Details

InfoPath provides three security levels for form templates: Restricted, Domain, and Full Trust. The security levels determine whether a form template can access data on other domains, or access files and settings on your computer. Fully trusted forms have a Full Trust security level, and can access files and settings on users’ computers. The form template for these forms must be digitally signed with a trusted root certificate, or installed on users’ computers.

By default, InfoPath can open email forms with full trust. If an attacker designs and sends a dangerous fully trusted email form, it could affect users’ computers or give the attacker access to sensitive information.

Solution

Set the policy value for User Configuration -> Administrative Templates -> Microsoft InfoPath 2013 -> InfoPath e-mail forms ‘Disable e-mail forms from the Full Trust security zone’ to ‘Enabled’.

Supportive Information

The following resource is also helpful.

• https://iasecontent.disa.mil/stigs/zip/U_MS_InfoPath_2013_V1R5_STIG.zip

This security hardening control applies to the following category of controls within NIST 800-53: System and Communications Protection.This control applies to the following type of system Windows.

References

• 800-53|SC-18(4)
• CAT|II
• CCI|CCI-001170
• Rule-ID|SV-53383r1_rule
• STIG-ID|DTOO173
• Vuln-ID|V-17655

Source

• Tenable.com/audits