SV-35928r3: Unauthorized accounts must not have the Allow log on through Remote Desktop Services user right. | Windows 7 Security Technical Implementation Guide

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Assessment Title

Rule Text

Unauthorized accounts must not have the Allow log on through Remote Desktop Services user right.

Description

Discussion Text

Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. Accounts with the "Allow log on through Remote Desktop Services" user right can access a system through Remote Desktop.

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

IA Controls

NIST SP 800-53

Not mappedCCI-000213CCE-9274-2

Additional Details

Responsibility

System Administrator

References

DPMS Target Windows 7 DISA DPMS Target Windows 7 1712

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:3668
# Unauthorized accounts must not have the Allow log on through Remote Desktop Services user right.
# Per-module read mechanism curated from static teardown of DISA's SCC tool
# (SCAP Compliance Checker) -- see the SCC Automation Reference above.

# Allow log on through Remote Desktop Services - 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 $__tmp -Pattern '^SeRemoteInteractiveLogonRight\s*=\s*(.+)$'; 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 windows_7 target this check assesses.

# OVAL Definition: oval:mil.disa.fso.windows:def:3668
$RDPRights = Get-CimInstance -ClassName Win32_LocalGroupMembership -Filter "GroupComponent like 'S-1-5-32-544%'"
if ($RDPRights -eq $null -or ($RDPRights.Count -eq 0 -and ($RDPRights | Where-Object { $_.GroupComponent -like "*S-1-5-32-*" }).Count -eq 0)) { Write-Output "PASS"; Exit 0 } 
Write-Output "FAIL"; Exit 1

Remediation

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Allow log on through Remote Desktop Services" to be defined but containing no entries (blank).

				Administrators may be granted this user right if Remote Desktop Services is necessary for remote administration.  Restricted Admin mode must be used.  This must be document with the ISSO.
				See Microsoft article KB2871997 for patches required to add this function to systems prior to Windows 8.1.

				Restricted Admin mode for Remote Desktop Connections can be implemented for each session using a command line switch to start the Remote Desktop Client or through a group policy to enable it for all sessions.

				The command line to do this is "mstsc /restrictedadmin".

				To enable this with group policy, configure the policy value for Computer Configuration >> Administrative Templates >> System >> Credentials Delegation >> "Restrict delegation of credentials to remote servers" to "Enabled".