AWS CLI Denied Permission Due to IAM Policy - Policy has all permissions correct. Previously worked fine.

Question

I had to update my CLI on a few devices, and I am now unable to access anything pertaining to gamelift's API via an explicit denial. I double checked the permission policy that I assigned to the IAM user, and while it is set to allow full access to resources, it will not work.

Any suggestions or recommendations? I  have also tried re-creating the policy via JSON and the visual GUI. I even tried creating a new user to use, and nothing works. I even ended up uninstalling the CLI tool and deleting the configuration and credential files multiple times trying to see if that would fix the issue.

Policy below:

{
  "Version": "2012-10-17",
  "Statement": {
    "Effect": "Allow",
    "Action": "gamelift:*",
    "Resource": "*"
  }
}

Accepted Answer

You mentioned "explicit denial", and you don't have Deny statements in your IAM principal's policies, right?  Then there must be a Deny statement elsewhere.  See https://docs.aws.amazon.com/IAM/latest/UserGuide/reference_policies_evaluation-logic.html - it could be in an Organization SCP, Resource policy (though I don't think Gamelift has these) or a Permissions Boundary.

AWS CLI Denied Permission Due to IAM Policy - Policy has all permissions correct. Previously worked fine.

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