SV-245538r961470: Use of the QUIC protocol must be disabled. | Google Chrome Current Windows STIG SCAP Benchmark

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Assessment Title

Rule Text

Use of the QUIC protocol must be disabled.

Description

Discussion Text

QUIC is used by more than half of all connections from the Chrome web browser to Google's servers, and this activity is undesirable in the DoD. Setting the policy to Enabled or leaving it unset allows the use of QUIC protocol in Google Chrome. Setting the policy to Disabled disallows the use of QUIC protocol.

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

IA Controls

NIST SP 800-53

Not mappedCCI-001762

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 QuicAllowed is not displayed under the Policy Name column or it is not set to False under the Policy Value column, this is a finding.

Windows method:
1. Start regedit.
2. Navigate to HKLM\Software\Policies\Google\Chrome\.
3. If the QuicAllowed 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:138
# Use of the QUIC protocol 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.

# Use of the QUIC protocol is 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('QuicAllowed').ToString()]) -eq 'reg_dword') -and (((Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Google\Chrome' -Name 'QuicAllowed' -ErrorAction SilentlyContinue) | Select-Object -ExpandProperty 'QuicAllowed') -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 target this check assesses.

# OVAL definition: oval:mil.disa.stig.chrome:def:138
$compliant = Test-Path -Path "HKLM:\SOFTWARE\Policies\Google\Chrome\QuicAllowed" -and (Get-ItemProperty -Path "HKLM:\SOFTWARE\Policies\Google\Chrome\QuicAllowed" -Name "QuicAllowed" -ErrorAction SilentlyContinue).QuicAllowed -eq 0
if ($compliant) { 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 Chrome.
- Policy Name: Allow QUIC protocol
- Policy State: Disabled
- Policy Value: N/A