Details

The Windows Rights Management Add-on for Internet Explorer provides a way for users who do not use the 2013 Office release to view, but not alter, files with restricted permissions. By default, IRM-enabled files are saved in a format that cannot be viewed by using the Windows Rights Management Add-on. If this setting is enabled, an embedded rights-managed HTML version of the content is saved with each IRM-enabled file, which can be viewed in Internet Explorer using the add-on, representing the risk of documents being read by those without the rights and not intended to have access to the document.

Solution

Set the policy value for User Configuration -> Administrative Templates -> Microsoft Office 2013 -> Manage Restricted Permissions ‘Allow users with earlier versions of Office to read with browsers’ to ‘Disabled’.

Supportive Information

The following resource is also helpful.

• https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_MS_OfficeSystem_2013_V2R1_STIG.zip

This security hardening control applies to the following category of controls within NIST 800-53: Access Control.This control applies to the following type of system Windows.

References

• 800-53|AC-3(4)
• CAT|II
• CCI|CCI-002165
• Rule-ID|SV-228555r508020_rule
• STIG-ID|DTOO200
• STIG-Legacy|SV-52749
• STIG-Legacy|V-17583
• Vuln-ID|V-228555

Source

• Tenable.com/audits