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How to Set Effective Security Policies at Your Organization

How to Set Effective Security Policies at Your Organization. David Strom VAR Business Technology Editor June 20, 2002. My background. Author of “Home Networking Survival Guide” book from Osborne/McGraw Hill Founding Editor-in-Chief, Network Computing

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How to Set Effective Security Policies at Your Organization

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  1. How to Set Effective Security Policies at Your Organization David Strom VAR Business Technology Editor June 20, 2002

  2. My background • Author of “Home Networking Survival Guide” book from Osborne/McGraw Hill • Founding Editor-in-Chief, Network Computing • Tested numerous networking and security products

  3. Things to know before you can set effective policies Problems with existing network and applications infrastructure Issues with products and protocols Ways around the various tools that you are trying to use to lock things down

  4. Who is in charge, anyway? Do you have a chief security officer? Does s/he have any real authority? Does s/he have control over corporate directories, network infrastructure decisions, and internal applications development?

  5. Look at your exposure from within Network admins who have rights to everything Applications that have access to other applications Users who temporarily gain access outside of their normal departments

  6. So let’s look at the following: VPN policies and choices Email policies and issues eCommerce issues Firewalls don’t protect you all the time

  7. Role of integrators with VPNs • Help with their rollout and configuration • Help with remote support and troubleshooting • Recommend equipment and configuration • Include as part of overall telecommuting application

  8. VPN Issue #1: Ease of use • VPNs still vexing • Matched pair problem • Hardware or software choices not always obvious

  9. VPN Issue #2: Cable providers don’t like home networks • Getting static IPs can be a problem • Changing MAC addresses is an issue • Administering and supporting a home network is sometimes beyond their abilities or interest … Yet all cable modems come with Ethernet!

  10. VPN Issue #3: Providers hate VPNs • Well, maybe they are more ignorant than hate them • Some don’t include VPNs in their TOS • Some do everything they can to discourage their use (frequent IP changes, for example)

  11. VPN Issue #4: Remote support • Coordinating a VPN roll out for telecommuters can swamp a small tech support department • Variations in Windows OS, and non-Windows PCs can be difficult! • What if users require more than one tunnel?

  12. State of VPNs • Software now comes included in residential gateways like Sonic and Netgear • Still too hard for the average consumer, and the average business computer user • But wider support is inevitable • Costs too much and requires some careful justification • VPN.net: A new way of establishing VPNs

  13. Email policies How accurate is your employee directory? Do outsiders have access to your email system? And for how long? Do terminated employees have access still? How often do employees copy all by mistake?

  14. Making email secure Use Notes or Groupwise Don’t run Outlook, Outlook Express Use PGP or SMIME products

  15. eCommerce issues • Make sure you protect your enterprise network from intrusion • Limit user access, isolate servers, lock down scripts, harden servers • See www.nwfusion.com/netresources/0202hack1.html

  16. Web/database issues • Understand security weaknesses and access controls of local database users • Understand web/database interaction from security perspective • Understand proxy server attacks (ala Adrian Lamo) • Block them CGI scripts! • Who is root and what can they really do?

  17. Common mistakes with payment processing • Provide too few or too many order confirmation pages • Confusing methods and misplaced buttons on order page • Make it hard for customers to buy things • Don’t make your customers read error screens

  18. ConEd bill payment issue • Claim they needed 100,000 customers to break even • https://m020-w5.coned.com/csol/main.asp • Note: lack of security, anyone with valid account number can see your bill! Try acct no. 434117168910006

  19. Preventing credit card fraud • Don't accept orders unless full address and phone number present • Be wary of different "bill to" and "ship to" addresses • Be careful with orders from free email services • Be wary of orders that are larger than typical amount • Pay extra attention to international orders

  20. Ways around firewalls • Uroam.com • GoToMyPC.com • Neoteris, other appliances • Remote control software (PC Anywhere, Ccopy, etc.) • Wireless LANs!

  21. Remote control loopholes • Do you even know if they are running? • Do port scans for common ports that are used: • PC Anywhere: 5631-2 • Control IT: 799 • Carbon Copy: 1680 • VNC: 5900

  22. Wireless LAN loopholes • Do you even know if they are running? • NetStumbler.com: good resource • Read this article too.

  23. Wireless VPN/firewall appliances • BlueSocket • ReefEdge • Vernier Networks • Mobility from Netmotion Wireless

  24. Conclusions and questions David Strom Technology Editor VAR Business magazine dstrom@cmp.com (516) 562-7151

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