Evaluate Saved from URL mark when launched from OutLook

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-17175	DTOO117 - Outlook	SV-18203r1_rule	ECSC-1	Medium

Description
Typically, when Internet Explorer loads a Web page from a UNC share that contains a Mark of the Web (MOTW) comment that indicates the page was saved from a site on the Internet, Internet Explorer runs the page in the Internet security zone instead of the less restrictive Local Intranet security zone. This functionality can be controlled separately for instances of Internet Explorer spawned by 2007 Office applications (for example, if a user clicks a link in an Office document or selects a menu option that loads a Web page). If Internet Explorer does not evaluate the page for a MOTW, potentially dangerous code could be allowed to run.

Description

Typically, when Internet Explorer loads a Web page from a UNC share that contains a Mark of the Web (MOTW) comment that indicates the page was saved from a site on the Internet, Internet Explorer runs the page in the Internet security zone instead of the less restrictive Local Intranet security zone. This functionality can be controlled separately for instances of Internet Explorer spawned by 2007 Office applications (for example, if a user clicks a link in an Office document or selects a menu option that loads a Web page). If Internet Explorer does not evaluate the page for a MOTW, potentially dangerous code could be allowed to run.

STIG	Date
Microsoft Outlook 2007	2014-04-03

Details

Check Text ( C-17886r1_chk )
If Office 2007 PRE SP2: The policy value for Computer Configuration -> Administrative Templates -> Microsoft Office 2007 system (Machine) -> Security Settings -> IE Security “Saved from URL” will be set to “Enabled” and ‘outlook.exe’ is checked. Procedure: Use the Windows Registry Editor to navigate to the following key: HKLM\Software\Policies\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_UNC_SAVEDFILECHECK Criteria: If the value outlook.exe is REG_DWORD = 1, this is not a finding. If Office 2007 SP2: The policy value for Computer Configuration -> Administrative Templates -> Microsoft Office 2007 system (Machine) -> Security Settings -> IE Security “Saved from URL” will be set to “Enabled” and ‘outlook.exe’ is checked. Procedure: Use the Windows Registry Editor to navigate to the following key: HKLM\Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_UNC_SAVEDFILECHECK Criteria: If the value outlook.exe is REG_DWORD = 1, this is not a finding.

Check Text ( C-17886r1_chk )

If Office 2007 PRE SP2: The policy value for Computer Configuration -> Administrative Templates -> Microsoft Office 2007 system (Machine) -> Security Settings -> IE Security “Saved from URL” will be set to “Enabled” and ‘outlook.exe’ is checked.

Procedure: Use the Windows Registry Editor to navigate to the following key:

HKLM\Software\Policies\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_UNC_SAVEDFILECHECK

Criteria: If the value outlook.exe is REG_DWORD = 1, this is not a finding.

If Office 2007 SP2: The policy value for Computer Configuration -> Administrative Templates -> Microsoft Office 2007 system (Machine) -> Security Settings -> IE Security “Saved from URL” will be set to “Enabled” and ‘outlook.exe’ is checked.

Procedure: Use the Windows Registry Editor to navigate to the following key:

HKLM\Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_UNC_SAVEDFILECHECK

Criteria: If the value outlook.exe is REG_DWORD = 1, this is not a finding.

Fix Text (F-17050r1_fix)
The policy value for Computer Configuration -> Administrative Templates -> Microsoft Office 2007 system (Machine) -> Security Settings -> IE Security “Saved from URL” will be set to “Enabled” and ‘outlook.exe’ is checked. Note: In Office SP2 adm use, filtering in GPEDIT.MSC should have deselected any checks in "Only show configured policy settings" box, and "Only show policy settings that can be fully managed" box, in order to view the hive within the GP Console for policy use.

Fix Text (F-17050r1_fix)

The policy value for Computer Configuration -> Administrative Templates -> Microsoft Office 2007 system (Machine) -> Security Settings -> IE Security “Saved from URL” will be set to “Enabled” and ‘outlook.exe’ is checked.

Note: In Office SP2 adm use, filtering in GPEDIT.MSC should have deselected any checks in "Only show configured policy settings" box, and "Only show policy settings that can be fully managed" box, in order to view the hive within the GP Console for policy use.