STIGhubSTIGhub
STIGsSearchCompareAbout

STIGhub

A free tool to search and browse the entire DISA STIG library. Saves up to 75% in security compliance research time.

Navigation

  • Browse STIGs
  • Search
  • Compare Versions

Resources

  • About
  • VPAT
  • DISA STIG Library
Powered by Pylon
© 2026 Beacon Cloud Solutions, Inc. All rights reserved.
← Back to Adobe Acrobat Reader DC Continuous Track Security Technical Implementation Guide

V-213173

CAT II (Medium)

Adobe Reader DC must block access to Unknown Websites.

Rule ID

SV-213173r395811_rule

STIG

Adobe Acrobat Reader DC Continuous Track Security Technical Implementation Guide

Version

V2R1

CCIs

CCI-001166, CCI-001169, CCI-001170, CCI-001662, CCI-001695

Discussion

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

Check Content

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

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