SV-16651r2: Indexing of mail items in Exchange folders when Outlook is running in uncached mode must be turned off. | Windows Vista Security Technical Implementation Guide

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Assessment Title

Rule Text

Indexing of mail items in Exchange folders when Outlook is running in uncached mode must be turned off.

Description

Discussion Text

Indexing of encrypted items may expose sensitive data. This setting prevents mail items in a Microsoft Exchange folder from being indexed when Outlook is running in uncached mode.

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

IA Controls

NIST SP 800-53

Not mappedCCI-000381CCE-3143-5

Additional Details

Responsibility

System Administrator

References

DPMS Target Windows Vista DISA DPMS Target Windows Vista 1029

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.fso.windows:def:557
# Indexing of mail items in Exchange folders when Outlook is running in uncached mode must be turned off.
# Per-module read mechanism curated from static teardown of DISA's SCC tool
# (SCAP Compliance Checker) -- see the SCC Automation Reference above.

# registry_object (registry_test)
function test_1 {
  return (((Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\Windows Search' -Name 'PreventIndexingUncachedExchangeFolders' -ErrorAction SilentlyContinue) | Select-Object -ExpandProperty 'PreventIndexingUncachedExchangeFolders') -eq 1)
}
# registry_object (registry_test)
function test_2 {
  return (-not ($null -ne (Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\Windows Search' -Name 'PreventIndexingUncachedExchangeFolders')))
}
# registry_object (registry_test)
function test_3 {
  return ($null -ne (Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\Windows Search' -Name 'PreventIndexingUncachedExchangeFolders'))
}
# registry_object (registry_test)
function test_4 {
  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\Microsoft\Windows\Windows Search').GetValueKind('PreventIndexingUncachedExchangeFolders').ToString()]) -eq 'reg_dword')
}
# registry_object (registry_test)
function test_5 {
  return (-not ($null -ne (Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\Windows Search' -Name 'PreventIndexingUncachedExchangeFolders')))
}

if (((test_1 -or test_2) -and test_3 -and (test_4 -or test_5))) {
  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 windows_vista target this check assesses.

# oval:mil.disa.fso.windows:def:557
if (-not (Get-Package -Name Microsoft.Office.Client -ErrorAction SilentlyContinue)) {exit 0} 
if (Test-Path -Path "HKLM:\Software\Policies\Microsoft\Windows\Windows Search\PreventIndexingUncachedExchangeFolders" -and (Get-ItemProperty -Path "HKLM:\Software\Policies\Microsoft\Windows\Windows Search\PreventIndexingUncachedExchangeFolders").value -eq 1) {exit 1} 
if (Test-Path -Path "HKLM:\Software\Policies\Microsoft\Windows\Windows Search\PreventIndexingUncachedExchangeFolders") {exit 0} 
exit 1

Remediation

If Outlook is not installed on the system, this is NA.
If Outlook is installed on the system, configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Search -> "Enable indexing uncached Exchange folders" to "Disabled".