AWS EC2 'You are not authorized to perform this operation. Encoded authorization failure message:'

4
votes

I am attempting to create an EC2 instance and get the following error message. How do I decode it ?

Launch Failed

You are not authorized to perform this operation. Encoded authorization failure message: KDmmJmkLKmQhatEqYt...MN3iUtfAa

1
amazon-web-servicesamazon-ec2aws-cli
FYI, the reason that the message is encoded is that the message can convey information about security (eg which security groups are permitted). Revealing this information could reduce security. Only people with permission to decode the message can access this information. – John Rotenstein

1 Answers

9
votes

use the following aws cli command from the console or CloudShell:

aws sts decode-authorization-message --encoded-message KDmmJmkLKm...iUtfAa