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

The scanning of encrypted macros in open XML documents must be enforced.

DISA Rule

SV-85639r1_rule

Vulnerability Number

V-71015

Group Title

SRG-APP-000210

Rule Version

DTOO142

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 "Scan encrypted macros in Excel Open XML workbooks" to "Disabled".

Check Contents

Verify the policy value for User Configuration -> Administrative Templates -> Microsoft Excel 2016 -> Excel Options -> Security "Scan encrypted macros in Excel Open XML workbooks" is set to "Disabled". The option 'Enabled: Scan encrypted macros (default)' 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

Criteria: If the value ExcelBypassEncryptedMacroScan does not exist, this is not a finding. If the value is REG_DWORD = 0, this is not a finding.

Vulnerability Number

V-71015

Documentable

False

Rule Version

DTOO142

Severity Override Guidance

Verify the policy value for User Configuration -> Administrative Templates -> Microsoft Excel 2016 -> Excel Options -> Security "Scan encrypted macros in Excel Open XML workbooks" is set to "Disabled". The option 'Enabled: Scan encrypted macros (default)' 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

Criteria: If the value ExcelBypassEncryptedMacroScan does not exist, this is not a finding. If the value is REG_DWORD = 0, this is not a finding.

Check Content Reference

M

Target Key

3113

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