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XCCDF
Microsoft Outlook 2013 STIG
DTOO242 - Level 1 Attachment Prompt on sending.
DTOO242 - Level 1 Attachment Prompt on sending.
An XCCDF Group - A logical subset of the XCCDF Benchmark
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DTOO242 - Level 1 Attachment Prompt on sending.
1 Rule
<GroupDescription></GroupDescription>
The prompt to display level 1 attachments must be disallowed when sending an item.
Medium Severity
<VulnDiscussion>To protect users from viruses and other harmful files, Outlook 2013 uses two levels of security, designated Level 1 and Level 2, to restrict access to files attached to e-mail messages or other items. Outlook completely blocks access to Level 1 files by default, and requires users to save Level 2 files to disk before opening them. Potentially harmful files can be classified into these two levels by file type extension, with all other file types considered safe. By default, when users attempt to send an item to which a level 1 file has been attached, Outlook warns them that the message contains a potentially unsafe attachment and that the recipient might not be able to access it. If this configuration is changed, Outlook will not display the warning when users send such items, which can cause users to lose access to important data.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility>System Administrator</Responsibility><Responsibility>Information Assurance Officer</Responsibility><IAControls></IAControls>