Ensure 'Encryption Oracle Remediation' is set to 'Enabled: Force Updated Clients'

VisokaNivo 1Automatskawindows

Opis

Some versions of the CredSSP protocol that is used by some applications (such as Remote Desktop Connection) are vulnerable to an encryption oracle attack against the client. This policy controls compatibility with vulnerable clients and servers and allows you to set the level of protection desired for the encryption oracle vulnerability. The recommended state for this setting is: Enabled: Force Updated Clients.

Kako se proverava

Metod provere: Windows registar

registry

$bad = @(); $v = (Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\CredSSP\Parameters' -Name 'AllowEncryptionOracle' -ErrorAction SilentlyContinue).'AllowEncryptionOracle'; if (-not ($null -ne $v -and @(0) -contains [int64]$v)) { $bad += 'AllowEncryptionOracle=' + $v }; if ($bad.Count -eq 0) { 'compliant' } else { 'non-compliant: ' + ($bad -join ', ') }

Očekivani izlaz: compliant

Kako se ispravlja

Metod ispravke: Komanda ljuske

shell

if (-not (Test-Path 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\CredSSP\Parameters')) { New-Item -Path 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\CredSSP\Parameters' -Force | Out-Null }; New-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\CredSSP\Parameters' -Name 'AllowEncryptionOracle' -Value 0 -PropertyType DWord -Force | Out-Null

Svojstva

Operativni sistemi: windows-10
Oznake: cis-convertedregistrywindows
Referenca: CIS Microsoft Windows 10 Enterprise Benchmark v4.0.0 - 18.9.4.1

Proverite ovaj računar

Pokrenite ovo na računaru za koji imate dozvolu za proveru. Skeniranje radi u režimu samo za čitanje.

shell

tmaegis scan --target windows