Title

Prevent users from customizing attachment security settings - Outlook (Cat II impact)

Discussion

All installed trusted COM addins can be trusted. Exchange Settings for the addins still override if present and this option is selected.

Check Content

The policy value for User Configuration -> Administrative Templates -> Microsoft Office Outlook 2007 -> Security “Prevent users from customizing attachment security” will be set to “Enabled”. Procedure: Use the Windows Registry Editor to navigate to the following key: HKCU\Software\Policies\Microsoft\Office\12.0\Outlook Criteria: If the value DisallowAttachmentCustomization is REG_DWORD = 1, this is not a finding.

Fix Text

The policy value for User Configuration -> Administrative Templates -> Microsoft Office Outlook 2007 -> Security “Prevent users from customizing attachment security” will be set to “Enabled”.

Additional Identifiers

Rule ID: SV-18970r1_rule

Vulnerability ID: V-17766

Group Title:

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.