any situation where az login using Service principal works even after secret expiry?

Question

I have been recently added to an Azure subscription. They shared me Service principal details.. which included Application(Client) ID, tenant ID, client secret. I was able to log in successfully. But, When I checked the secret details, it's expired in the month of January 2021. Is there any situation where the Service principal works even after secret expiry?

Answer 1

No, It doesn't authenticate with an expired client secret and will result in AADSTS7000222 error.

I tested the same on Bash and Powershell (Terraform Authentication with SP) using the above shown expired secret, Both gave me the expected results as shown below:

Note: If You are still seeing the same response , try deleting that secret and create a new one with custom expiry date of 1 day and check if you can successfully login using the new expired secret. If you can with the new expired secret as well , then Please create a support request to Azure from Portal (Help+Support) for assisted guidance.