SharePoint Authentication And Authorization SPTechCon San Francisco
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This document discusses authentication and authorization in SharePoint. It begins with an overview of security concepts like authentication, which verifies a claim of identity, and authorization, which verifies permissions. It then covers authentication options in SharePoint like Windows authentication and claims-based authentication using an identity provider. The document also discusses authorization and role providers, custom identity providers, and Azure Access Control Service. It emphasizes configuring authorization correctly after authentication and expecting security issues to arise.
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SharePoint Authentication And Authorization SPTechCon San Francisco
- 1. SharePoint Authentication and Authorization Liam Cleary Solution Architect | SharePoint MVP
- 2. About Me • Solution Architect @ SusQtech (Winchester, VA) • SharePoint MVP since 2007 • Working with SharePoint since 2002 • Worked on all kinds of projects • Internet • Intranet • Extranet • Anything SharePoint Really • Involved in Architecture, Deployment, Customization and Development of SharePoint
- 3. Agenda • Security in General • Security with SharePoint • Authentication • Authorization • Authentication vs. Authorization • Claims Authentication / Authorization • Options Available • Membership & Role Providers • Identity Provider • Cloud Based Services • Art of Authorization • Things to Remember
- 4. Security in General Dictionary Definition: • Freedom from danger, risk, etc.; safety. • Freedom from care, anxiety, or doubt; well-founded confidence. • Something that secures or makes safe; protection; defense. • Freedom from financial cares or from want: The insurance policy gave the family security. • Precautions taken to guard against crime, attack, sabotage, espionage
- 6. Security with SharePoint • Isn't this an oxymoron? Just kidding!!
- 7. Security with SharePoint How does security come into play with SharePoint? • Same questions as the previous security • How, Who, When and often Why • Content specific security • Role based as well is individual security • Collaboration security • Cross Team • Cross Organizational • Cross Company • Specific permission sets for types of access and functionality
- 8. Authentication – What is? Dictionary Definition: • To establish as genuine. • To establish the authorship or origin of conclusively or unquestionably, chiefly by the techniques of scholarship: to authenticate a painting. • To make authoritative or valid.
- 9. Authentication – Types of? • Windows • NTLM • Kerberos • Basic • Anonymous • Digest • Forms-based Authentication • Lightweight Directory Access Protocol (LDAP) • Microsoft SQL Server • ASP.NET Membership and Role Providers • SAML Token-based Authentication • Active Directory Federated Services • 3rd Party Identity Provider • Lightweight Directory Access Protocol (LDAP)
- 10. Authorization – What is? Dictionary Definition: • The act of authorizing. • Permission or power granted by an authority; sanction. • To give authority or official power to; • To give authority for; formally sanction (an act or proceeding): • To establish by authority or usage:
- 11. Authentication vs. Authorization • Misunderstood Terminology • Users, IT and Developers • Authentication = Verification of Claim (I am Liam) • Authorization = Verification of Permission (Liam has access to) • Authentication Precedes Authorization • Correct ID shown to Bank Teller • You are Asking to be Authenticated on the Account • Once accepted you become Authorized on the Account • Exception to the rule • Anonymous Access can leave comments on Blog site • Anonymous users are already Authorized but not Authenticated • Too often we focus on Authentication and not Authorization • We expect our users, clients etc. to just inherently know what they are to do • We often forget that Authentication can be broken, but Authorization is slightly more complicated
- 12. Authentication – Claims SharePoint 2010 Introduced Claims Authentication
- 13. Authentication – Claims Why introduce Claims Authentication? • Wide Support • Standards Based • WS-Federation 1.1 • WS-Trust 1.4 • SAML Token 1.1 AuthN • Single Sign On • Federation • Already many providers, Live, Google, Facebook etc • Microsoft standard approach • Fed up custom coding everything, every time • Gets round (some) Office Integration problems • Easy to configure with little effort • Multiple Web Config changes, Web Application Changes and then of course the actual configuration of your identity provider
- 14. Authentication – Claim Terminology • Identity • Info about a Person or Object (AD, Google, Windows Live, Facebook etc.) • Claim • Attributes of the Identity (User ID, Email, Age etc.) • Token • Binary Representation of Identity • Set of Claims and the Signature • Relying Party (aka RP) • Users Token • Secure Token Service (STS) • Issuer of Tokens for Users
- 15. Authentication – Sign In Process Identity Provider SharePoint 2010 Security Token Service aka RP aka IP-STS 1. Resource Requested 2. AuthN Request / Redirect 3. AuthN Request 4. Security Token 5. Security Token Request 6. Service Token 7. Resource Request w/Service Token 8. Resource Sent
- 16. Sign-In Process with Identity Provider DEMO
- 17. Authentication – Membership & Role Providers • Classic .NET approach • Support Local Authentication Store • Support Remote Authentication Stores • Web Services, Remote Database Calls • No inherent Single Sign On • Custom Code to Achieve this, namely cookie based • Full support for base .NET Providers • Membership Provider – User Accounts and Authentication • Role Provider – Equivalent of Groups, Authorization Element • Specific Configuration needed for each Web Application • Central Administration • Secure Token Service • Web Application • Extensive “web.config” entries needed • Custom Components in SharePoint will needed • Welcome Control, Login Control etc.
- 18. Authentication – Custom Identity Provider • No need for Membership and Role Provider • Can still be used – NOTE: Membership User Approach • Single Sign Built in – Web Application needs to be set to require Authentication not Anonymous • Central Managed and Entry point for all Authentication • Support Local Authentication Store • Support Remote Authentication Stores • Web Services, Remote Database Calls • Utilizes Windows Identity Framework • Can use .NET 3.5 / 4.0 • PowerShell configuration to implement • Requires Trusted Certificate for Communication • Custom Components in SharePoint will needed • Welcome Control, Login Control etc.
- 19. Authentication - Azure Control Service • Microsoft ADFS Type Cloud Based Service • Central Point for offloading Authentication • Supports SAML 1.1 / SAML 2.0 • Support • Facebook • Google • Windows Live ID • Yahoo • Custom IDP • Integrate with Custom Identity Provider • Open ID type authentication • Support for 3rd Party Integration • Claim Mapping through configuration
- 21. Authentication – Identity Provider • Deployment into separate Web Site • https://sts.domain.com • Use SSL for all communication • Ensure SharePoint 2010 trusts the certificate being used by the Provider • Methods of override: • Authenticate User • GetClaimTypeForRole • GetOutputClaimsIdentity • Create User Class – methods to get values from backend into claims • Create Claim Types class • Create custom login methods and validation
- 22. Authorization • SharePoint does this after Authentication • Is user member of group? • Is user account added to ACL of object? • Does user have required attribute? • SharePoint only understands what it is told • e.g. Just because user logged in at? Does not authorize • Best Approach to Authorize • Active Directory Groups • Roles from Membership and Role Provider • Claims associated to user • Don’t just add users to groups or individually – can cause issues • SharePoint default “DENY”
- 23. SharePoint Authorization Web Application / Site Collection Anonymous Secured Site / Site Collection / Content Authentication Content Repository Is In Site Group? Content Does user have claim attribute?
- 25. Security – Real World • Expect the unexpected • People will find a way to circumvent your security • Give users minimal permission • Starting with Less is good • Add functionality through permission as needed • Be prepared to secure at all levels • Web Application • Site Collection • Site • List or Library • Item • Use roles from Provider • Active Directory Groups • Membership and Role Provider Roles • Claims
- 26. Thank You • Personal Email: liamcleary@msn.com • Work: http://www.susqtech.com • Twitter: @helloitsliam • Blog: www.helloitsliam.com