Intranet with Safe Zones for automatic picture downloads must be configured.
An XCCDF Rule
Description
Malicious e-mail senders can send HTML e-mail messages with embedded Web beacons, which are pictures and other content from external servers that can be used to track whether recipients open the messages. Viewing e-mail messages with Web beacons in them provides confirmation that the recipient's e-mail address is valid, which leaves the recipient vulnerable to additional spam and harmful e-mail. By default, Outlook does not download external content in HTML e-mail messages from untrusted senders over the local intranet. If this configuration is changed, Outlook will display external content in all HTML e-mail messages received via the local intranet, which could include Web beacons.
| Property | Value |
|---|---|
| Responsibility | System Administrator |
- ID
- SV-33562r2_rule
- Version
- DTOO275 - Outlook
- Severity
- Medium
- References
- Updated
Remediation Templates
A Manual Procedure
Set the policy value for User Configuration -> Administrative Templates -> Microsoft Outlook 2010 -> Security -> Automatic Picture Download Settings “Include Intranet in Safe Zones for Automatic Picture Download” to “Disabled”.