S3 Bucket Should Not Allow WRITE Access to Authenticated Users
More Info:
S3 buckets should not allow WRITE access to AWS authenticated users through S3 ACLs.Risk Level
MediumAddress
SecurityCompliance Standards
CBP, HIPAATriage and Remediation
Remediation
Using Console
Using Console
Sure, here are the step by step instructions to remediate the S3 Bucket Should Not Allow WRITE Access to Authenticated Users misconfiguration for AWS using AWS console:
- Log in to your AWS Management Console.
- Go to the S3 service.
- Select the bucket that is misconfigured.
- Click on the “Permissions” tab.
- Click on “Bucket Policy”.
- Remove any policies that allow write access to authenticated users.
- You can also add a policy that explicitly denies write access to authenticated users.
- Click on “Save” to apply the changes.
Using CLI
Using CLI
To remediate the issue of S3 bucket allowing WRITE access to authenticated users in AWS using AWS CLI, follow the below steps:
-
Open the AWS CLI on your local machine and run the following command to list all the S3 buckets in your AWS account:
aws s3api list-buckets - Identify the S3 bucket that has WRITE access to authenticated users.
-
Run the following command to remove WRITE access for authenticated users on the identified S3 bucket:
aws s3api put-bucket-acl --bucket bucket-name --grant-write "uri=http://acs.amazonaws.com/groups/global/AuthenticatedUsers"Replacebucket-namewith the name of the identified S3 bucket. -
Run the following command to verify that authenticated users no longer have WRITE access to the S3 bucket:
aws s3api get-bucket-acl --bucket bucket-nameReplacebucket-namewith the name of the identified S3 bucket. - Verify that the remediation has worked successfully by attempting to write to the S3 bucket using an authenticated user. The attempt should now fail.
Using Python
Using Python
To remediate the misconfiguration “S3 Bucket Should Not Allow WRITE Access to Authenticated Users” in AWS using Python, you can follow these steps:
- First, you need to identify the S3 bucket that has WRITE access to authenticated users. You can use the following Python code to list all the S3 buckets and their ACLs:
- Once you have identified the bucket with WRITE access to authenticated users, you can update its ACL to remove the WRITE access. You can use the following Python code to remove WRITE access from authenticated users:
- Run the above code to remove WRITE access from authenticated users for the identified S3 bucket.