STIGQter: STIG Summary: Google Chrome Current Windows Security Technical Implementation Guide Version: 2 Release: 11 Benchmark Date: 02 Jul 2025:

The URL protocol schema javascript must be disabled.

DISA Rule

SV-221572r960963_rule

Vulnerability Number

V-221572

Group Title

SRG-APP-000141

Rule Version

DTBC-0021

Severity

CAT II

CCI(s)

• CCI-000381 - Configure the system to provide only organization-defined mission essential capabilities.

Weight

10

Fix Recommendation

Windows group policy:
1. Open the group policy editor tool with gpedit.msc.
2. Navigate to Policy Path: Computer Configuration\Administrative Templates\Google\Google Chrome\
Policy Name: Block access to a list of URLs.
- Policy State: Enabled
- Policy Value 1: javascript://*

Check Contents

Universal method:
1. In the omnibox (address bar) type chrome://policy.
2. If URLBlocklist is not displayed under the Policy Name column or it is not set to javascript://* under the Policy Value column, this is a finding.

Windows method:
1. Start regedit.
2. Navigate to HKLM\Software\Policies\Google\Chrome\URLBlocklist.
3. If the URLBlocklist key does not exist, or the does not contain entries 1 set to javascript://*, this is a finding.

Vulnerability Number

V-221572

Documentable

False

Rule Version

DTBC-0021

Severity Override Guidance

Universal method:
1. In the omnibox (address bar) type chrome://policy.
2. If URLBlocklist is not displayed under the Policy Name column or it is not set to javascript://* under the Policy Value column, this is a finding.

Windows method:
1. Start regedit.
2. Navigate to HKLM\Software\Policies\Google\Chrome\URLBlocklist.
3. If the URLBlocklist key does not exist, or the does not contain entries 1 set to javascript://*, this is a finding.

Check Content Reference

M

Target Key

4081