Description

Simple Notification Service (SNS) is a managed service that provides message delivery from publishers to subscribers (also known as producers and consumers). It was detected that the SNS topic {AwsSnsTopic}'s policy allows cross account access to the following AWS accounts: [{AwsSnsTopic.CrossAccountFindings}]. Unauthorized access to a topic can lead to abuse of the SNS service by a malicious party, by sending an excessive amount of notifications and causing additional billing. Use the SNS topic's policy in order to restrict who can access that topic.

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  Recommended Mitigation

  It is recommended to set the SNS topic's policy to provide access to trusted AWS accounts only. For more information: <a href="https://docs.aws.amazon.com/IAM/latest/UserGuide/access_controlling.html" target="_blank" rel="noopener noreferrer">https://docs.aws.amazon.com/IAM/latest/UserGuide/access_controlling.html</a>