SSO Wars - The Token Menace

SSO Wars - The Token Menace

BSidesLV via YouTube Direct link

Intro

1 of 20

1 of 20

Intro

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SSO Wars - The Token Menace

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  1. 1 Intro
  2. 2 Agenda
  3. 3 Delegated Authentication
  4. 4 JWT token
  5. 5 Similar code for SAML
  6. 6 Potential Attack Vectors (2/2)
  7. 7 Simplified SAML Token
  8. 8 SAML Signature Verification in .NET
  9. 9 A tale of two resolvers
  10. 10 Possible scenarios for different key resolution
  11. 11 Examples of affected frameworks
  12. 12 Windows Communication Foundation (WCF)
  13. 13 Key & Token Resolution
  14. 14 Token resolution - Breadth First
  15. 15 Dupe Key Confusion
  16. 16 Key and Token resolutions
  17. 17 Attack limitations
  18. 18 SharePoint Authentication Flow
  19. 19 SharePoint Attack Flow
  20. 20 Conclusions

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