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Adobe Acrobat Pro XI Default Handler changes must be disabled.


Overview

Finding ID Version Rule ID IA Controls Severity
V-75293 ADBP-XI-001280 SV-89973r1_rule Low
Description
Acrobat Pro allows users to change the version of Acrobat Pro that is used to read PDF files. This is a risk if multiple versions of Acrobat are installed on the system and the other version has dissimilar security configurations or known vulnerabilities. When the Default PDF Handler is disabled, the end users will not be able to change the default PDF viewer.
STIG Date
Adobe Acrobat Pro XI Security Technical Implementation Guide 2018-01-03

Details

Check Text ( C-75077r1_chk )
Verify the following registry configuration:

Using the Registry Editor, navigate to the following: HKEY_LOCAL_MACHINE\Software\Policies\Adobe\Adobe Acrobat\11.0\FeatureLockDown

Value Name: bDisablePDFHandlerSwitching
Type: REG_DWORD
Value: 1

If the value for bDisablePDFHandlerSwitching is not set to “1” and Type is not configured to REG_DWORD or does not exist, this is a finding.
Fix Text (F-81909r2_fix)
Configure the following registry value:

Registry Hive:
HKEY_LOCAL_MACHINE
Registry Path:
\Software\Policies\Adobe\Adobe Acrobat\11.0\FeatureLockDown

Value Name: bDisablePDFHandlerSwitching
Type: REG_DWORD
Value: 1