Endpoint Protection

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  • 1.  SEP 12 - Restrict external web browsing if Win7 SP1 is not installed?

    Posted Jul 22, 2013 04:23 PM

    Hello all,

    I'm trying to find a way to have SEP 12 block all external web browsing if the client OS is not up to Windows 7 w/SP1.

    I've looked at ADC, NAC and various firewall options, but nothing is clicking for me.

    I've thought of two options using NAC or the firewall:

    1) Clear the proxy server on the client (NAC)

    2) Block port 80, etc...(Firewall)

    But don't know how to query the OS in a firewall rule.

    Anyone have any suggestions on how any of this might be accomplished?

    Thanks,

    -Mike



  • 2.  RE: SEP 12 - Restrict external web browsing if Win7 SP1 is not installed?
    Best Answer

    Posted Jul 22, 2013 04:34 PM

    This could prove challenging with SEP.

    For NAC, you can choose the OS and minimum SP they need to be on otherwise there a few remediation options if they're not. Blocking browsing isn't one of them

    I've never seen an option to do this using the firewall as well.

    You could do some sort of location awareness policy using the registry key type to check for the existence of a reg key, key name, or value and if it doesn't exist than apply a different fw policy where 80,443 (whatever port you browse out on) are blocked.



  • 3.  RE: SEP 12 - Restrict external web browsing if Win7 SP1 is not installed?

    Posted Jul 22, 2013 04:56 PM

    Thanks for the reply Brian...yeah, I thought this may be a toughie.

    I really like your suggestion of creating a new location based on a registry key, I think that could work.

    If I query: HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\CurrentBuildNumber

    And then throw in rules for all versions of the os that should be restricted, then yes...a custom firewall policy should do it. Have to play a bit and see if it does what I expect.

    Thanks for the creative suggestion!!

    -Mike



  • 4.  RE: SEP 12 - Restrict external web browsing if Win7 SP1 is not installed?

    Posted Jul 22, 2013 05:21 PM
    I haven't tested it but in theory it should work ;)


  • 5.  RE: SEP 12 - Restrict external web browsing if Win7 SP1 is not installed?

    Posted Jul 22, 2013 05:57 PM

    Using NAC to detect the OS, and then blanking the proxy in the registry is the easiest method I can think of...but sadly not all browsers rely on the registry for proxy settings. Thanks Firefox. frown

    I'l keep poking at it. wink

    Again, thank you!

    -Mike

     



  • 6.  RE: SEP 12 - Restrict external web browsing if Win7 SP1 is not installed?

    Posted Jul 22, 2013 07:09 PM

    Lemme know how it goes. Be cool to see it in action and if it does what you need.