Thousands of secrets are there in my azure key vault.
So whenever I need to check/see the secret value at the Azure portal, I will need to scroll up to the end after loading all the secrets multiple times.
Is there any shortcut apart from API, available to see the same?
For now, the search text box in keyvault to search for a secret is not supported. You can vote up this feedback to promote it to be achieved.
However, you can access Azure Key Vault Secret through Azure Key Vault REST API.
We will start by registering an app in Azure AD and then add that app in the access policies of the key vault.
Then create a new request in Postman to get the access token.
https://login.microsoftonline.com/{{directoryId}}/oauth2/v2.0/token
After that we will send a couple of http requests to get access token and to get a secret’s value.
https://yourkeyvaultname.vault.azure.net/secrets/Secret1?api-version=2016-10-01
Try the Azure CLI:
az keyvault secret show --name "secret-name" --vault-name "keyvault-name" --query "value"
Microsoft docs
You can also use the KeyVaultScannerUtility to perform required search and update operations on Azure KeyVault. Do check it out and let us know if its useful.
https://github.com/microsoft/KeyVaultScannerUtility
Related
Our use case is to connect Azure Datafactory (ADF) to AWS S3, but use the Managed Identity (MSI) of ADF for authentication and authorization.
TL;DR version
The problem we run into is that we require the access_token for the MSI in ADF, so we can exchange that for temporary credentials in AWS IAM service. We need this access_token in text, such that we can provide it in the right way to the IAM service.
Situation (longer version)
High over, the solution should work like this:
ADF will get an access token for a specific resource using MSI
Using the access token, ADF will then get temporary credentials with AWS
Using the temporary credentials, ADF will get data from S3.
In order to do this, we needed a couple of things (heavily inspired by this blog):
Azure side:
We created an App Registration, and set an Application ID URI (which will be the 'scope' claim in the AzureAD access_token request).
We created a custom role in that App Registration.
In the Enterprise Application object of this App Registration (at this point, I feel like I should appologize for Microsofts terminology..), we have ensured that User Assignment is required.
We have assigned the custom role to our ADF MSI.
AWS side:
Added our AzureAD as an Identity Provider
Set the audience to the same value as Application ID URI.
Added a new role with a trusted entity of type Web Entity, and added proper S3 permissions to it.
Then to test this all out, we created an Azure Function (http triggered) which returns the request headers as body. We then created a Web Activity in ADF to this Azure Function endpoint, and set the authentication to "System Assigned Managed Identity", with a resource the same as the aforementioned Application ID URI. The result is that we get the Authorization header value, which we then manually put into a request to the AWS IAM service to exchange for the temporary credentials. The request to the AWS IAM service has the format of https://sts.amazonaws.com/?Action=AssumeRoleWithWebIdentity&RoleSessionName=app1&RoleArn=<arn>&WebIdentityToken=<access token>. This provides us with credentials, which can be used in a Linked Service in ADF (we tested this).
Problem statement
We now use Azure Function, in order to have ADF automatically get an access_token for the requested (AWS) resource (Application ID URI), and add that access_token to the request to the Function, which solely returns it to us. We want to do this without an additional component. I can think of two ways:
(option 1) - A web activity to some Microsoft endpoint that returns the access_token immediately.
(option 2) - Have AWS take an Authorization header rather than a WebIdentityToken query parameter.
I spent some time on option 2, but that seems like a no go; the access_token really needs to be part of the URL parameters when trying to exchange them for temporary AWS credentials.
Option 1 however, I had an idea; there is the IMDS on virtual machines in Azure. This can be used to get access_tokens when you are on a VM rather than a PaaS service. I tried making a call to http://169.254.169.254/metadata/identity/oauth2/token?api-version=2021-12-13&resource=<Application ID URI> using Web Activity (both with a AutoResolveIR and a SelfHosted IR!), but I got the error [ClientSideException] Value does not fall within the expected range. I did set the header Metadata to value true as described in the docs.
Is there another way? Apologies if this is an abundance of information, but it does provide you with all the required details of what has been tried and how the setup should (and can) work.
It sounds like you're using Azure AD as an identity provider in AWS. If possible, you can create a AWS user with a permanent access key/secret key. The AWS user can have access to your S3 buckets, and you won't need to deal with STS in ADF.
Another idea is to use Azure KeyVault. When you create your S3 linked service in ADF, you can parameterize the access key and secret key. Your AWS access key and secret key will be stored in Azure KeyVault. Then you can have a Azure function that updates the KeyVault on a schedule or at the start of your ADF pipeline.
To obtain the access token, you could try using the Azure REST API. To obtain the access token for the specified resource using the MSI, you might use a Web Activity in ADF to make a REST API request to the Azure REST API endpoint.
Set an Application ID URI and create an Azure AD app registration.
The app registration should include a custom role.
Give the ADF MSI the custom role.
REST API calls to the Azure REST API endpoint that return the access
token for the specified resource using the MSI can be made using a
Web Activity in ADF.
The URL for the REST API is:
https://login.microsoftonline.com/{tenantId}/oauth2/v2.0/token
{tenantId} should be changed to your Azure AD tenancy ID.
In the REST API call, enter the following values:
grant_type: client_credentials
client_id: <application_id>
client_secret: <application_secret>
scope:
Been struggling with this for a day, and am finally reaching out for help. I'm attempting to use Azure Key Vault to store some configs in a Typescript application. I've created a service principle in Azure Active Directory and a Key Vault. In the Key Vault, I've gone to Role Assignments and given the app the role Key Vault Secrets User (which should provide list and read permissions). From what I can tell, my app is successfully authenticating, but when it requests a secret, it is getting a 403. What step could I be missing?
Log which suggests the authentication was successful
azure:identity:info IdentityClient: [https://login.microsoftonline.com/38e3589f-a40f-4fe6-beee-f4028442450e/oauth2/v2.0/token] token acquired, expires on 1593536920022
Log with the failure
The user, group or application 'appid=355ca45f-a94f-43e6-9234-65c713965c9b;oid=524f25bb-ee3f-4216-8474-1f01fd79f1f8;iss=https://sts.windows.net/38e3589f-a40f-4fe6-beee-f4028442450e/' does not have secrets get permission on key vault '<MyVault>;location=westus2'. For help resolving this issue, please see https://go.microsoft.com/fwlink/?linkid=2125287
The step I missed was adding an Access Policy. I don't understand the difference between Access control (IAM) and Access Policies, so I don't understand why both are required. Hope this helps someone else.
I don't understand the difference between Access control (IAM) and Access Policies, so I don't understand why both are required.
Actually, to access the secret in the keyvault, the permission in Access Policies is enough.
The access of the keyvault is divided into two parts, management plane(Access control (IAM)) and data plane(Access Policies).
The permissions in management plane let you manage the keyvault, e.g. set Key Vault tags, the permissions in data plane let you do operations on the secret, key, certificate.
In your case, even if you give the app(service principal) an RBAC role in the Access control (IAM), it will not have the permission to access the secret, so you need to add it to the access policies.
Something you should note is some roles have the permission to add access policies, e.g. Contributor, it means if you give the role to your app, it will be able to add itself to the access policies. But if it does not add itself to the access policies, it will not have the data plane permission.
For more details, you could refer to this doc - Secure access to a key vault.
I am trying to limit access to the secrets/certificates so that only certain users can view/access some of them.
How do I go about doing that?
limit access to the secrets/certificates so that only certain users can view/access some of them.
In short, it's impossible.
You can limit only certain user to access all the secrets or certificates, other than access some of the secrets.
Simply find the Azure Key Vault in the Azure portal UI, click Access policies under settings, and add a new access policy. You can define fine-grained permissions for accessing Key, Secret, and Certificates (which Azure Key Vault can also store, by the way). However, when you allow some user to access your key vault secret, they will access all the secrets in azure Key vault.
For more details, you could refer to this article.
I am trying to get access to users specific Key Vaults secrets on behalf of the user and am a bit confused about how the Azure IAM access polices work together with Key Vaults access polices. What I want to do is grant the Application access to users specific Key Vault.
Reading the Azure Key Vault docs it seems that "User plus application access/compound identity" would allow me to do that. However I can't seem to find any examples of this implementation in Azure docs. I thought that "Select Principal" = user and "Authorized application" = service_principal configuration in Key Vault "Add access policy" tab specifies what application can access which Key Vault on users behalf but "Authorized application" option does not seem to have any effect.
I am using App/Service Principal OAuth authorization to check if the user is in AD graph and after that am trying to access users specific Key Vault on users behalf.
Access policies that I have currently tested and are not working for me:
Configutation where Service Principal do not have Delegated permissions to users Azure Key Vault service
Can't access Key Vault no matter what is IAM or Key Vault access policy - Azure will give "Consent required error" on token request.
Configurations where Service Principal has Delegated permissions to Azure Key Vault Service
When Key Vaults access policy has been set for user/user and service principal, I can access Key Vaults secrets on users behalf.
This however applies to any of the Key Vaults that user has, which I do not want.
Could anyone point me in the right direction on how to access users specific Key Vault on behalf of the user?
When we are trying to retrieve secret from keyvault using KeyVaultClient (c#) we are getting 403 access denied even though the same user can access the vault secret from Azure Portal. If we give explicit access to the user on key vault then we are able to retrieve the secrets. This looks like an issue and please help on possible workarounds.
You may not have a service principal created for your application yet. If so, create that first and then use the object ID of the service principal to authorize access for the application. If you are using a VM you also need to add the VM service principal to the Keyvault's policies.
Take a look at this sample code to see how to create application and service principal and give permission to the service principal.
This was due to while generating token Group claims were not getting set and hence key vault was checking only of direct permissions. Once we enable group claims by following these steps from here then it is working fine now ..