STIGQter: STIG Summary: Adobe Acrobat Professional DC Continuous Security Technical Implementation Guide Version: 1 Release: 2 Benchmark Date: 01 Jul 2019:

Adobe Acrobat Pro DC Continuous Default Handler changes must be disabled.

DISA Rule

SV-94091r1_rule

Vulnerability Number

V-79385

Group Title

SRG-APP-000133

Rule Version

AADC-CN-001280

Severity

CAT III

CCI(s)

• CCI-001499 - The organization limits privileges to change software resident within software libraries.

Weight

10

Fix Recommendation

Configure the following registry value:

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

Value Name: bDisablePDFHandlerSwitching
Type: REG_DWORD
Value: 1

Configure the policy value for Computer Configuration > Administrative Template > Adobe Acrobat Pro DC Continuous > Preferences > General > 'Disable PDF handler switching' to 'Enabled'.

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

Check Contents

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: 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.

GUI path: Edit > Preferences > General > Verify the 'Select As Default PDF Handler' option is greyed out (locked). If the option is not greyed out, this is a finding.

Admin Template path: Computer Configuration > Administrative Template > Adobe Acrobat Pro DC Continuous > Preferences > General > 'Disable PDF handler switching' must be set to 'Enabled'.

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

Vulnerability Number

V-79385

Documentable

False

Rule Version

AADC-CN-001280

Severity Override Guidance

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: 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.

GUI path: Edit > Preferences > General > Verify the 'Select As Default PDF Handler' option is greyed out (locked). If the option is not greyed out, this is a finding.

Admin Template path: Computer Configuration > Administrative Template > Adobe Acrobat Pro DC Continuous > Preferences > General > 'Disable PDF handler switching' must be set to 'Enabled'.

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

Check Content Reference

M

Target Key

3371

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