Who is responsible for correcting the issue?

Explanations:

AWS Premium Support provides support services but does not directly manage or correct security configurations for user applications. It would assist in troubleshooting, but the responsibility lies with the company’s internal team.

The Amazon ES team manages the Amazon Elasticsearch Service infrastructure, but they do not typically handle individual customer configurations. The responsibility to secure the access permissions to clusters lies with the user.

The AWS IAM team is responsible for managing identity and access policies within AWS, but the specific issue here relates to incorrect access settings on Amazon ES clusters, which is not directly under the IAM team’s responsibility.

A SysOps Administrator is responsible for managing and securing AWS resources, including access control and permissions to applications like Amazon ES. They would address misconfigurations regarding open access to sensitive data in ES clusters.