Finding ID | Version | Rule ID | IA Controls | Severity |
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V-17771 | DTOO215 | SV-53868r1_rule | ECSC-1 | Medium |
Description |
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Outlook can display email messages and other items in three formats: plain text, Rich Text Format (RTF), and HTML. By default, Outlook displays digitally signed email messages in the format they were received in. |
STIG | Date |
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Microsoft Outlook 2013 STIG | 2014-01-06 |
Check Text ( C-47909r1_chk ) |
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Verify the policy value for User Configuration -> Administrative Templates -> Microsoft Outlook 2013 -> Outlook Options -> Preferences -> E-mail Options "Read signed e-mail as plain text" is set to "Enabled". Procedure: Use the Windows Registry Editor to navigate to the following key: HKCU\Software\Policies\Microsoft\Office\15.0\outlook\options\mail Criteria: If the value ReadSignedAsPlain is REG_DWORD = 1, this is not a finding. |
Fix Text (F-46773r1_fix) |
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Set the policy value for User Configuration -> Administrative Templates -> Microsoft Outlook 2013 -> Outlook Options -> Preferences -> E-mail Options "Read signed e-mail as plain text" to "Enabled". |