SV-220956r958726: The Access Credential Manager as a trusted caller user right must not be assigned to any groups or accounts. | Microsoft Windows 10 STIG SCAP Benchmark

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Assessment Title

Rule Text

The Access Credential Manager as a trusted caller user right must not be assigned to any groups or accounts.

Description

Discussion Text

Inappropriate granting of user rights can provide system, administrative, and other high level capabilities. Accounts with the "Access Credential Manager as a trusted caller" user right may be able to retrieve the credentials of other accounts from Credential Manager.

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

IA Controls

NIST SP 800-53

Not mappedCCI-002235V-63843SV-78333

References

DPMS Target Microsoft Windows 10 DISA DPMS Target Microsoft Windows 10 4072

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.windows10:def:220956
# The Access Credential Manager as a trusted caller user right must not be assigned to any groups or accounts.
# Per-module read mechanism curated from static teardown of DISA's SCC tool
# (SCAP Compliance Checker) -- see the SCC Automation Reference above.

# Access Credential Manager as a trusted caller - None
# accesstoken_object (accesstoken_test)
function test_1 {
  return (($__tmp = "$env:TEMP\scc_userrights_$([guid]::NewGuid().Guid).cfg"; secedit /export /cfg $__tmp /areas USER_RIGHTS /quiet | Out-Null; $__m = Select-String -Path $__tmp -Pattern '^SeTrustedCredManAccessPrivilege\s*=\s*(.+)$'; Remove-Item $__tmp -ErrorAction SilentlyContinue; if ($__m -and $__m.Matches[0].Groups[1].Value.Trim().Length -gt 0) { '1' } else { '0' }) -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 ms_windows_10 target this check assesses.

# OVAL Definition: oval:mil.disa.stig.windows10:def:220956
$policy = Get-ItemProperty -Path 'HKLM:\System\CurrentControlSet\Services\PolEdit\Microsoft\Windows\SecEdit\Policy\' -Name 'Access Credential Manager as a trusted caller'
if ($policy -eq $null) { exit 0 }
if ($policy.'Access Credential Manager as a trusted caller' -eq 0) { exit 0 }
exit 1

Remediation

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Access Credential Manager as a trusted caller" to be defined but containing no entries (blank).