Adobe Reader DC must disable access to Webmail.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-64949	ARDC-CN-000090	SV-79439r2_rule		Medium

Description
When Webmail is disabled the user cannot configure a webmail account to send an open PDF document as an attachment. Users should have the ability to send documents as Microsoft Outlook attachments. The difference is that Outlook must be configured by the administrator on the local machine.

STIG	Date
Adobe Acrobat Reader DC Continuous Track Security Technical Implementation Guide	2018-06-12

Details

Check Text ( C-65607r3_chk )
Verify the following registry configuration: Note: The Key Name "cWebmailProfiles" is not created by default in the Adobe Reader DC install and must be created. Utilizing the Registry Editor, navigate to the following: HKEY_LOCAL_MACHINE\Software\Policies\Adobe\Acrobat Reader\DC\FeatureLockDown\cWebmailProfiles Value Name: bDisableWebmail Type: REG_DWORD Value: 1 If the value for bDisableWebmail is not set to “1” and Type configured to REG_DWORD or does not exist, then this is a finding. Admin Template path: Computer Configuration > Administrative Template > Adobe Reader DC Continuous > Preferences > 'WebMail' must be set to 'Disabled'. This policy setting requires the installation of the AcrobatDCContinuous custom templates included with the STIG package. "AcrobatDCContinuous.admx" and "AcrobatDCContinuous.adml" must be copied to the \Windows\PolicyDefinitions and \Windows\PolicyDefinitions\en-US directories respectively.

Check Text ( C-65607r3_chk )

Verify the following registry configuration:

Note: The Key Name "cWebmailProfiles" is not created by default in the Adobe Reader DC install and must be created.

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

Value Name: bDisableWebmail
Type: REG_DWORD
Value: 1

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

Admin Template path: Computer Configuration > Administrative Template > Adobe Reader DC Continuous > Preferences > 'WebMail' must be set to 'Disabled'.

This policy setting requires the installation of the AcrobatDCContinuous custom templates included with the STIG package. "AcrobatDCContinuous.admx" and "AcrobatDCContinuous.adml" must be copied to the \Windows\PolicyDefinitions and \Windows\PolicyDefinitions\en-US directories respectively.

Fix Text (F-70889r3_fix)
Configure the following registry value: Note: The Key Name "cWebmailProfiles" is not created by default in the Adobe Reader DC install and must be created. Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \Software\Policies\Adobe\Acrobat Reader\DC\FeatureLockDown\cWebmailProfiles Value Name: bDisableWebmail Type: REG_DWORD Value: 1 Configure the policy value for Computer Configuration > Administrative Template > Adobe Reader DC Continuous > Preferences > 'WebMail' to 'Disabled'. This policy setting requires the installation of the AcrobatDCContinuous custom templates included with the STIG package. "AcrobatDCContinuous.admx" and "AcrobatDCContinuous.adml" must be copied to the \Windows\PolicyDefinitions and \Windows\PolicyDefinitions\en-US directories respectively.

Fix Text (F-70889r3_fix)

Configure the following registry value:

Note: The Key Name "cWebmailProfiles" is not created by default in the Adobe Reader DC install and must be created.

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

Value Name: bDisableWebmail
Type: REG_DWORD
Value: 1

Configure the policy value for Computer Configuration > Administrative Template > Adobe Reader DC Continuous > Preferences > 'WebMail' to 'Disabled'.

This policy setting requires the installation of the AcrobatDCContinuous custom templates included with the STIG package. "AcrobatDCContinuous.admx" and "AcrobatDCContinuous.adml" must be copied to the \Windows\PolicyDefinitions and \Windows\PolicyDefinitions\en-US directories respectively.