Adobe Reader DC must block Flash Content.

From Adobe Acrobat Reader DC Classic Track Security Technical Implementation Guide

Part of SRG-APP-000112

Associated with: CCI-001166 CCI-001169 CCI-001170 CCI-001662 CCI-001695

SV-80265r2_rule Adobe Reader DC must block Flash Content.

Vulnerability discussion

Flash content is commonly hosted on a web page, but it can also be embedded in PDF and other documents. Flash could be used to surreptitious install malware on the end-users computer.Flash Content restricts Adobe Reader DC not to play Flash content within a PDF.Satisfies: SRG-APP-000112, SRG-APP-000206, SRG-APP-000207, SRG-APP-000209, SRG-APP-000210

Check content

Verify the following registry configuration: Utilizing the Registry Editor, navigate to the following: HKEY_LOCAL_MACHINE\Software\Policies\Adobe\Acrobat Reader\2015\FeatureLockDown Value Name: bEnableFlash Type: REG_DWORD Value: 0 If the value for bEnableFlash is not set to “0” and Type configured to REG_DWORD or does not exist, then this is a finding. Admin Template path: Computer Configuration > Administrative Templates > Adobe Reader DC Classic > Preferences > 'Enable Flash' must be set to 'Disabled'. This policy setting requires the installation of the AcrobatDCClassic custom templates included with the STIG package. "AcrobatDCClassic.admx" and "AcrobatDCClassic.adml" must be copied to the \Windows\PolicyDefinitions and \Windows\PolicyDefinitions\en-US directories respectively.

Fix text

Configure the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \Software\Policies\Adobe\Acrobat Reader\2015\FeatureLockDown Value Name: bEnableFlash Type: REG_DWORD Value: 0 Configure the policy value for Computer Configuration > Administrative Templates > Adobe Reader DC Classic > Preferences > 'Enable Flash' to 'Disabled'. This policy setting requires the installation of the AcrobatDCClassic custom templates included with the STIG package. "AcrobatDCClassic.admx" and "AcrobatDCClassic.adml" must be copied to the \Windows\PolicyDefinitions and \Windows\PolicyDefinitions\en-US directories respectively.

Pro Tips

Lavender hyperlinks in small type off to the right (of CSS class id, if you view the page source) point to globally unique URIs for each document and item. Copy the link location and paste anywhere you need to talk unambiguously about these things.

You can obtain data about documents and items in other formats. Simply provide an HTTP header Accept: text/turtle or Accept: application/rdf+xml.

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