public/psf-policies.ps1
|
function Compare-FalconPreventionPhase { <# .SYNOPSIS Compare a Falcon Prevention Policy against recommended implementation phases .DESCRIPTION Requires 'Prevention Policies: Read'. .PARAMETER Id Policy identifier .LINK https://github.com/crowdstrike/psfalcon/wiki/Compare-FalconPreventionPhase #> [CmdletBinding(SupportsShouldProcess)] [OutputType([PSCustomObject[]])] param( [Parameter(Mandatory,ValueFromPipelineByPropertyName,ValueFromPipeline,Position=1)] [ValidatePattern('^[a-fA-F0-9]{32}$')] [string]$Id ) begin { # Define allowed OSes and path to json settings [string[]]$AllowedOS = 'Linux','Mac','Windows' $List = [System.Collections.Generic.List[string]]@() } process { if ($Id) { @($Id).foreach{ $List.Add($_) }}} end { if ($List -and $PSCmdlet.ShouldProcess('Compare-FalconPreventionPhase','Get-FalconPreventionPolicy')) { # Collect detailed policy information for unique identifiers $PolicyList = Get-FalconPreventionPolicy -Id ($List | Select-Object -Unique) -EA 0 | Select-Object id, name,platform_name,prevention_settings | Sort-Object platform_name @($List).Where({ $PolicyList.id -notcontains $_ }).foreach{ # Generate error when 'id' values were not found Write-Error "'$_' was not found." } if ($PolicyList) { [string]$Ineligible = '[Compare-FalconPreventionPolicy] {0} is ineligible. [{1}]' if ($PolicyList.platform_name) { # Import json settings for allowed 'platform_name' values $Compare = @{} [string]$JsonPath = Join-Path (Show-FalconModule).ModulePath policy $PolicyList.platform_name | Select-Object -Unique | Where-Object { $AllowedOS -contains $_ } | ForEach-Object { [string]$FilePath = (Join-Path $JsonPath "$($_.ToLower()).json") if (Test-Path $FilePath) { $JsonValue = try { Get-Content $FilePath | ConvertFrom-Json } catch {} if ($JsonValue) { $Compare[$_] = $JsonValue } else { Write-Error "Failed to import $_ comparison template." } } else { Write-Error "Failed to locate $_ comparison template. [$FilePath]" } } } if (!$Compare.Values) { throw "No comparison templates were successfully imported." } else { foreach ($Policy in $PolicyList) { if ($AllowedOS -notcontains $Policy.platform_name) { $PSCmdlet.WriteWarning(($Ineligible -f $Policy.id,$Policy.platform_name)) } elseif (!$Policy.prevention_settings) { $PSCmdlet.WriteWarning(($Ineligible -f $Policy.id,'Missing prevention_settings')) } elseif ($Compare.($Policy.platform_name)) { # Filter to settings for eligible policies [PSCustomObject[]]$Ref = $Compare.($Policy.platform_name) foreach ($Category in $Policy.prevention_settings) { foreach ($Setting in $Category.settings) { $Output = [PSCustomObject]@{ policy_id = $Policy.id policy_name = $Policy.name platform_name = $Policy.platform_name category = $Category.name id = $Setting.id name = $Setting.name value = if ($Setting.type -eq 'toggle') { $Setting.value.enabled } elseif ($Setting.type -eq 'mlslider') { $Setting.value.PSObject.Properties.Value -join ':' } } foreach ($Phase in $Compare.($Policy.platform_name).phase) { # Include id and value for each phase ($Ref | Where-Object { $_.phase -eq $Phase }).prevention_settings | Where-Object { $_.id -eq $Setting.id } | ForEach-Object { $Value = if ($_.type -eq 'toggle') { $_.value.enabled } elseif ($_.type -eq 'mlslider') { $_.value.PSObject.Properties.Value -join ':' } Set-Property $Output ('phase',$Phase -join '_') $Value } } Set-Property $Output 'description' $Setting.description $Output } } } } } } } } } function Copy-FalconDeviceControlPolicy { <# .SYNOPSIS Duplicate a Falcon Device Control policy .DESCRIPTION The specified Falcon Device Control policy will be duplicated without assigned Host Groups. If a policy description is not supplied, the description from the existing policy will be used. Requires 'Device control policies: Read', 'Device control policies: Write'. .PARAMETER Name Name for the policy that will be created .PARAMETER Description Description for the policy that will be created .PARAMETER Id Identifier of policy to be copied .LINK https://github.com/crowdstrike/psfalcon/wiki/Copy-FalconDeviceControlPolicy #> [CmdletBinding(SupportsShouldProcess)] param( [Parameter(Mandatory,Position=1)] [string]$Name, [Parameter(Position=2)] [string]$Description, [Parameter(Mandatory,ValueFromPipelineByPropertyName,ValueFromPipeline,Position=3)] [ValidatePattern('^[a-fA-F0-9]{32}$')] [string]$Id ) process { if ($PSCmdlet.ShouldProcess('Copy-FalconDeviceControlPolicy','Get-FalconDeviceControlPolicy')) { try { $Policy = Get-FalconDeviceControlPolicy -Id $Id if ($Policy) { @('Name','Description').foreach{ if ($PSBoundParameters.$_) { $Policy.$_ = $PSBoundParameters.$_ } } $Clone = $Policy | New-FalconDeviceControlPolicy if ($Clone.id) { $Clone.settings = $Policy.settings $Clone = $Clone | Edit-FalconDeviceControlPolicy if ($Clone.enabled -eq $false -and $Policy.enabled -eq $true) { $Enable = $Clone.id | Invoke-FalconDeviceControlPolicyAction enable if ($Enable) { $Enable } else { $Clone.enabled = $true $Clone } } } } } catch { throw $_ } } } } function Copy-FalconFirewallPolicy { <# .SYNOPSIS Duplicate a Falcon Firewall Management policy .DESCRIPTION The specified Falcon Firewall Management policy will be duplicated without assigned Host Groups. If a policy description is not supplied, the description from the existing policy will be used. Requires 'Firewall management: Read', 'Firewall management: Write'. .PARAMETER Name Name for the policy that will be created .PARAMETER Description Description for the policy that will be created .PARAMETER Id Identifier of policy to be copied .LINK https://github.com/crowdstrike/psfalcon/wiki/Copy-FalconFirewallPolicy #> [CmdletBinding(SupportsShouldProcess)] param( [Parameter(Mandatory,Position=1)] [string]$Name, [Parameter(Position=2)] [string]$Description, [Parameter(Mandatory,ValueFromPipelineByPropertyName,ValueFromPipeline,Position=3)] [ValidatePattern('^[a-fA-F0-9]{32}$')] [string]$Id ) process { if ($PSCmdlet.ShouldProcess('Copy-FalconFirewallPolicy','Get-FalconFirewallPolicy')) { try { $Policy = Get-FalconFirewallPolicy -Id $Id -Include settings if ($Policy) { @('Name','Description').foreach{ if ($PSBoundParameters.$_) { $Policy.$_ = $PSBoundParameters.$_ } } if ($Policy) { $Clone = $Policy | New-FalconFirewallPolicy if ($Clone.id) { if ($Policy.settings) { $Policy.settings.policy_id = $Clone.id $Settings = $Policy.settings | Edit-FalconFirewallSetting if ($Settings) { $Settings = Get-FalconFirewallSetting -Id $Clone.id } } if ($Clone.enabled -eq $false -and $Policy.enabled -eq $true) { $Enable = $Clone.id | Invoke-FalconFirewallPolicyAction enable if ($Enable) { Set-Property $Enable settings $Settings $Enable } else { $Clone.enabled = $true Set-Property $Clone settings $Settings $Clone } } } } } } catch { throw $_ } } } } function Copy-FalconPreventionPolicy { <# .SYNOPSIS Duplicate a Prevention policy .DESCRIPTION The specified Prevention policy will be duplicated without assigned Host Groups. If a policy description is not supplied, the description from the existing policy will be used. Requires 'Prevention Policies: Read', 'Prevention Policies: Write'. .PARAMETER Name Name for the policy that will be created .PARAMETER Description Description for the policy that will be created .PARAMETER Id Identifier of policy to be copied .LINK https://github.com/crowdstrike/psfalcon/wiki/Copy-FalconPreventionPolicy #> [CmdletBinding(SupportsShouldProcess)] param( [Parameter(Mandatory,Position=1)] [string]$Name, [Parameter(Position=2)] [string]$Description, [Parameter(Mandatory,ValueFromPipelineByPropertyName,ValueFromPipeline,Position=3)] [ValidatePattern('^[a-fA-F0-9]{32}$')] [string]$Id ) process { if ($PSCmdlet.ShouldProcess('Copy-FalconPreventionPolicy','Get-FalconPreventionPolicy')) { try { $Policy = Get-FalconPreventionPolicy -Id $Id if ($Policy) { @('Name','Description').foreach{ if ($PSBoundParameters.$_) { $Policy.$_ = $PSBoundParameters.$_ } } $Clone = $Policy | New-FalconPreventionPolicy if ($Clone.id) { $Clone.prevention_settings = $Policy.prevention_settings $Clone = $Clone | Edit-FalconPreventionPolicy if ($Clone.enabled -eq $false -and $Policy.enabled -eq $true) { $Enable = $Clone.id | Invoke-FalconPreventionPolicyAction enable if ($Enable) { $Enable } else { $Clone.enabled = $true $Clone } } } } } catch { throw $_ } } } } function Copy-FalconResponsePolicy { <# .SYNOPSIS Duplicate a Real-time Response policy .DESCRIPTION The specified Real-time Response policy will be duplicated without assigned Host Groups. If a policy description is not supplied, the description from the existing policy will be used. Requires 'Response policies: Read', 'Response policies: Write'. .PARAMETER Name Name for the policy that will be created .PARAMETER Description Description for the policy that will be created .PARAMETER Id Identifier of policy to be copied .LINK https://github.com/crowdstrike/psfalcon/wiki/Copy-FalconResponsePolicy #> [CmdletBinding(SupportsShouldProcess)] param( [Parameter(Mandatory,Position=1)] [string]$Name, [Parameter(Position=2)] [string]$Description, [Parameter(Mandatory,ValueFromPipelineByPropertyName,ValueFromPipeline,Position=3)] [ValidatePattern('^[a-fA-F0-9]{32}$')] [string]$Id ) process { if ($PSCmdlet.ShouldProcess('Copy-FalconResponsePolicy','Get-FalconResponsePolicy')) { try { $Policy = Get-FalconResponsePolicy -Id $Id if ($Policy) { @('Name','Description').foreach{ if ($PSBoundParameters.$_) { $Policy.$_ = $PSBoundParameters.$_ } } $Clone = $Policy | New-FalconResponsePolicy if ($Clone.id) { $Clone.settings = $Policy.settings $Clone = $Clone | Edit-FalconResponsePolicy if ($Clone.enabled -eq $false -and $Policy.enabled -eq $true) { $Enable = $Clone.id | Invoke-FalconResponsePolicyAction enable if ($Enable) { $Enable } else { $Clone.enabled = $true $Clone } } } } } catch { throw $_ } } } } function Copy-FalconSensorUpdatePolicy { <# .SYNOPSIS Duplicate a Sensor Update policy .DESCRIPTION The specified Sensor Update policy will be duplicated without assigned Host Groups. If a policy description is not supplied, the description from the existing policy will be used. Requires 'Sensor update policies: Read', 'Sensor update policies: Write'. .PARAMETER Name Name for the policy that will be created .PARAMETER Description Description for the policy that will be created .PARAMETER Id Identifier of policy to be copied .LINK https://github.com/crowdstrike/psfalcon/wiki/Copy-FalconSensorUpdatePolicy #> [CmdletBinding(SupportsShouldProcess)] param( [Parameter(Mandatory,Position=1)] [string]$Name, [Parameter(Position=2)] [string]$Description, [Parameter(Mandatory,ValueFromPipelineByPropertyName,ValueFromPipeline,Position=3)] [ValidatePattern('^[a-fA-F0-9]{32}$')] [string]$Id ) process { if ($PSCmdlet.ShouldProcess('Copy-FalconSensorUpdatePolicy','Get-FalconSensorUpdatePolicy')) { try { $Policy = Get-FalconSensorUpdatePolicy -Id $Id if ($Policy) { @('Name','Description').foreach{ if ($PSBoundParameters.$_) { $Policy.$_ = $PSBoundParameters.$_ }} $Clone = $Policy | New-FalconSensorUpdatePolicy if ($Clone.id) { $Clone.settings = $Policy.settings $Clone = $Clone | Edit-FalconSensorUpdatePolicy if ($Clone.enabled -eq $false -and $Policy.enabled -eq $true) { $Enable = $Clone.id | Invoke-FalconSensorUpdatePolicyAction enable if ($Enable) { $Enable } else { $Clone.enabled = $true $Clone } } } } } catch { throw $_ } } } } |