STIGViewer Support

Files located in unsafe locations must be opened in Protected view in Word.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-223403O365-WD-000004SV-223403r961086_ruleCCI-001662medium
Description
This policy setting lets you determine if files located in unsafe locations will open in Protected View. If you have not specified unsafe locations, only the "Downloaded Program Files" and "Temporary Internet Files" folders are considered unsafe locations. If you enable this policy setting, files located in unsafe locations do not open in Protected View. If you disable or do not configure this policy setting, files located in unsafe locations open in Protected View.
STIGDate
Microsoft Office 365 ProPlus Security Technical Implementation Guide2025-03-05

Related Frameworks

1 mapping across 4 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (3) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

END-10Mobile Code
0.50
VPM-02Vulnerability Remediation Process
0.50
VPM-04Continuous Vulnerability Remediation Activities
0.50
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (4) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

CM-7Least Functionality
1.00
SC-18(1)Identify Unacceptable Code and Take Corrective Actions
1.00
SC-18(3)Prevent Downloading and Execution
1.00
SC-18(4)Prevent Automatic Execution
1.00
CCI1 mapping
NIST CSF 2.00 mappings

No source states a mapping between these directly.

Also reachable in 4 hops (2) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

Details

Check Text (C-223403r961086_chk)

Verify the policy value for User Configuration >> Administrative Templates >> Microsoft Word 2016 >> Word Options >> Security >> Trust Center >> Protected View >> Do not open files in unsafe locations in Protected View is set to "Disabled". Use the Windows Registry Editor to navigate to the following key: HKCU\software\policies\microsoft\office\16.0\word\security\protectedview. If the value for disableunsafelocationsinpv is REG_DWORD = 0, this is not a finding. If the value does not exist, this is not a finding. If the value is REG_DWORD = 1, this is a finding.

Fix Text (F-25064r442429_fix)

Set the policy setting, User Configuration >> Administrative Templates >> Microsoft Word 2016 >> Word Options >> Security >> Trust Center >> Protected View >> Do not open files in unsafe locations in Protected View to "Disabled".