Turn on the auto-complete feature for user names and passwords on forms must be disabled.

From Microsoft Internet Explorer 11 Security Technical Implementation Guide

Part of DTBI725-IE11-Auto-complete feature for user names and passwords

Associated with IA controls: ECSC-1

Associated with: CCI-000381

SV-59681r1_rule Turn on the auto-complete feature for user names and passwords on forms must be disabled.

Vulnerability discussion

This policy setting controls automatic completion of fields in forms on web pages. It is possible that malware could be developed which would be able to extract the cached user names and passwords from the currently logged on user, which an attacker could then use to compromise that user's online accounts. If you enable this setting, the user cannot change the 'User name and passwords on forms' or 'prompt me to save passwords'. The Auto Complete feature for" User names and passwords on forms" will be turned on. If you disable this setting, the user cannot change the 'User name and passwords on forms' or 'prompt me to save passwords'. The Auto Complete feature for "User names and passwords on forms" is turned off. The user also cannot opt to be prompted to save passwords. If you do not configure this setting, the user has the freedom of turning on Auto Complete for "User name and passwords on forms", and the option of prompting to save passwords.

Check content

The policy value for User Configuration -> Administrative Templates -> Windows Components -> Internet Explorer -> 'Turn on the auto-complete feature for user names and passwords on forms' must be 'Disabled'. Procedure: Use the Windows Registry Editor to navigate to the following key: HKCU\Software\Policies\Microsoft\Internet Explorer\Main Criteria: If the value "FormSuggest Passwords" is REG_SZ = 'no', this is not a finding. AND Procedure: Use the Windows Registry Editor to navigate to the following key: HKCU\Software\Policies\Microsoft\Internet Explorer\Main Criteria: If the value "FormSuggest PW Ask" is REG_SZ = 'no', this is not a finding.

Fix text

Set the policy value for User Configuration -> Administrative Templates -> Windows Components -> Internet Explorer -> 'Turn on the auto-complete feature for user names and passwords on forms' to 'Disabled'.

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