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Securing the SharePoint Platform


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Presentation titled "Securing the SharePoint Platform" presented by Bert Johnson at SharePoint Saturday Chicago

Presentation titled "Securing the SharePoint Platform" presented by Bert Johnson at SharePoint Saturday Chicago

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  • [1 minute]
  • [1 minute]
  • [1 minute]
  • [2 minutes]“Application platform” includes custom development, Project Server, SAP Duet, FAST Search, TFS.
  • [1 minute]
  • [2 minutes]
  • [2 minutes]
  • [2 minutes]On one of my first SharePoint assessments, a major firm I was working with had no idea how much data or what kinds of data they had, how many users they had, or how permissions were configured. They estimated a couple thousand people had access to SharePoint. It turned out over 22,000 did.
  • [3 minutes]The farm configuration wizard creates some security gaps by default.
  • [5 minutes]Unless the site feature is activated, standard SharePoint endpoints are available, making data discovery easy./Forms/AllItems.aspx/_layouts/viewlsts.aspx/_vti_bin/sites.asmx
  • [2 minutes]SharePoint people search results have no form of security trimming. If a user can see any people results, they can see them all.
  • [2 minutes]Too often, SharePoint site owners rely on obfuscation or audience targeting to try and secure content.
  • [3 minutes]Any party who can manipulate SharePoint’s HTML directly or impersonate third party Javascript can compromise the site.
  • [2 minutes]The InfoPath forms service web service proxy caches credentials, allowing for subsequent users to impersonate preceding users if accessed directly.
  • [3 minutes]SharePoint designer backups are exported to the root of your SharePoint site as unencrypted CMP packages.
  • [3 minutes]SharePoint 2010 added a new header called X-HealthScore for preventing Office client abuse. In public sites, it advertises server load. All SharePoint versions reveal their version number in a header by default.
  • [4 minutes]Malicious Javascript can be used to manipulate data when another user runs it.
  • [2 minutes]MOSS 2007 below August 2009 has XSS bug in the help pages allowing arbitrary code injection.
  • [1 minute]
  • Transcript

    • 1. Bert Johnson
      SharePoint Architect and MCM - PointBridge
      Securing the SharePoint Platform
    • 2. Bert Johnson
      SharePoint Architect with PointBridge Solutions
      Microsoft Certified Master – SharePoint Server 2010
      Twitter: @SPBert Event Hashtag: #SPSChicago
    • 3. About PointBridge
      By The Numbers:
      Founded in 2004
      250+ SharePoint projects
      350,000+ hours of SharePoint experience
      30,000+ monthly blog hits
      2010 Microsoft Midwest District Award for Best Customer Experience
      2009 Microsoft Central US Partner of the Year
      2009 SharePoint Conference Award: Multi-Solution Capability
      2008 Global Partner of the Year finalist: Citizenship
      2007 Microsoft US Partner of the Year: SharePoint
      One of 35 Microsoft National Systems Integrators
      One of 15 members of Microsoft Partner Advisory Council for SharePoint
    • 4. Agenda
      The Importance of SharePoint Security
      Facets of SharePoint Security
      Q & A
    • 5. The Importance of SharePoint Security
    • 6. What is SharePoint?
      SharePoint is:
      “A site-provisioning engine”
      No really, SharePoint is:
      A website
      A series of databases
      An application platform
      SharePoint touches:
      Your network
      Your Active Directory
      Your LOB Systems
      SharePoint is a platform with a large attack surface
    • 7. SharePoint is Everywhere
      Over 20,000 new SharePoint seats have been added every day for 5 years
      Over 1,500 high profile websites on SharePoint
      SharePoint is becoming increasingly “business critical”
      SharePoint is commonly used for
      Internet Sites
      Application platforms
    • 8. Types of Security Threats
      Threats we’re going to explore today:
      Data disclosure / theft
      Data loss
      System downtime
      Types of attacks:
      Cross-site scripting (XSS)
      Cross-site request forgery (CSRF)
      Privilege escalation
      “Man in the middle” / replay attacks
      SQL injection
      If it’s a threat to other websites or databases, it’s a threat to SharePoint
    • 9. Software Security in the News
      March 17 – RSA SecureID Compromised
      March 24 - Comodo Security Breach
      April 4 - Epsilon Data Leak
      April 12 - Largest Microsoft Patch Tuesday
      April 20 – PlayStation Network Hack
      May 30 – LulzSec (PBS, Sony, NHS, etc.)
      June 9 – Citigroup Accounts Accessed
      * Concise history of recent Sony hacks
    • 10. Facets of SharePoint Security
    • 11. Example:They keep piling up!
    • 12. Planning for Security
    • 13. Planning for Security
      Plan personas and define permission matrices
      Understand content and security contexts
      Determine authentication, SSO, and federation goals
      Use the SharePoint 2010 upgrade as an opportunity to apply governance
      Don’t expect the default settings to protect you
    • 14. Example:How’d you build that?
    • 15. Anonymous Access
      Carefully decide if SharePoint is the right platform for anonymous access
      Especially consider implications for public blogs and wikis
      Always use the site lockdown feature
      Further restrict pages using web.config or UAG
      Add SharePoint to your website security testing
      Don’t lock out the /_layouts path altogether
    • 16. Example:I don’t think we’ve met…
    • 17. Authentication and Directory Security
      Synchronize only the AD users relevant for social features
      Don’t bring confidential information into user profiles
      Understand the impacts of third-party federation
      Track and block rogue SharePoint installations with “Service Connection Points”
      Develop a password change / managed account strategy
    • 18. Example:Private audience?
    • 19. Content Security
      Audiences are not security
      Search content rollups make bypassing audiences simple
      Item-level permissions / broken permission inheritance should be the exception, not the rule
      Avoid using policies to override permissions
      PDFs = Pretty Dangerous Files
      Consider Information Rights Management and auditing
    • 20. Example:The man in the middle…
    • 21. Network Security
      Always use SSL for authenticated access
      Firewall all nonessential public ports
      Host all servers on the same vLAN
      Use IPSec for geo-distributed communication
      Be aware of “loopback check” implications
    • 22. Network Security
    • 23. Example:I’m with him…
    • 24. Application Security
      Never expose SharePoint’s application tier to the internet
      Don’t host Central Administration on a web front-end
      Isolate service accounts and use standard naming conventions
      Use multiple IIS application pools (but not too many)
      Never use CNames
    • 25. Example:Thanks for the backup!
    • 26. Database Security
      Isolate SharePoint databases from other systems
      Minimize the SQL surface area by disabling unneeded features
      Consider SQL 2008 “Transparent Data Encryption”
      Performance impact, backup size impact, and file stream impacts
      Don’t leave SharePoint backups within the content database or on web-front ends
    • 27. Example:Your health is showing.
    • 28. Connected System Security
      Remove the X-HealthScore, MicrosoftSharePointTeamServices, and other identifying headers
      Leverage the Secure Store Service for safely accessing external systems via BCS
      Avoid reliance on Flash content
      Consider ForeFront UAG endpoint security
      Set policies regarding data being stored offline
    • 29. Example:Could you do this for me?
    • 30. Custom Development Security
      Build security testing into the SDLC for all custom and third-party components
      Take advantage of CAS policies and the ULS logs
      Utilize sandbox solutions whenever possible
      Minimize use of RunWithElevatedPrivilege()
      With SharePoint 2010, Javascript is now the biggest threat
    • 31. Example:You don’t want this help…
    • 32. Security Maintenance and Monitoring
      If running WSS/MOSS, patch to October 2010 CU or install MS10-039
      Keep SharePoint, Windows, and SQL patched to latest service packs
      Deploy server-side virus protection
      Use Systems Center Operations Manager with SP health rules to monitor for performance spikes or errors related to attacks
      Build security assessments and spot checks into other SharePoint maintenance plans
      Familiarize self with “Site Permissions > Check Permissions”
    • 33. Resources
    • 34. Resources
      Downloadable book: Security for Office SharePoint Server 2007
      Locking down Office SharePoint Server sites
      Plan for and design security
      Bert Johnson security blogs
    • 35. Q & A
    • 36. Bert Johnson
      SharePoint Architect with PointBridge Solutions
      Microsoft Certified Master – SharePoint Server 2010
      Twitter: @SPBert Event Hashtag: #SPSChicago
    • 37. Housekeeping
      Please remember to submit your session evaluation forms after each session you attend to increase your chances at the raffle
      Follow SharePoint Saturday Chicago on Twitter @spschicago and hashtag #spschicago
    • 38. Thanks to Our Sponsors!