STIGUI
V-213122CAT II — Medium severitySV-213122r766526_rule

Adobe Acrobat Pro DC Continuous must be configured to block Flash Content.

Rule version AADC-CN-000290 · STIG v2 · 2021-06-22

Discussion

Flash has a long history of vulnerabilities. Although Flash is no longer provided with Acrobat, if the system has Flash installed, a malicious PDF could execute code on the system. Configuring Flash to run from a privileged location limits the execution capability of untrusted Flash content that may be embedded in the PDF.

Check

Verify the following registry configuration:

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

Value Name: bEnableFlash Type: REG_DWORD Value: 0

If the value for bEnableFlash is not set to “0” and Type is not configured to REG_DWORD or does not exist, this is a finding.

Admin Template path: Computer Configuration > Administrative Templates > Adobe Acrobat Pro DC Continuous > Preferences > 'Enable Flash' must be set to 'Disabled'.

Fix

Configure the following registry value:

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

Value Name: bEnableFlash Type: REG_DWORD Value: 0

Configure the policy value for Computer Configuration > Administrative Templates > Adobe Acrobat Pro DC Continuous > Preferences > 'Enable Flash' to 'Disabled'.

Identifiers

Group ID
V-213122
Group title
SRG-APP-000141
Rule ID
SV-213122r766526_rule
Check ID
C-14359r766524_chk
Fix ID
F-14357r766525_fix