Adobe Reader DC must disable Service Upgrades.

Severity
Group ID
Group Title
Version
Rule ID
Date
STIG Version
lowV-213187SRG-APP-000141ARDC-CN-000120SV-213187r395853_rule2021-06-222
Description
By default, Adobe online services are tightly integrated into Adobe Reader DC. Disabling Service Upgrades disables both updates to the product's web-plugin components as well as all services without exception, including any online sign-in screen.
ℹ️ Check
Verify the following registry configuration: Note: The Key Name "cServices" 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\cServices Value Name: bUpdater Type: REG_DWORD Value: 0 If the value for bUpdater is not set to “0” and Type configured to REG_DWORD or does not exist, then this is a finding.
✔️ Fix
Configure the following registry value: Note: The Key Name "cServices" 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\cServices Value Name: bUpdater Type: REG_DWORD Value: 0