Turn on Protected Mode for Restricted Sites Zone is not enabled.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-15528	DTBI490	SV-25593r1_rule	ECSC-1	Medium

Description
VISTA Only Protected mode protects Internet Explorer from exploited vulnerabilities by reducing the locations Internet Explorer can write to in the registry and the file system. If you enable this policy setting, Protected Mode will be turned on. Users will not be able to turn off protected mode. If you disable this policy setting, Protected Mode will be turned off. It will revert to Internet Explorer 6 behavior that allows for Internet Explorer to write to the registry and the file system. Users will not be able to turn on protected mode. If you do not configure this policy, users will be able to turn on or off protected mode. Requires Windows Vista; will be ignored by Windows XP.

Description

VISTA Only Protected mode protects Internet Explorer from exploited vulnerabilities by reducing the locations Internet Explorer can write to in the registry and the file system. If you enable this policy setting, Protected Mode will be turned on. Users will not be able to turn off protected mode. If you disable this policy setting, Protected Mode will be turned off. It will revert to Internet Explorer 6 behavior that allows for Internet Explorer to write to the registry and the file system. Users will not be able to turn on protected mode. If you do not configure this policy, users will be able to turn on or off protected mode. Requires Windows Vista; will be ignored by Windows XP.

STIG	Date
Internet Explorer 8 STIG	2013-09-30

Details

Check Text ( C-27073r1_chk )
The policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Internet Explorer -> Internet Control Panel -> Security Page -> Restricted Sites Zone -> "Turn on Protected Mode" will be set to “Enabled” and "Enable" selected from down drop box. Procedure: Use the Windows Registry Editor to navigate to the following key: HKLM\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4 Criteria: If the value 2500 is REG_DWORD = 0, this is not a finding.

Check Text ( C-27073r1_chk )

The policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Internet Explorer -> Internet Control Panel -> Security Page -> Restricted Sites Zone -> "Turn on Protected Mode" will be set to “Enabled” and "Enable" selected from down drop box. Procedure: Use the Windows Registry Editor to navigate to the following key: HKLM\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4 Criteria: If the value 2500 is REG_DWORD = 0, this is not a finding.

Fix Text (F-23175r1_fix)
The policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Internet Explorer -> Internet Control Panel -> Security Page -> Restricted Sites Zone -> "Turn on Protected Mode" will be set to “Enabled” and "Enable" selected from down drop box. Procedure: Use the Windows Registry Editor to navigate to the following key: HKLM\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4 Criteria: Set the value 2500 to REG_DWORD = 0.

Fix Text (F-23175r1_fix)