Users customizing attachment security settings must be prevented.

From Microsoft Outlook 2010 STIG

Part of DTOO238 - Prev't users customizing security set

Associated with: CCI-001170

SV-33525r1_rule Users customizing attachment security settings must be prevented.

Vulnerability 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 Outlook 2010 -> Security “Prevent users from customizing attachment security settings” must be set to “Enabled”. Procedure: Use the Windows Registry Editor to navigate to the following key: HKCU\Software\Policies\Microsoft\Office\14.0\outlook Criteria: If the value DisallowAttachmentCustomization is REG_DWORD = 1, this is not a finding.

Fix text

Set the policy value for User Configuration -> Administrative Templates -> Microsoft Outlook 2010 -> Security “Prevent users from customizing attachment security settings” to “Enabled”.

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