rather than the server (off-loading to be supported soon)
  • Adopt a single sign-on provider (SSO) to enforce strong passwords, password resets, throttling/locking
  • Session hijacking risk in Content Management – disable usage of persistent cookies (users will have to authenticate multiple times)
  • bb-tasks.xml can be used to tweak session invalidation
  • Look at Session Fingerprinting to prevent session hijacking.
  • Consider whether Guest access is needed.  Four places to toggle:  Gateway Options, Course Tools, Default Course Settings, Default Organization Settings
  • Enable Globsl Cross-site Scripting Filter (on by default at strictest setting).  Also enable for file uploads (bbconfig.fileupload.enable.xss=true)  Article in WikiKB with more info.
  • Evaluate which system and course/organization roles require ability to enter dynamic content.
  • Enable Grade History.  Do not allow instructor to clear the history.
  • Monitor for changes to system configuration – properties files in config folder  and system registry in database table
  • Monitor privileged accounts for access from unexpected IPs / user agents in BBLEARN.sessions table
  • If CVSSv2 score is > 7, Blackboard will usually release a patch (unless it’s something widespread and better handled by a service pack)
  • Contact if you’d like to participate in a security community
  • Real-time anti-virus scanning is on the roadmap.

Written by jlongland

July 12, 2011 at 10:13 am

2 Responses

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  1. Very useful info. Thanks for summarizing that session. Do you know where one can get the session notes (ppt)?

    Thank you.

    David Lyon

    September 13, 2011 at 1:50 pm

  2. Sorry, I’m really not too sure. There are usually slides on, but I don’t see any for this particular session.


    October 20, 2011 at 9:18 pm

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