STIGQter: STIG Summary: Microsoft Office System 2010 STIG Version: 1 Release: 12 Benchmark Date: 27 Apr 2018:

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

DISA Rule

SV-33465r3_rule

Vulnerability Number

V-17619

Group Title

DTOO189 - Encryption Type for Pwd Protected files

Rule Version

DTOO189 - Office System

Severity

CAT II

CCI(s)

• CCI-001199 - The information system protects the confidentiality and/or integrity of organization-defined information at rest.

Weight

10

Fix Recommendation

Set the policy value for User Configuration -> Administrative Templates -> Microsoft Office 2010 -> 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

The policy value for User Configuration -> Administrative Templates -> Microsoft Office 2010 -> Security Settings “Encryption type for password protected Office Open XML files” must be 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\14.0\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-17619

Documentable

False

Rule Version

DTOO189 - Office System

Severity Override Guidance

The policy value for User Configuration -> Administrative Templates -> Microsoft Office 2010 -> Security Settings “Encryption type for password protected Office Open XML files” must be 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\14.0\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

Responsibility

Information Assurance Officer

Target Key

2105

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