Details

Acrobat Pro DC provides a Webmail capability. This allows users to send PDFs as email attachments using any mail account that supports SMTP/IMAP protocols. In addition to existing desktop email clients, users can now configure these mail accounts by providing User Name, Password, IMAP and SMTP details. The capability allows users to utilize Gmail and Yahoo mail accounts to send PDF files directly from within the Acrobat application. This capability allows the user to by-pass existing email protections provided by DoD email services.

Solution

Configure the following registry value:

Registry Hive:
HKEY_LOCAL_MACHINE
Registry Path:
SoftwarePoliciesAdobeAdobe AcrobatDCFeatureLockDowncWebmailProfiles

Value Name: bDisableWebmail
Type: REG_DWORD
Value: 1

Configure the policy value for Computer Configuration > Administrative Template > Adobe Acrobat Pro DC Continuous > Preferences > ‘WebMail’ to ‘Disabled’.

Supportive Information

The following resource is also helpful.

• https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_Adobe_Acrobat_Pro_DC_Continuous_V2R1_STIG.zip

This security hardening control applies to the following category of controls within NIST 800-53: Configuration Management.This control applies to the following type of system Windows.

References

• 800-53|CM-7a.
• CAT|III
• CCI|CCI-000381
• Rule-ID|SV-213135r766559_rule
• STIG-ID|AADC-CN-001305
• STIG-Legacy|SV-94101
• STIG-Legacy|V-79395
• Vuln-ID|V-213135

Source

• Tenable.com/audits