SV-221592r615937: Chrome Cleanup must be disabled. | Google Chrome Current Windows Security Technical Implementation Guide

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Assessment Title

Rule Text

Chrome Cleanup must be disabled.

Description

Discussion Text

If set to “False”, prevents Chrome Cleanup from scanning the system for unwanted software and performing cleanups. Manually triggering Chrome Cleanup from chrome://settings/cleanup is disabled. If set to “True” or unset, Chrome Cleanup periodically scans the system for unwanted software and should any be found, will ask the user if they wish to remove it. Manually triggering Chrome Cleanup from chrome://settings is enabled. This policy is available only on Windows instances that are joined to a Microsoft Active Directory domain.

How this relates to the STIG checklist: STIG vs SCAP benchmark.

IA Controls

NIST SP 800-53

Not mappedCCI-000169SV-96305V-81591

References

DPMS Target Google Chrome Current Windows DISA DPMS Target Google Chrome Current Windows 4081

Checks

DISA STIG (Manual Reference)

Universal method: 
 1. In the omnibox (address bar) type chrome://policy
 2. If "ChromeCleanupEnabled" is not displayed under the "Policy Name" column or it is not set to "False", this is a finding.
Windows method:
 1. Start regedit
 2. Navigate to HKLM\Software\Policies\Google\Chrome\
 3. If the "ChromeCleanupEnabled" value name does not exist or its value data is not set to "0", this is a finding.

SCC Automation Reference

The reconstructed evaluation script behind this rule's OVAL check(s) — every module a compound check combines, with this rule's own concrete values and DISA's SCC tool's real per-module mechanism curated from static teardown of SCC releases.

# Windows PowerShell
# Reconstructed from oval:mil.disa.stig.chrome:def:680060
# Chrome Cleanup must be disabled.
# Per-module read mechanism curated from static teardown of DISA's SCC tool
# (SCAP Compliance Checker) -- see the SCC Automation Reference above.

# Chrome Cleanup must be disabled.
# registry_object (registry_test)
function test_1 {
  return (((@{String='reg_sz';ExpandString='reg_expand_sz';Binary='reg_binary';DWord='reg_dword';MultiString='reg_multi_sz';QWord='reg_qword';None='reg_none'}[(Get-Item -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\Google\Chrome').GetValueKind('ChromeCleanupEnabled').ToString()]) -eq 'reg_dword') -and (((Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\Google\Chrome' -Name 'ChromeCleanupEnabled' -ErrorAction SilentlyContinue) | Select-Object -ExpandProperty 'ChromeCleanupEnabled') -eq '0'))
}

if (test_1) {
  Write-Output "PASS"
} else {
  Write-Output "FAIL"
}

Assessment Script Powered by AISyntax-verified

A standalone PowerShell script to assess this control automatically. Review before running it in your environment.

Syntax-checked as valid PowerShell. Not executed here — running it for real needs the actual google_chrome_windows target this check assesses.

# OVAL Definition: oval:mil.disa.stig.chrome:def:680060
if (!(Test-Path 'HKLM:\Software\Policies\Google\Chrome\ChromeCleanupEnabled' -ErrorAction SilentlyContinue) -or ((Get-ItemProperty -Path 'HKLM:\Software\Policies\Google\Chrome' -Name 'ChromeCleanupEnabled' -ErrorLevel SilentlyContinue).ChromeCleanupEnabled -eq 0)) { Write-Output "PASS"; Exit 0 } else { Write-Output "FAIL"; Exit 1 }

Remediation

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: Enables Chrome Cleanup on Windows
Policy State: Disabled
Policy Value: N/A