List all AWS Certificate Manager certificates

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By Saad Khamis

July 31, 2024

AWS , Cloud , PowerShell

14074 views

In this blog, I will share a PowerShell script to list all AWS Certificate Manager (ACM) certificates across all profiles and regions. This script will include details such as the certificate domain, type, expiration date, and associated resources (InUseBy). You can choose to display the results, export them to a file, or both.

Explore my other articles about AWS services and Microsoft Azure services.

Contents hide

1 Introduction

2 Prerequisites

3 PowerShell Cmdlets

4 Retrieve metadata about a specified ACM certificate

5 Compile requested EBS snapshot information

6 Compile requested ACM certificates information within a single profile and region

7 Compile requested ACM certificates information within a single profile

8 Compile requested ACM certificates information across all profiles and regions

9 Conclusion

Introduction

Use AWS Certificate Manager (ACM) to provision, manage, and deploy public and private SSL/TLS certificates for AWS services and your internal connected resources.

I needed a comprehensive list of all AWS Certificate Manager (ACM) certificates managed by ACM, including details such as the certificate domain, type, expiration date, associated resource (InUseBy), and other properties. I will use this list to determine which certificates to delete, keep, or renew. To achieve this, I utilized PowerShell and “AWS Tools for PowerShell – AWS Certificate Manager”.

<# Requested ACM certificate information.
 
Profile            : Production
Region             : us-east-1
DomainName         : stage.saadkhamis.com
Type               : AMAZON_ISSUED
RenewalEligibility : ELIGIBLE
Status             : ISSUED
Expiration         : 8/15/2024 11:59:59 PM
Domains            : stage.saadkhamis.com
InUseBy            : arn:aws:cloudfront::123456789012:distribution/A12ABC1234ABCD
CertificateArn     : arn:aws:acm:us-east-1:123456789013:certificate/12345678-abcd-1234-abcd-123456789014
 
#>

<# Requested ACM certificate information.

Profile : Production

Region : us-east-1

DomainName : stage.saadkhamis.com

Type : AMAZON_ISSUED

RenewalEligibility : ELIGIBLE

Status : ISSUED

Expiration : 8/15/2024 11:59:59 PM

Domains : stage.saadkhamis.com

InUseBy : arn:aws:cloudfront::123456789012:distribution/A12ABC1234ABCD

CertificateArn : arn:aws:acm:us-east-1:123456789013:certificate/12345678-abcd-1234-abcd-123456789014

Prerequisites

To execute the script provided in this blog, you need to:

Install and configure AWS Tools for PowerShell.
Log in to all necessary AWS accounts and profiles.
Configure your IAM permissions to allow required access to AWS Certificate Manager (ACM) certificates.

PowerShell Cmdlets

Here are the PowerShell cmdlets we will use.

Get-ACCTRegionList Lists all the Regions for a given account and their respective opt-in statuses.
Get-ACMCertificateDetail Returns detailed metadata about the specified ACM certificate.
Get-ACMCertificateList Retrieves a list of certificate ARNs and domain names.
Get-AWSCredential Returns an AWSCredentials object initialized from either credentials currently set as default in the shell or saved and associated with the supplied name from the local credential store.

Retrieve metadata about a specified ACM certificate

First, we will begin by using the Get-ACMCertificateDetail cmdlet to retrieve metadata about a specific ACM certificate.

$Profile = "Production"
$Region  = "us-east-1"
$AcmCertificateArn = "arn:aws:acm:us-east-1:123456789013:certificate/12345678-abcd-1234-abcd-123456789014"

$AcmCertificateDetail = Get-ACMCertificateDetail `
                            -ProfileName $Profile `
                            -Region $Region `
                            -CertificateArn $AcmCertificateArn

<#

$AcmCertificateDetail
 
CertificateArn          : arn:aws:acm:us-east-1:123456789013:certificate/12345678-abcd-1234-abcd-123456789014
CertificateAuthorityArn : 
CreatedAt               : 7/18/2023 5:06:05 PM
DomainName              : stage.saadkhamis.com
DomainValidationOptions : {stage.saadkhamis.com}
ExtendedKeyUsages       : {TLS_WEB_SERVER_AUTHENTICATION, TLS_WEB_CLIENT_AUTHENTICATION}
FailureReason           : 
ImportedAt              : 1/1/0001 12:00:00 AM
InUseBy                 : {arn:aws:cloudfront::123456789012:distribution/A12ABC1234ABCD}
IssuedAt                : 7/18/2023 5:56:52 PM
Issuer                  : Amazon
KeyAlgorithm            : RSA-2048
KeyUsages               : {DIGITAL_SIGNATURE, KEY_ENCIPHERMENT}
NotAfter                : 8/15/2024 11:59:59 PM
NotBefore               : 7/18/2023 12:00:00 AM
Options                 : Amazon.CertificateManager.Model.CertificateOptions
RenewalEligibility      : ELIGIBLE
RenewalSummary          : Amazon.CertificateManager.Model.RenewalSummary
RevocationReason        : 
RevokedAt               : 1/1/0001 12:00:00 AM
Serial                  : 99:c9:99:bf:89:9e:09:9a:be:9f:ef:99:99:d9:f9:99
SignatureAlgorithm      : SHA256WITHRSA
Status                  : ISSUED
Subject                 : CN=stage.saadkhamis.com
SubjectAlternativeNames : {stage.saadkhamis.com}
Type                    : AMAZON_ISSUED

#>

$Profile = "Production"

$Region = "us-east-1"

$AcmCertificateArn = "arn:aws:acm:us-east-1:123456789013:certificate/12345678-abcd-1234-abcd-123456789014"

$AcmCertificateDetail = Get-ACMCertificateDetail `

-ProfileName $Profile `

-Region $Region `

-CertificateArn $AcmCertificateArn

$AcmCertificateDetail

CertificateArn : arn:aws:acm:us-east-1:123456789013:certificate/12345678-abcd-1234-abcd-123456789014

CertificateAuthorityArn :

CreatedAt : 7/18/2023 5:06:05 PM

DomainName : stage.saadkhamis.com

DomainValidationOptions : {stage.saadkhamis.com}

ExtendedKeyUsages : {TLS_WEB_SERVER_AUTHENTICATION, TLS_WEB_CLIENT_AUTHENTICATION}

FailureReason :

ImportedAt : 1/1/0001 12:00:00 AM

InUseBy : {arn:aws:cloudfront::123456789012:distribution/A12ABC1234ABCD}

IssuedAt : 7/18/2023 5:56:52 PM

Issuer : Amazon

KeyAlgorithm : RSA-2048

KeyUsages : {DIGITAL_SIGNATURE, KEY_ENCIPHERMENT}

NotAfter : 8/15/2024 11:59:59 PM

NotBefore : 7/18/2023 12:00:00 AM

Options : Amazon.CertificateManager.Model.CertificateOptions

RenewalEligibility : ELIGIBLE

RenewalSummary : Amazon.CertificateManager.Model.RenewalSummary

RevocationReason :

RevokedAt : 1/1/0001 12:00:00 AM

Serial : 99:c9:99:bf:89:9e:09:9a:be:9f:ef:99:99:d9:f9:99

SignatureAlgorithm : SHA256WITHRSA

Status : ISSUED

Subject : CN=stage.saadkhamis.com

SubjectAlternativeNames : {stage.saadkhamis.com}

Type : AMAZON_ISSUED

Compile requested EBS snapshot information

Second, let’s compile the required information. Note that the “-join” operator concatenates a set of strings into a single string.

$Profile = "Production"
$Region  = "us-east-1"
$AcmCertificateArn = "arn:aws:acm:us-east-1:123456789013:certificate/12345678-abcd-1234-abcd-123456789014"

$AcmCertificateDetail = Get-ACMCertificateDetail `
                            -ProfileName $Profile `
                            -Region $Region `
                            -CertificateArn $AcmCertificateArn

$ACMCertificateDetail | `
    Select @{N="Profile";E={$Profile}}, `
        @{N="Region";E={$Region}},`
        DomainName, Type, RenewalEligibility, Status, `
        @{N="Expiration";E={$_.NotAfter}}, `
        @{N="Domains";E={$_.SubjectAlternativeNames -join "`n"}}, `
        @{N="InUseBy";E={$_.InUseBy -join "`n"}}, CertificateArn

<#

Profile            : Production
Region             : us-east-1
DomainName         : stage.saadkhamis.com
Type               : AMAZON_ISSUED
RenewalEligibility : ELIGIBLE
Status             : ISSUED
Expiration         : 8/15/2024 11:59:59 PM
Domains            : stage.saadkhamis.com
InUseBy            : arn:aws:cloudfront::123456789012:distribution/A12ABC1234ABCD
CertificateArn     : arn:aws:acm:us-east-1:123456789013:certificate/12345678-abcd-1234-abcd-123456789014
 
#>

$Profile = "Production"

$Region = "us-east-1"

$AcmCertificateArn = "arn:aws:acm:us-east-1:123456789013:certificate/12345678-abcd-1234-abcd-123456789014"

$AcmCertificateDetail = Get-ACMCertificateDetail `

-ProfileName $Profile `

-Region $Region `

-CertificateArn $AcmCertificateArn

$ACMCertificateDetail | `

Select @{N="Profile";E={$Profile}}, `

@{N="Region";E={$Region}},`

DomainName, Type, RenewalEligibility, Status, `

@{N="Expiration";E={$_.NotAfter}}, `

@{N="Domains";E={$_.SubjectAlternativeNames -join "`n"}}, `

@{N="InUseBy";E={$_.InUseBy -join "`n"}}, CertificateArn

Profile : Production

Region : us-east-1

DomainName : stage.saadkhamis.com

Type : AMAZON_ISSUED

RenewalEligibility : ELIGIBLE

Status : ISSUED

Expiration : 8/15/2024 11:59:59 PM

Domains : stage.saadkhamis.com

InUseBy : arn:aws:cloudfront::123456789012:distribution/A12ABC1234ABCD

CertificateArn : arn:aws:acm:us-east-1:123456789013:certificate/12345678-abcd-1234-abcd-123456789014

Compile requested ACM certificates information within a single profile and region

Third, let’s compile the required information for a single profile and region.

$Profile = "Production"
$Region  = "us-east-1"

# Get ACM certificate list.
$AcmCertificates = Get-ACMCertificateList `
                        -ProfileName $Profile `
                        -Region $Region

# Initialize output
$Output = @()

# Are ACM certificates present in the specified profile and region?
If ($AcmCertificates) {
    # For each certificate:
    ForEach ($AcmCertificate in $AcmCertificates) {
        Write-Host ("$($AcmCertificate.DomainName)")
        # Get certificate information.
        $AcmCertificateDetail = Get-ACMCertificateDetail `
                                    -ProfileName $Profile `
                                    -Region $Region `
                                    -CertificateArn $AcmCertificate.CertificateArn
        # Complie requested information.
        $Output += $AcmCertificateDetail | `
                        Select @{N="Profile";E={$Profile}}, `
                        @{N="Region";E={$Region}},`
                        DomainName, Type, RenewalEligibility, Status, `
                        @{N="Expiration";E={$_.NotAfter}}, `
                        @{N="Domains";E={$_.SubjectAlternativeNames -join "`n"}}, `
                        @{N="InUseBy";E={$_.InUseBy -join "`n"}}, CertificateArn
    } # $AcmCertificate
}

$Profile = "Production"

$Region = "us-east-1"

# Get ACM certificate list.

$AcmCertificates = Get-ACMCertificateList `

-ProfileName $Profile `

-Region $Region

# Initialize output

$Output = @()

# Are ACM certificates present in the specified profile and region?

If ($AcmCertificates) {

# For each certificate:

ForEach ($AcmCertificate in $AcmCertificates) {

Write-Host ("$($AcmCertificate.DomainName)")

# Get certificate information.

$AcmCertificateDetail = Get-ACMCertificateDetail `

-ProfileName $Profile `

-Region $Region `

-CertificateArn $AcmCertificate.CertificateArn

# Complie requested information.

$Output += $AcmCertificateDetail | `

Select @{N="Profile";E={$Profile}}, `

@{N="Region";E={$Region}},`

DomainName, Type, RenewalEligibility, Status, `

@{N="Expiration";E={$_.NotAfter}}, `

@{N="Domains";E={$_.SubjectAlternativeNames -join "`n"}}, `

@{N="InUseBy";E={$_.InUseBy -join "`n"}}, CertificateArn

} # $AcmCertificate

}

Compile requested ACM certificates information within a single profile

Third, let’s compile the required information for a single profile and all enabled regions within the profile

$Profile = "Production"
$Region  = "us-east-1"
$DefaultRegion = "us-east-1"

# Initialize output
$Output = @()

# Get enabled regions
$EnabledRegions = $null
$EnabledRegions = (Get-ACCTRegionList `
                        -ProfileName $Profile `
                        -Region $DefaultRegion `
                        -RegionOptStatusContain @("ENABLED","ENABLED_BY_DEFAULT") | `
                        Sort-Object RegionName).RegionName

# Are there enabled regions?
If ($EnabledRegions) {
    # For each region
    ForEach ($Region in $EnabledRegions) {
        Write-Host (">>> $Region")
        # Get ACM certificate list.
        $AcmCertificates = Get-ACMCertificateList `
                                -ProfileName $Profile `
                                -Region $Region
        # Are ACM certificates present in the specified profile and region?
        If ($AcmCertificates) {
            # For each certificate:
            ForEach ($AcmCertificate in $AcmCertificates) {
                Write-Host ("`t$($AcmCertificate.DomainName)")
                # Get certificate information.
                $AcmCertificateDetail = Get-ACMCertificateDetail `
                        -ProfileName $Profile `
                        -Region $Region `
                        -CertificateArn $AcmCertificate.CertificateArn
                # Complie requested information.
                $Output += $AcmCertificateDetail | `
                    Select @{N="Profile";E={$Profile}}, `
                        @{N="Region";E={$Region}},`
                        DomainName, Type, RenewalEligibility, Status, `
                        @{N="Expiration";E={$_.NotAfter}}, `
                        @{N="Domains";E={$_.SubjectAlternativeNames -join "`n"}}, `
                        @{N="InUseBy";E={$_.InUseBy -join "`n"}}, CertificateArn
            } # $AcmCertificate
        }
    }
}

$Profile = "Production"

$Region = "us-east-1"

$DefaultRegion = "us-east-1"

# Initialize output

$Output = @()

# Get enabled regions

$EnabledRegions = $null

$EnabledRegions = (Get-ACCTRegionList `

-ProfileName $Profile `

-Region $DefaultRegion `

-RegionOptStatusContain @("ENABLED","ENABLED_BY_DEFAULT") | `

Sort-Object RegionName).RegionName

# Are there enabled regions?

If ($EnabledRegions) {

# For each region

ForEach ($Region in $EnabledRegions) {

Write-Host (">>> $Region")

# Get ACM certificate list.

$AcmCertificates = Get-ACMCertificateList `

-ProfileName $Profile `

-Region $Region

# Are ACM certificates present in the specified profile and region?

If ($AcmCertificates) {

# For each certificate:

ForEach ($AcmCertificate in $AcmCertificates) {

Write-Host ("`t$($AcmCertificate.DomainName)")

# Get certificate information.

$AcmCertificateDetail = Get-ACMCertificateDetail `

-ProfileName $Profile `

-Region $Region `

-CertificateArn $AcmCertificate.CertificateArn

# Complie requested information.

$Output += $AcmCertificateDetail | `

Select @{N="Profile";E={$Profile}}, `

@{N="Region";E={$Region}},`

DomainName, Type, RenewalEligibility, Status, `

@{N="Expiration";E={$_.NotAfter}}, `

@{N="Domains";E={$_.SubjectAlternativeNames -join "`n"}}, `

@{N="InUseBy";E={$_.InUseBy -join "`n"}}, CertificateArn

} # $AcmCertificate

}

Compile requested ACM certificates information across all profiles and regions

Finally, let’s compile the required information across all profiles and regions.

$Profile = "Production"
$Region  = "us-east-1"
$DefaultRegion = "us-east-1"

# Initialize output
$Output = @()

# Get a profiles list.
$Profiles = Get-AWSCredential -ListProfileDetail | `
                Where-Object {$_.ProfileName -notlike "default"} | `
                Sort-Object ProfileName

# For each profile:
ForEach ($Profile in $Profiles.ProfileName) {
    Write-Host ("*** $Profile")
    # Get enabled regions
    $EnabledRegions = $null
    $EnabledRegions = (Get-ACCTRegionList `
                            -ProfileName $Profile `
                            -Region $DefaultRegion `
                            -RegionOptStatusContain @("ENABLED","ENABLED_BY_DEFAULT") | `
                            Sort-Object RegionName).RegionName
    # Are there enabled regions?
    If ($EnabledRegions) {
        # For each region:
        ForEach ($Region in $EnabledRegions) {
            Write-Host ("`t>>> $Region")
            # Get ACM certificate list.
            $AcmCertificates = Get-ACMCertificateList `
                                    -ProfileName $Profile `
                                    -Region $Region
            # Are ACM certificates present in the specified profile and region?
            If ($AcmCertificates) {
                # For each certificate:
                ForEach ($AcmCertificate in $AcmCertificates) {
                    Write-Host ("`t`t$($AcmCertificate.DomainName)")
                    # Get certificate information.
                    $AcmCertificateDetail = Get-ACMCertificateDetail `
                            -ProfileName $Profile `
                            -Region $Region `
                            -CertificateArn $AcmCertificate.CertificateArn
                    # Complie requested information.
                    $Output += $AcmCertificateDetail | `
                        Select @{N="Profile";E={$Profile}}, `
                            @{N="Region";E={$Region}},`
                            DomainName, Type, RenewalEligibility, Status, `
                            @{N="Expiration";E={$_.NotAfter}}, `
                            @{N="Domains";E={$_.SubjectAlternativeNames -join "`n"}}, `
                            @{N="InUseBy";E={$_.InUseBy -join "`n"}}, CertificateArn
                } # $AcmCertificate
            }

        }
    }
}

# Export to CSV file.
$Output | Export-Csv -NoTypeInformation -Path "C:\Temp\AWS_AcmCertificats.csv"

$Profile = "Production"

$Region = "us-east-1"

$DefaultRegion = "us-east-1"

# Initialize output

$Output = @()

# Get a profiles list.

$Profiles = Get-AWSCredential -ListProfileDetail | `

Where-Object {$_.ProfileName -notlike "default"} | `

Sort-Object ProfileName

# For each profile:

ForEach ($Profile in $Profiles.ProfileName) {

Write-Host ("*** $Profile")

# Get enabled regions

$EnabledRegions = $null

$EnabledRegions = (Get-ACCTRegionList `

-ProfileName $Profile `

-Region $DefaultRegion `

-RegionOptStatusContain @("ENABLED","ENABLED_BY_DEFAULT") | `

Sort-Object RegionName).RegionName

# Are there enabled regions?

If ($EnabledRegions) {

# For each region:

ForEach ($Region in $EnabledRegions) {

Write-Host ("`t>>> $Region")

# Get ACM certificate list.

$AcmCertificates = Get-ACMCertificateList `

-ProfileName $Profile `

-Region $Region

# Are ACM certificates present in the specified profile and region?

If ($AcmCertificates) {

# For each certificate:

ForEach ($AcmCertificate in $AcmCertificates) {

Write-Host ("`t`t$($AcmCertificate.DomainName)")

# Get certificate information.

$AcmCertificateDetail = Get-ACMCertificateDetail `

-ProfileName $Profile `

-Region $Region `

-CertificateArn $AcmCertificate.CertificateArn

# Complie requested information.

$Output += $AcmCertificateDetail | `

Select @{N="Profile";E={$Profile}}, `

@{N="Region";E={$Region}},`

DomainName, Type, RenewalEligibility, Status, `

@{N="Expiration";E={$_.NotAfter}}, `

@{N="Domains";E={$_.SubjectAlternativeNames -join "`n"}}, `

@{N="InUseBy";E={$_.InUseBy -join "`n"}}, CertificateArn

} # $AcmCertificate

}

# Export to CSV file.

$Output | Export-Csv -NoTypeInformation -Path "C:\Temp\AWS_AcmCertificats.csv"

Conclusion

Congratulations on reaching the end of this blog! You’ve successfully navigated through some potentially challenging and lengthy code. Well done!

In this blog, I used PowerShell and AWS Tools for PowerShell to create a script that retrieves all AWS ACM certificates across all profiles and regions. This information will help determine which certificates to delete, keep, or renew.

Did you find this blog easy to follow and helpful? I would love to hear your feedback and suggestions, so please share them in the comments below.

Disclaimer

Purpose of the code contained in blog is solely for learning and demo purposes. Author will not be held responsible for any failure or damages caused due to any other usage.