Finding ID | Version | Rule ID | IA Controls | Severity |
---|---|---|---|---|
V-26634 | DTOO314 | SV-54062r1_rule | ECSC-1 | Medium |
Description |
---|
Outlook uses HTML as the default email format. HTML format poses a security risk by embedding information into the email itself, which could allow for release of sensitive information. If a user attempted to insert an HTML link into an email message, the link itself may direct to a malicious website. By sending in that format, the recipient would be subject to becoming infected by the malicious website. |
STIG | Date |
---|---|
Microsoft Outlook 2013 STIG | 2014-01-06 |
Check Text ( C-48002r1_chk ) |
---|
Verify the policy value for User Configuration -> Administrative Templates -> Microsoft Outlook 2013 -> Outlook Options -> Mail Format -> Internet Formatting -> Message Format "Set message format" is "Enabled: Plain Text". 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 EditorPreference is REG_DWORD = 65536 (dec), this is not a finding. |
Fix Text (F-46942r1_fix) |
---|
Set the policy value for User Configuration -> Administrative Templates -> Microsoft Outlook 2013 -> Outlook Options -> Mail Format -> Internet Formatting -> Message Format "Set message format" to "Enabled: Plain Text". |