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← Back to Adobe Acrobat Professional DC Continuous Track Security Technical Implementation Guide

V-213119

CAT II (Medium)

Adobe Acrobat Pro DC Continuous PDF file attachments must be blocked.

Rule ID

SV-213119r766517_rule

STIG

Adobe Acrobat Professional DC Continuous Track Security Technical Implementation Guide

Version

V2R1

CCIs

CCI-000381

Discussion

Acrobat Pro allows for files to be attached to PDF documents. Attachments represent a potential security risk because they can contain malicious content, open other dangerous files, or launch applications.This feature prevents users from opening or launching file types other than PDF or FDF and disables the menu option to re-enable.

Check Content

Verify the following registry configuration:

Utilizing the Registry Editor, navigate to the following: HKEY_LOCAL_MACHINE\Software\Policies\Adobe\Adobe Acrobat\DC\FeatureLockDown

Value Name: iFileAttachmentPerms
Type: REG_DWORD
Value: 1

If the value for iFileAttachmentPerms is not set to “1” and Type is not configured to REG_DWORD or does not exist, this is a finding.

GUI path: Edit > Preferences > Trust Manager > In the 'PDF File Attachments' section > Verify  'Allow opening of non-PDF file attachments with external applications' checkbox is unchecked and greyed out (locked).  If the box is checked and not greyed out (locked), this is a finding.

Admin Template path: Computer Configuration > Administrative Templates > Adobe Acrobat Pro DC Continuous > Preferences > Trust Manager > 'Allow opening of non-PDF file attachments with external applications' must be set to 'Disabled'.

Fix Text

Configure the following registry value:

Registry Hive:
HKEY_LOCAL_MACHINE
Registry Path:
\Software\Policies\Adobe\Adobe Acrobat\DC\FeatureLockDown

Value Name: iFileAttachmentPerms
Type: REG_DWORD
Value: 1

Configure the policy value for Computer Configuration > Administrative Templates > Adobe Acrobat Pro DC Continuous > Preferences > Trust Manager > 'Allow opening of non-PDF file attachments with external applications' to 'Disabled'.