RSS Feeds must be disallowed.
An XCCDF Rule
Description
<VulnDiscussion>Users can subscribe to RSS feeds from within Outlook and read RSS items like email messages. If an organization has policies that govern the use of external resources such as RSS feeds, allowing users to subscribe to the RSS feed in Outlook will enable them to violate those policies.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility>System Administrator</Responsibility><Responsibility>Information Assurance Officer</Responsibility><IAControls></IAControls>
- ID
- SV-54055r2_rule
- Severity
- Medium
- References
- Updated
Remediation - Manual Procedure
NOTE:
If the use of RSS feeds integrated into Outlook is a mission need, and the network environment is configured with the following criteria:
1. Both the website issuing the RSS feeds and the Outlook email client must have an available network path to each other.
2. Neither the website issuing the RSS feeds nor the Outlook email client has a network path to the public Internet.
Set the policy value for User Configuration -> Administrative Templates -> Microsoft Outlook 2013 -> Account Settings -> RSS Feeds "Turn off RSS feature" to "Enabled".