STIGQter: STIG Summary: Microsoft Outlook 2016 Security Technical Implementation Guide Version: 2 Release: 1 Benchmark Date: 23 Oct 2020:

Automatic download of Internet Calendar appointment attachments must be disallowed.

DISA Rule

SV-228469r508021_rule

Vulnerability Number

V-228469

Group Title

SRG-APP-000209

Rule Version

DTOO284

Severity

CAT II

CCI(s)

• CCI-001169 - The information system prevents the download of organization-defined unacceptable mobile code.

Weight

10

Fix Recommendation

Set the policy value for User Configuration -> Administrative Templates -> Microsoft Outlook 2016 -> Account Settings -> Internet Calendars "Automatically download attachments" to "Disabled".

Check Contents

Verify the policy value for User Configuration -> Administrative Templates -> Microsoft Outlook 2016 -> Account Settings -> Internet Calendars "Automatically download attachments" is set to "Disabled".

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

HKCU\Software\Policies\Microsoft\Office\16.0\outlook\options\webcal

Criteria: If the value EnableAttachments is REG_DWORD = 0, this is not a finding.

Vulnerability Number

V-228469

Documentable

False

Rule Version

DTOO284

Severity Override Guidance

Verify the policy value for User Configuration -> Administrative Templates -> Microsoft Outlook 2016 -> Account Settings -> Internet Calendars "Automatically download attachments" is set to "Disabled".

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

HKCU\Software\Policies\Microsoft\Office\16.0\outlook\options\webcal

Criteria: If the value EnableAttachments is REG_DWORD = 0, this is not a finding.

Check Content Reference

M

Target Key

4224

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