STIGQter: STIG Summary: Microsoft Excel 2016 Security Technical Implementation Guide Version: 1 Release: 2 Benchmark Date: 27 Oct 2017:

Document behavior if file validation fails must be set.

DISA Rule

SV-85653r1_rule

Vulnerability Number

V-71029

Group Title

SRG-APP-000210

Rule Version

DTOO292

Severity

CAT II

CCI(s)

• CCI-001170 - The information system prevents the automatic execution of mobile code in organization-defined software applications.

Weight

10

Fix Recommendation

Set the policy value for User Configuration -> Administrative Templates -> Microsoft Excel 2016 -> Excel Options -> Security -> Trust Center -> Protected View "Set document behavior if file validation fails" to "Disabled".

Check Contents

Verify the policy value for User Configuration -> Administrative Templates -> Microsoft Excel 2016 -> Excel Options -> Security -> Trust Center -> Protected View "Set document behavior if file validation fails" is set to "Disabled". The option 'Enabled: Open in Protected View' and Unchecked for 'Do not allow edit' is also an acceptable value.

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

HKCU\Software\Policies\Microsoft\Office\16.0\excel\security\filevalidation

Criteria: If the value openinprotectedview does not exist, this is not a finding. If the value is REG_DWORD = 1, this is not a finding.

If the value DisableEditFromPV is set to REG_DWORD = 1, this is not a finding. If the value is set to REG_DWORD = 0, this is a finding.

Vulnerability Number

V-71029

Documentable

False

Rule Version

DTOO292

Severity Override Guidance

Verify the policy value for User Configuration -> Administrative Templates -> Microsoft Excel 2016 -> Excel Options -> Security -> Trust Center -> Protected View "Set document behavior if file validation fails" is set to "Disabled". The option 'Enabled: Open in Protected View' and Unchecked for 'Do not allow edit' is also an acceptable value.

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

HKCU\Software\Policies\Microsoft\Office\16.0\excel\security\filevalidation

Criteria: If the value openinprotectedview does not exist, this is not a finding. If the value is REG_DWORD = 1, this is not a finding.

If the value DisableEditFromPV is set to REG_DWORD = 1, this is not a finding. If the value is set to REG_DWORD = 0, this is a finding.

Check Content Reference

M

Target Key

3113

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