SV-245539r960864: Session only based cookies must be enabled. | Google Chrome Current Windows STIG SCAP Benchmark

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Assessment Title

Rule Text

Session only based cookies must be enabled.

Description

Discussion Text

Cookies must only be allowed per session and only for approved URLs as permanently stored cookies can be used for malicious intent. Approved URLs may be allowlisted via the CookiesAllowedForUrls policy setting, but is not a requirement.

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

IA Controls

NIST SP 800-53

Not mappedCCI-000166

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 the policy "DefaultCookiesSetting" is not shown or is not set to "4", this is a finding.

Windows method:
1. Start regedit.
2. Navigate to HKLM\Software\Policies\Google\Chrome\DefaultCookiesSetting.
3. If this key does not exist, or is not set to "4", 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:240045
# Session only based cookies must be enabled.
# Per-module read mechanism curated from static teardown of DISA's SCC tool
# (SCAP Compliance Checker) -- see the SCC Automation Reference above.

# Session only based cookies are enabled
# 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('DefaultCookiesSetting').ToString()]) -eq 'reg_dword') -and (((Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Google\Chrome' -Name 'DefaultCookiesSetting' -ErrorAction SilentlyContinue) | Select-Object -ExpandProperty 'DefaultCookiesSetting') -eq 4))
}

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:240045
$registryPath = "HKLM:\SOFTWARE\Policies\Google\Chrome"
$regKey = "DefaultCookiesSetting"
$regValue = 4
if (Test-Path $registryPath -and (Get-ItemProperty -Path $registryPath -Name $regKey -ErrorAction SilentlyContinue).$regKey -eq $regValue) { 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\Content Settings.
- Policy Name: Default cookies setting
- Policy State: Enabled
- Policy Value: Keep cookies for the duration of the session