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 periodic downloading of Adobe European certificates must be disabled.

DISA Rule

SV-94083r1_rule

Vulnerability Number

V-79377

Group Title

SRG-APP-000427

Rule Version

AADC-CN-000990

Severity

CAT III

CCI(s)

• CCI-002470 - The information system only allows the use of organization-defined certificate authorities for verification of the establishment of protected sessions.

Weight

10

Fix Recommendation

Configure the following registry value:

Note: The Key Name "cEUTLDownload" is not created by default in the Acrobat Pro DC install and must be created.

Registry Hive:
HKEY_CURRENT_USER
Registry Path:
\Software\Adobe\Adobe Acrobat\DC\Security\cDigSig\cEUTLDownload

Value Name: bLoadSettingsFromURL
Type: REG_DWORD
Value: 0

Configure the policy value for User Configuration > Administrative Templates > Adobe Acrobat Pro DC Continuous > Preferences > Trust Manager > 'Load trusted certificates from an Adobe EUTL server' to 'Disabled'.

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:

Note: The Key Name "cEUTLDownload" is not created by default in the Acrobat Pro DC install and must be created.

Using the Registry Editor, navigate to the following: HKEY_CURRENT_USER\Software\Adobe\Adobe Acrobat\DC\Security\cDigSig\cEUTLDownload

Value Name: bLoadSettingsFromURL
Type: REG_DWORD
Value: 0

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

GUI path: Edit > Preferences > Trust Manager > In the 'Automatic European Union Trusted Lists (EUTL) updates' section > Verify the 'Load trusted certificates from an Adobe EUTL server' is not checked. If the box is checked, this is a finding.

Admin Template path: User Configuration > Administrative Templates > Adobe Acrobat Pro DC Continuous > Preferences > Trust Manager > 'Load trusted certificates from an Adobe EUTL server' must be set to 'Disabled'.

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-79377

Documentable

False

Rule Version

AADC-CN-000990

Severity Override Guidance

Verify the following registry configuration:

Note: The Key Name "cEUTLDownload" is not created by default in the Acrobat Pro DC install and must be created.

Using the Registry Editor, navigate to the following: HKEY_CURRENT_USER\Software\Adobe\Adobe Acrobat\DC\Security\cDigSig\cEUTLDownload

Value Name: bLoadSettingsFromURL
Type: REG_DWORD
Value: 0

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

GUI path: Edit > Preferences > Trust Manager > In the 'Automatic European Union Trusted Lists (EUTL) updates' section > Verify the 'Load trusted certificates from an Adobe EUTL server' is not checked. If the box is checked, this is a finding.

Admin Template path: User Configuration > Administrative Templates > Adobe Acrobat Pro DC Continuous > Preferences > Trust Manager > 'Load trusted certificates from an Adobe EUTL server' must be set to 'Disabled'.

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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