STIGQter: STIG Summary: Microsoft Excel 2010 Version: 1 Release: 11 Benchmark Date: 27 Apr 2018:

Open/Save actions for Excel 3 worksheets must be blocked.

DISA Rule

SV-34259r1_rule

Vulnerability Number

V-26601

Group Title

DTOO116 - Excel 3 worksheets

Rule Version

DTOO116 - Excel

Severity

CAT II

CCI(s)

• CCI-001662 - The information system takes organization-defined corrective action when organization-defined unacceptable mobile code is identified.

Weight

10

Fix Recommendation

Set the policy value for User Configuration -> Administrative Templates -> Microsoft Excel 2010 -> Excel Options -> Security -> Trust Center -> File Block Settings “Excel 3 worksheets” to “Enabled: Open/Save blocked, use open policy".

Check Contents

The policy value for User Configuration -> Administrative Templates -> Microsoft Excel 2010 -> Excel Options -> Security -> Trust Center -> File Block Settings “Excel 3 worksheets” must be “Enabled: Open/Save blocked, use open policy".

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

HKCU\Software\Policies\Microsoft\Office\14.0\excel\security\fileblock

Criteria: If the value XL3Worksheets is REG_DWORD = 2, this is not a finding.

Vulnerability Number

V-26601

Documentable

False

Rule Version

DTOO116 - Excel

Severity Override Guidance

The policy value for User Configuration -> Administrative Templates -> Microsoft Excel 2010 -> Excel Options -> Security -> Trust Center -> File Block Settings “Excel 3 worksheets” must be “Enabled: Open/Save blocked, use open policy".

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

HKCU\Software\Policies\Microsoft\Office\14.0\excel\security\fileblock

Criteria: If the value XL3Worksheets is REG_DWORD = 2, this is not a finding.

Check Content Reference

M

Responsibility

Information Assurance Officer

Target Key

2021

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