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Adobe Reader DC must block access to Unknown Websites.


Overview

Finding ID Version Rule ID IA Controls Severity
V-64929 ARDC-CN-000030 SV-79419r1_rule Medium
Description
Because Internet access is a potential security risk, clicking any unknown website link to the Internet poses a potential security risk. Malicious websites can transfer harmful content or silently gather data. Satisfies: SRG-APP-000112, SRG-APP-000206, SRG-APP-000207, SRG-APP-000209, SRG-APP-000210
STIG Date
Adobe Acrobat Reader DC Continuous Track Security Technical Implementation Guide 2017-12-06

Details

Check Text ( C-65587r2_chk )
Verify the following registry configuration:

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

Value Name: iUnknownURLPerms
Type: REG_DWORD
Value: 3

If the value for iUnknownURLPerms is not set to “3” and Type configured to REG_DWORD or does not exist, then this is a finding.
Fix Text (F-70869r2_fix)
Configure the following registry value:

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

Value Name: iUnknownURLPerms
Type: REG_DWORD
Value: 3