AutoComplete feature for forms must be disallowed.

From Microsoft Internet Explorer 11 Security Technical Implementation Guide

Part of DTBI690-IE11-AutoComplete for forms

Associated with IA controls: ECSC-1

Associated with: CCI-000381

SV-59673r1_rule AutoComplete feature for forms must be disallowed.

Vulnerability discussion

This AutoComplete feature suggests possible matches when users are filling in forms. It is possible that this feature will cache sensitive data and store it in the user's profile, where it might not be protected as rigorously as required by organizational policy. If you enable this setting, the user is not presented with suggested matches when filling in forms. If you disable this setting, the user is presented with suggested possible matches when filling forms. If you do not configure this setting, the user has the freedom to turn on the auto-complete feature for forms. To display this option, the user opens the Internet Options dialog box, clicks the "Contents" tab, and clicks the "Settings" button.

Check content

The policy value for User Configuration -> Administrative Templates -> Windows Components -> Internet Explorer -> 'Disable AutoComplete for forms' must be 'Enabled'. Procedure: Use the Windows Registry Editor to navigate to the following key: HKCU\Software\Policies\Microsoft\Internet Explorer\Main Criteria: If the value "Use FormSuggest" is REG_SZ = no, this is not a finding.

Fix text

Set the policy value for User Configuration -> Administrative Templates -> Windows Components -> Internet Explorer -> 'Disable AutoComplete for forms' to 'Enabled'.

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