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Internet Explorer 7 Advice for the NHS using NPfIT Applications September 2006 Agenda Summary Advice for the NHS IE7 Upgrade Process Options IE7 Security Features Summary Advice for the NHS If you use NPfIT applications provided by an LSP or NASP Don’t install IE7 yet

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internet explorer 7

Internet Explorer 7

Advice for the NHS using NPfIT Applications

September 2006

agenda
Agenda
  • Summary Advice for the NHS
  • IE7 Upgrade Process Options
  • IE7 Security Features
summary advice for the nhs
Summary Advice for the NHS
  • If you use NPfIT applications provided by an LSP or NASP
    • Don’t install IE7 yet
    • Install the Blocker to prevent WU automatically upgrading systems to IE7
    • Test all your own critical applications with the latest version of IE7 available
    • Wait until your LSP confirms that all NCRS/NPfIT applications are compatible
  • If you don’t yet use NPfIT applications provided by an LSP or NASP
    • Don’t install IE7 yet
    • Install the Blocker to prevent WU automatically upgrading systems to IE7
    • Test all critical applications with the latest version of IE7 available
upgrade to ie7
New Features

Tabbed browser

RSS

Page zoom

More Manageable

Group Policy settings

Enhanced Security

Only available on

Windows XP SP2

Windows Server 2003 SP1

IE7 Beta known to break some NCRS applications

Upgrade to IE7?

Minus

Plus

other windows versions
Other Windows Versions
  • All versions of Windows prior to XP SP2 should continue to run IE6
ie7 automatic upgrade
IE7 Automatic Upgrade

Microsoft treating IE7 as a “Hot Fix” to IE6

When released IE7 will be a High Priority Update on Windows Update (WSUS)

It will be automatically installed on clients using Windows Update (WSUS)

Some NCRS/NPfIT applications are known not to work with IE7 beta

How do we prevent the automatic install of IE7?

preventing the upgrade
Preventing the Upgrade

If using WSUS, SUS or SMS to deploy updates

Do not approve the IE7 update

If manually using Windows Update (from Start menu)

Tools available to prevent the IE7 update being applied

Download from Microsoft Web site as a toolkit from

http://go.microsoft.com/fwlink/?linkid=65788

Where users have Local Administrator rights

Either remove those rights (unlikely) or provide advice & guidance

disabling delivery of ie7
Disabling Delivery of IE7

Will prevent machines receiving IE7 as a high-priority update via Automatic Updates and the “Express” install option on the Windows Update and Microsoft Update sites.

The Blocker Toolkit will not expire

Will NOT prevent manual installations of IE7 as a Recommended Update from the Windows Update or Microsoft Update sites, from the Microsoft Download Center (sic), or from external media.

Erroneous IE7 installations can be uninstalled using Add/Remove Programs

how the toolkit works
How the Toolkit works

Blocker script sets a registry setting on a computer

Registry key: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Setup\7.0

Key value name: DoNotAllowIE70

Value set to 1 to block install

Script run asIE70Blocker.cmd [<machine name>] [/B] [/U] [/H]

Group Policy template ADM file also supplied

ie7 security features
IE7 Security Features

Protect the machine

Protect the user against misleading downloads and websites

protect the machine
Protect the Machine

Unified URL parsing

URLs passed as strings may be parsed inconsistently through the stack

Special characters complicate URL parsing

http://www.good.com@bad.com

Cross-domain security enhancements

Limit scripts on web pages from interacting with content from other domains or windows

Code quality improvements to reduce buffer overruns

protect the machine14
Protect the Machine

ActiveX Opt-in

IE6 blocked signed ActiveX controls with the Information bar,but pre-installed controls would run silently

IE7 blocks pre-installed ActiveX controls with the Information bar on first run (or via Add-on Manager)

Protected Mode (Microsoft Windows Vista only)

IE7 runs in isolation from other applications

Cannot write beyond Temporary Internet Files without user consent

protect the user
Protect the User

Download scanning with Windows Defender

Phishing Filter

High-assurance SSL and address bar

Address bar shown in all windows

Colour of address bar indicates potential threat

protect the user16
Protect the User

Dangerous settings notification

"Fix My Settings" feature – warns when your Internet settings may be unsafe and resets them

Secure defaults for IDN (International Domain Names)

Warns when visually similar characters in URL are not in same language

Parental controls (Windows Vista only)

Can restrict access

Logs sites browsed

resources further information
http://www.microsoft.com/windows/ie/ie7/about/features/default.mspxhttp://www.microsoft.com/windows/ie/ie7/about/features/default.mspx

http://blogs.msdn.com/ie

Toolkit to block upgrade to IE7

http://go.microsoft.com/fwlink/?linkid=65788

Resources & further information