Detections
Analytics
DTOO275 - Intranet with Safe Zones for automatic picture downloads must be configured.
Information
This policy setting controls whether pictures and external content in HTML e-mail messages from untrusted senders on the local intranet are downloaded without Outlook users explictly choosing to do so. If you enable this policy setting, Outlook will automatically download external content in all e-mail messages sent over the local intranet and users will not be able to change the setting. If you disable or do not configure this policy setting, Outlook does not consider the local intranet a safe zone, which means that Outlook will not automatically download content from other servers in the Local Intranet zone unless the sender is included in the Safe Senders list. Recipients can choose to download external content from untrusted senders on a message-by-message basis.Solution
Set the policy value for User Configuration -> Administrative Templates -> Microsoft Outlook 2016 -> Security -> Automatic Picture Download Settings 'Include Intranet in Safe Zones for Automatic Picture Download' to 'Disabled'.See Also
http://iasecontent.disa.mil/stigs/zip/U_MS_Outlook_2016_V1R2_STIG.zip
Item Details
Audit Name: DISA STIG Microsoft Outlook 2016 v1r2
Category: SYSTEM AND COMMUNICATIONS PROTECTION
References: 800-53|SC-18(3), CAT|II, CCI|CCI-000366, Rule-ID|SV-85871r1_rule, STIG-ID|DTOO275, Vuln-ID|V-71247
Plugin: Windows
Control ID: 049c8e8ae20bb5ac74b6b3877b717157bad58d970f29af0efd4c1f7f0d251338