Prompting behavior for Level 1 attachments on sending must be configured.

From Microsoft Outlook 2010

Part of DTOO242 - Level 1 Attachment Prompt on sending.

SV-33582r1_rule Prompting behavior for Level 1 attachments on sending must be configured.

Vulnerability discussion

To protect users from viruses and other harmful files, Outlook 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.

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Fix text

Set the policy value for User Configuration -> Administrative Templates -> Microsoft Outlook 2010 -> Security -> Security Form Settings -> Attachment Security “Do not prompt about Level 1 attachments when sending an item” to “Disabled”.

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