STIGQter: STIG Summary: Microsoft Outlook 2010 STIG Version: 1 Release: 13 Benchmark Date: 27 Apr 2018:

Level 1 file extensions must be blocked and not removed.

DISA Rule

SV-33583r1_rule

Vulnerability Number

V-17774

Group Title

DTOO244 - Lvl 1 File extensions

Rule Version

DTOO244 - Outlook

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 Outlook 2010 -> Security -> Security Form Settings -> Attachment Security “Remove file extensions blocked as Level 1” to “Disabled”.

Check Contents

The policy value for User Configuration -> Administrative Templates -> Microsoft Outlook 2010 -> Security -> Security Form Settings -> Attachment Security “Remove file extensions blocked as Level 1” must be set to “Disabled”.

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

HKCU\Software\Policies\Microsoft\Office\14.0\outlook\security\FileExtensionsRemoveLevel1

Criteria: If registry key exist, this is a finding.

Vulnerability Number

V-17774

Documentable

False

Rule Version

DTOO244 - Outlook

Severity Override Guidance

The policy value for User Configuration -> Administrative Templates -> Microsoft Outlook 2010 -> Security -> Security Form Settings -> Attachment Security “Remove file extensions blocked as Level 1” must be set to “Disabled”.

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

HKCU\Software\Policies\Microsoft\Office\14.0\outlook\security\FileExtensionsRemoveLevel1

Criteria: If registry key exist, this is a finding.

Check Content Reference

M

Responsibility

Information Assurance Officer

Target Key

2024

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