"Ensure that S3 Buckets are configured with 'Block public access'" means that S3 buckets in an AWS environment have been configured with a setting that prevents any public access to the data stored in them. By enabling the "Block public access" setting, organizations can better secure their data stored in S3 buckets and reduce the risk of unauthorized access. The "Block public access" setting consists of four different options that can be enabled, each providing a different level of security. These include: Block public access to buckets and objects granted through new access control lists (ACLs): Prevents new public access through bucket or object-level ACLs. Block public access to buckets and objects granted through any access control lists (ACLs): Prevents both new and existing public access through bucket or object-level ACLs. Block public access to buckets and objects granted through new public bucket or access point policies: Prevents new public access through public bucket policies or access point policies. Block public and cross-account access to buckets and objects through any public bucket or access point policies: Prevents both new and existing public access through public bucket policies or access point policies, including cross-account access. Enabling "Block public access" for S3 buckets is a critical security control that can help ensure that data is not inadvertently exposed to the public. By following this best practice, organizations can better secure their data in the AWS environment and reduce the risk of data breaches and other security incidents.
To ensure that S3 buckets are configured with "Block public access," follow the below remediation steps:
This will block all public access to the S3 bucket and ensure that only authorized users can access the data.
