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Windows Security

Windows Security. Myles Maxfield John Smith Rick Born. Old School. IBM/MS DOS. 1981 – purchased by Micro-soft Single user, Limited network support No user security No File security. Windows 3.1. Added Protected_Mode Task Switching only

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Windows Security

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  1. Windows Security Myles Maxfield John Smith Rick Born

  2. Old School

  3. IBM/MS DOS • 1981 – purchased by Micro-soft • Single user, • Limited network support • No user security • No File security

  4. Windows 3.1 • Added Protected_Mode • Task Switching only • Added some virtual capabilities of the 386 processoe if run in 386 Enhanced mode

  5. Windows 95 • Built in TCP/IP stack • 32bit operating system • Appears to be multiuser

  6. Windows 98/ME • Built in browser (IE)

  7. References • http://www.nukesoft.co.uk/msdos/dosversions.shtml • http://www.lbl.gov/ITSD/Security/systems/win-checklist.html

  8. Windows NT - 2000

  9. What is Windows NT? • Windows meant for business and server usage • Multiprocessing and multiuser support was important • The basis for modern Windows releases

  10. Security Model • Security Descriptors (SD) • Access Control Lists (ACL)

  11. Security Descriptors • Every single anything on NT has one. • It IDs the owner of the thing and has an ACL attached

  12. Access Control Lists • A list of all of the user and groups and their permissions on the object • Contain Access Control Entries, which specify access for individuals • Two Types • Discretionary: Controlled by the owner • System: Controlled by system administrator

  13. Access Token • Used to id a user and their groups for use with SDs.

  14. Pre-2000 are Broken! • A flaw in early versions of NT are vulnerable to DoS attacks through RCP. • Not patched in pre-2000! • The underlying system would need to be changed too much

  15. References • http://www.microsoft.com/technet/security/Bulletin/MS03-010.mspx • http://msdn.microsoft.com/en-us/library/ms995339.aspx • http://msdn.microsoft.com/en-us/library/ms995341.aspx

  16. Windows XPWindows Vista Securitah!

  17. Windows XP

  18. Most Popular • 60-90 Percent market share • Most targeted • Windows Update lag

  19. Service Packs • Service Pack 1 • Patches and hotfixes • Service Pack 2 • Data Execution Prevention • Security Center • Service Pack 3 • .NET patches

  20. Security Center (SP2)

  21. Security Center • Firewall • Automatic Updates • Antivirus • Note: Unix

  22. User Access • Default operating as Administrator

  23. Vista

  24. Similar to XP • Security Center* • Data Execution Prevention

  25. Security Center • Vanilla Installation • Firewall • Automatic Updates • Malware Protection • Internet Security Settings

  26. User Access Control • Problem with XP • Authentication • User and Administrator at the same time • Annoying

  27. Windows Defender

  28. Windows Defender • Problem with XP • Malware security

  29. Address Space Layout Randomization • OpenBSD

  30. Digital Rights Management • Non effective

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