STIGQter STIGQter: STIG Summary: Microsoft Office System 2016 Security Technical Implementation Guide Version: 1 Release: 1 Benchmark Date: 14 Nov 2016:

The encryption type for password protected Open XML files must be set.

DISA Rule

SV-85489r1_rule

Vulnerability Number

V-70865

Group Title

SRG-APP-000231

Rule Version

DTOO189

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

Set the policy value for User Configuration -> Administrative Templates -> Microsoft Office 2016 -> Security Settings "Encryption type for password protected Office Open XML files" to "Enabled (Microsoft Enhanced RSA and AES Cryptographic Provider,AES 256,256)".

Check Contents

Verify the policy value for User Configuration -> Administrative Templates -> Microsoft Office 2016 -> Security Settings "Encryption type for password protected Office Open XML files" is set to "Enabled (Microsoft Enhanced RSA and AES Cryptographic Provider,AES 256,256)".

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

HKCU\Software\Policies\Microsoft\Office\16.0\common\security

Criteria: If the value OpenXMLEncryption is REG_SZ = "Microsoft Enhanced RSA and AES Cryptographic Provider,AES 256,256", this is not a finding.

Vulnerability Number

V-70865

Documentable

False

Rule Version

DTOO189

Severity Override Guidance

Verify the policy value for User Configuration -> Administrative Templates -> Microsoft Office 2016 -> Security Settings "Encryption type for password protected Office Open XML files" is set to "Enabled (Microsoft Enhanced RSA and AES Cryptographic Provider,AES 256,256)".

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

HKCU\Software\Policies\Microsoft\Office\16.0\common\security

Criteria: If the value OpenXMLEncryption is REG_SZ = "Microsoft Enhanced RSA and AES Cryptographic Provider,AES 256,256", this is not a finding.

Check Content Reference

M

Target Key

3117

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