mirror of
https://github.com/alvarsedano/pfSense-Certificate-Viewer.git
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119 lines
4.7 KiB
PowerShell
119 lines
4.7 KiB
PowerShell
####
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### Extracting pfSense Certificates (without private key)
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####
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# Redefine the $cfg string variable to point to a valid non encrypted pfSense XML configuration backup file.
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# You can also pass the command line FilePath parameter as path to the input XML cfg file.
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# The script will return the CA certificates, Server certificates, User certificated (used or not used) and duplicate Serial Number Certificates
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#
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# Tested on PowerShell 5 and avobe
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# Created by Alvaro Sedano Galindo. al_sedano@hotmail.com
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#
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#[CmdletBinding()]
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Param (
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[Parameter(Mandatory=$false,
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Position=0,
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ValueFromPipeline=$true,
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ValueFromPipelineByPropertyName=$true)]
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[Alias("File")]
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[string]$FilePath)
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Function Get-CN {
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Param([Parameter(Mandatory=$true)][string]$name)
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if($name -match "CN=([^,]*)") {
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$Matches[1] }
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else {$name}
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}
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Function Add-Lista {
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Param([Parameter(Mandatory=$true)][ref]$lista `
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,[Parameter(Mandatory=$true)][ref]$obj `
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,[Parameter(Mandatory=$true)][bool]$fromCA)
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[string]$oidCLI = '1.3.6.1.5.5.7.3.2'
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[string]$oidSRV = '1.3.6.1.5.5.7.3.1'
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[array]$revs = $listaR | Select -ExpandProperty refid -Unique
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[System.Security.Cryptography.X509Certificates.X509Certificate2]$ccc = $null
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foreach($c in $obj.Value) {
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$ccc = [System.Security.Cryptography.X509Certificates.X509Certificate2]::new([System.Convert]::FromBase64String($c.crt))
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$ccc.FriendlyName = $c.descr.'#cdata-section'
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$objTmp = $ccc | Select *, @{N='IsCA';E={$fromCA}} `
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, @{N='IsServer';E={-not $fromCA -and $_.EnhancedKeyUsageList.ObjectId -contains $oidSRV}} `
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, @{N='IsClient';E={-not $fromCA -and $_.EnhancedKeyUsageList.ObjectId -contains $oidCLI}} `
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, @{N='sIssuer';E={Get-CN($_.Issuer)}}, @{N='sSubject';E={Get-CN($_.Subject)}} `
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, @{N='refid'; E={$c.refid}} `
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, @{N='isRevoked'; E={-not $fromCA -and $c.refid -in $revs}} `
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, @{N='revokedOn'; Expression={$null}} `
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if ($objTmp.isRevoked) {
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[string[]]$strRev = @()
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foreach($d in $listaR) {
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if ($d.refid -eq $c.refid) {
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$strRev += [string]($d.listRev)
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}
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}
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$objTmp.revokedOn = $strRev
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}
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$lista.Value += $objTmp
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}
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}
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#
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# BODY
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#
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# Check if param 0 is assigned
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if ($FilePath -eq $null -or $FilePath -eq '') {
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[string]$cfg = "$env:USERPROFILE\Downloads\config-pfSense01.private.xml"
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}
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else {
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# Use the FilePath console input parameter
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[string]$cfg = $FilePath
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}
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if (-not (Test-Path -Path $cfg)) {
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Write-Host "File '$cfg' not found. Process stopped." -BackgroundColor DarkRed
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Exit 1
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}
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#Read XML pfSense config file
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[xml]$fxml = Get-Content $cfg -Encoding Default
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#Get the CRL revocation list
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[DateTime]$time0 = '1970-01-01'
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[array]$listaR = @()
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foreach($r in $fxml.pfsense.crl) {
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$listaR += $r.cert | Select @{N='listRev';E={$r.descr.'#cdata-section'}}, caref, refid, reason, @{N='revDate';E={$time0.AddSeconds($_.revoke_time)}}
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}
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#Add CA Certificates to $listaC (WITHOUT private keys)
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[array]$listaC = @()
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Add-Lista -lista ([ref]$listaC) -obj ([ref]$fxml.pfsense.ca) -fromCA $true
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#Add user/server certificates to $listaC (WITHOUT private keys)
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Add-Lista -lista ([ref]$listaC) -obj ([ref]$fxml.pfsense.cert) -fromCA $false
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#Note: User Certificates created with old pfSense versions can set the EnhancedKeyUsageList property to <empty>
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Remove-Variable fxml, r
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#List of CA Certificates
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Write-Output "`nCA Certificates"
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$listaC | Where-Object {$_.isCA} | Select sIssuer, SerialNumber, FriendlyName, DnsNameList, sSubject | Sort-Object -Property sIssuer, SerialNumber | ft
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#List of Server Certificates
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Write-Output "`nServer Certificates"
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$listaC | Where-Object {$_.isServer} | Select sIssuer, SerialNumber, FriendlyName, DnsNameList, sSubject, revokedOn | Sort-Object -Property sIssuer, SerialNumber | ft
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#List of User Certificates (not CA and not Server)
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Write-Output "`nUser Certificates"
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$listaC | Where-Object {-not ($_.isCA -or $_.isServer)} | Select sIssuer, SerialNumber, FriendlyName, DnsNameList, sSubject, revokedOn | Sort-Object -Property sIssuer, SerialNumber | ft
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#List of Dupicated SerialNumbers (per CA)
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Write-Output "`nDuplicated Serial Numbers (per CA)"
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$listaC | Select sIssuer, SerialNumber, FriendlyName, DnsNameList, sSubject, revokedOn | Group-Object -Property sIssuer, SerialNumber | Where-Object {$_.Count -gt 1} | Select -ExpandProperty Group | ft
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