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Retrieve vCenter Server Certificates
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William Lam
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Sep 9, 2023
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| Function Get-VCSACertificate { | ||
| <# | ||
| .DESCRIPTION Function to retreive all VCSA certifcates (Machine, VMCA Root, STS & Trusted Root) | ||
| .NOTES Author: William Lam | ||
| .NOTES Site: www.williamlam.com | ||
| .PARAMETER Type | ||
| Optionally filter on a specific certificate type: MACHINE, VMCA_ROOT, STS or TRUSTED_ROOT | ||
| #> | ||
| param( | ||
| [Parameter(Mandatory=$false)][ValidateSet("MACHINE","VMCA_ROOT","STS", "TRUSTED_ROOT")][string]$Type | ||
| ) | ||
|
|
||
| Function CreateCertObject { | ||
| param( | ||
| [Parameter(Mandatory=$true)]$Cert, | ||
| [Parameter(Mandatory=$true)]$Type | ||
| ) | ||
|
|
||
| $tmp = [pscustomobject] [ordered]@{ | ||
| Type = $Type | ||
| CertificateCommonName = [regex]::Match($cert.Subject, 'CN=([^,]+)').Value.replace("CN=",""); | ||
| CertificateIssuedBy = [regex]::Match($cert.issuer, 'CN=([^,]+)').Value.replace("CN=",""); | ||
| CertificateValidFrom = $cert.NotBefore; | ||
| CertificateValidUntil = $cert.NotAfter; | ||
| CertificateSignatureAlgorithm = $cert.SignatureAlgorithm.FriendlyName; | ||
| CertificateThumbprint = $cert.Thumbprint; | ||
| CertificateOrganization = [regex]::Match($cert.Subject, 'O=([^,]+)').Value.replace("O=",""); | ||
| CertificateOrganizationalUnit = [regex]::Match($cert.Subject, 'OU=([^,]+)').Value.replace("OU=",""); | ||
| CertificateStateProvince = [regex]::Match($cert.Subject, 'S=([^,]+)').Value.replace("S=",""); | ||
| CertificateCountry = [regex]::Match($cert.Subject, 'C=([^,]+)').Value.replace("C=",""); | ||
| IssuerName = [regex]::Match($cert.issuer, 'CN=([^,]+)').Value.replace("CN=",""); | ||
| IssuerOrganization = [regex]::Match($cert.issuer, 'O=([^,]+)').Value.replace("O=",""); | ||
| IssuerOrganizationalUnit = [regex]::Match($cert.issuer, 'OU=([^,]+)').Value.replace("OU=",""); | ||
| IssuerStateProvince = [regex]::Match($cert.issuer, 'S=([^,]+)').Value.replace("S=",""); | ||
| IssuerCountry = [regex]::Match($cert.issuer, 'C=([^,]+)').Value.replace("C=",""); | ||
| # BigInt required to convert serial from Hex->Dec https://stackoverflow.com/a/69207938 | ||
| IssuerSerialNumber = [decimal][bigint]::Parse($cert.SerialNumber, [System.Globalization.NumberStyles]::AllowHexSpecifier) | ||
| IssuerVersion = $cert.Version | ||
| } | ||
| return $tmp | ||
| } | ||
|
|
||
| $results =@() | ||
|
|
||
| # Cert library to convert from PEM format | ||
| $xCert2Type = [System.Security.Cryptography.X509Certificates.X509Certificate2] | ||
|
|
||
| # Retrieve VMCA_ROOT and STS | ||
| $signingCertService = Get-cisservice "com.vmware.vcenter.certificate_management.vcenter.signing_certificate" | ||
| $signingCerts = $signingCertService.get().signing_cert_chains.cert_chain | ||
|
|
||
| foreach ($signingCert in $signingCerts) { | ||
| $cert = $xCert2Type::CreateFromPem($signingCert) -as $xCert2Type | ||
| if($cert.Subject -eq "CN=ssoserverSign") { | ||
| $c = CreateCertObject -Cert $cert -Type "STS" | ||
| $results+=$c | ||
| } else { | ||
| $c = CreateCertObject -Cert $cert -Type "VMCA_ROOT" | ||
| $results+=$c | ||
| } | ||
| } | ||
|
|
||
| # Retrieve MACHINE | ||
| $tlsService = Get-cisservice "com.vmware.vcenter.certificate_management.vcenter.tls" | ||
| $tlsCert = $tlsService.get() | ||
|
|
||
| $tmp = [pscustomobject] [ordered]@{ | ||
| Type = "MACHINE" | ||
| CertificateCommonName = [regex]::Match($tlsCert.subject_dn, 'CN=([^,]+)').Value.replace("CN=",""); | ||
| CertificateIssuedBy = [regex]::Match($tlsCert.subject_dn, 'C=([^,]+)').Value.replace("C=",""); | ||
| CertificateValidFrom = $tlsCert.valid_from; | ||
| CertificateValidUntil = $tlsCert.valid_to; | ||
| CertificateSignatureAlgorithm = $tlsCert.signature_algorithm; | ||
| CertificateThumbprint = $tlsCert.thumbprint; | ||
| CertificateOrganization = [regex]::Match($tlsCert.subject_dn, 'O=([^,]+)').Value.replace("O=",""); | ||
| CertificateOrganizationalUnit = [regex]::Match($tlsCert.subject_dn, 'OU=([^,]+)').Value.replace("OU=",""); | ||
| CertificateStateProvince = [regex]::Match($tlsCert.subject_dn, 'ST=([^,]+)').Value.replace("ST=",""); | ||
| CertificateCountry = [regex]::Match($tlsCert.subject_dn, 'C=([^,]+)').Value.replace("C=",""); | ||
| IssuerName = [regex]::Match($tlsCert.issuer_dn, 'CN=([^,]+)').Value.replace("CN=",""); | ||
| IssuerOrganization = [regex]::Match($tlsCert.issuer_dn, 'O=([^,]+)').Value.replace("O=",""); | ||
| IssuerOrganizationalUnit = [regex]::Match($tlsCert.issuer_dn, 'OU=([^,]+)').Value.replace("OU=",""); | ||
| IssuerStateProvince = [regex]::Match($tlsCert.issuer_dn, 'ST=([^,]+)').Value.replace("ST=",""); | ||
| IssuerCountry = [regex]::Match($tlsCert.issuer_dn, 'C=([^,]+)').Value.replace("C=",""); | ||
| IssuerSerialNumber = $tlsCert.serial_number | ||
| IssuerVersion = $cert.version | ||
| } | ||
| $results+=$tmp | ||
|
|
||
| # Retrieve TRUSTED_ROOT | ||
| $trustedRootChainService = Get-cisservice "com.vmware.vcenter.certificate_management.vcenter.trusted_root_chains" | ||
| $trustedRootChains = $trustedRootChainService.list().chain | ||
| foreach ($trustedRootChain in $trustedRootChains) { | ||
| $rootChain = $trustedRootChainService.get($trustedRootChain).cert_chain.cert_chain | Out-String | ||
| $rootCert = $xCert2Type::CreateFromPem($rootChain) -as $xCert2Type | ||
|
|
||
| $tmp = [pscustomobject] [ordered]@{ | ||
| Type = "TRUSTED_ROOT" | ||
| CertificateCommonName = [regex]::Match($rootCert.Subject, 'CN=([^,]+)').Value.replace("CN=",""); | ||
| CertificateIssuedBy = [regex]::Match($rootCert.issuer, 'CN=([^,]+)').Value.replace("CN=",""); | ||
| CertificateValidFrom = $rootCert.NotBefore; | ||
| CertificateValidUntil = $rootCert.NotAfter; | ||
| CertificateSignatureAlgorithm = $rootCert.SignatureAlgorithm.FriendlyName; | ||
| CertificateThumbprint = $rootCert.Thumbprint; | ||
| CertificateOrganization = [regex]::Match($rootCert.Subject, 'O=([^,]+)').Value.replace("O=",""); | ||
| CertificateOrganizationalUnit = [regex]::Match($rootCert.Subject, 'OU=([^,]+)').Value.replace("OU=",""); | ||
| CertificateStateProvince = [regex]::Match($rootCert.Subject, 'S=([^,]+)').Value.replace("S=",""); | ||
| CertificateCountry = [regex]::Match($rootCert.Subject, 'C=([^,]+)').Value.replace("C=",""); | ||
| IssuerName = [regex]::Match($rootCert.issuer, 'CN=([^,]+)').Value.replace("CN=",""); | ||
| IssuerOrganization = [regex]::Match($rootCert.issuer, 'O=([^,]+)').Value.replace("O=",""); | ||
| IssuerOrganizationalUnit = [regex]::Match($rootCert.issuer, 'OU=([^,]+)').Value.replace("OU=",""); | ||
| IssuerStateProvince = [regex]::Match($rootCert.issuer, 'S=([^,]+)').Value.replace("S=",""); | ||
| IssuerCountry = [regex]::Match($rootCert.issuer, 'C=([^,]+)').Value.replace("C=",""); | ||
| # BigInt required to convert serial from Hex->Dec https://stackoverflow.com/a/69207938 | ||
| IssuerSerialNumber = [decimal][bigint]::Parse($rootCert.SerialNumber, [System.Globalization.NumberStyles]::AllowHexSpecifier) | ||
| IssuerVersion = $rootCert.Version | ||
| } | ||
| $results+=$tmp | ||
| } | ||
|
|
||
| if ($PSBoundParameters.ContainsKey("Type")){ | ||
| $results | where {$_.Type -eq $Type} | ||
| } else { | ||
| $results | ||
| } | ||
| } |