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Internet Explorer must be configured to make Proxy settings per user.


Overview

Finding ID Version Rule ID IA Controls Severity
V-3430 DTBI367 SV-40555r1_rule ECSC-1 Low
Description
This setting controls whether or not the Internet Explorer proxy settings are configured on a per-user or per-machine basis. If you enable this policy, users cannot set user specific proxy settings. They must use the zones created for all users of the computer. If you disable this policy or do not configure it, users of the same computer can establish their own proxy settings. This policy is intended to ensure that proxy settings apply uniformly to the same computer and do not vary from user to user.
STIG Date
Internet Explorer 9 Security Technical Implementation Guide 2014-03-21

Details

Check Text ( http://oval.mitre.org/XMLSchema/oval-definitions-5 )
The policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Internet Explorer “Make proxy settings per-machine (rather than per user)” must be “Disabled”.

Procedure: Use the Windows Registry Editor to navigate to the following key: HKLM\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings

Criteria: If the value ProxySettingsPerUser is REG_DWORD = 1, this is not a finding.
Fix Text (F-34429r1_fix)
Set the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Internet Explorer “Make proxy settings per-machine (rather than per user)” to “Disabled”.