I have created a new S3 bucket and I am following the below tutorial to host a static website. https://docs.aws.amazon.com/AmazonS3/latest/userguide/HostingWebsiteOnS3Setup.html#step3-edit-block-public-access
However when it comes to setting the bucket policy, it states that the root user has no access to manage bucket policy. If I follow the links and traverse to the IAM console, there are no other users but me the root user. How can the root user grant himself the bucket permissions?
It wont allow setting a bucket policy if you have not cleared the Block All Public Access button. I had not cleared that and it was resulting in this invalid permissions error.
Related
I got accidentally locked out of the AWS S3 bucket by not meeting certain conditions. I accidentally set bucket policies that explicitly deny access to any requests outside the allowed IP addresses. Now I am not able to either list objects, view the permissions, or anything inside the bucket and completely locked out of it.
How can I regain access to the bucket?
Here are some of the error screenshots:
Insufficient Permissions to list oBjects for a bucket while trying to delete the bucket
Objects Page
Permission Page
You can do this as a root user as explained in the following AWS docs:
I accidentally denied everyone access to my Amazon S3 bucket. How do I regain access?
I've logged into AWS account as root user. But I'm unable to access some of the buckets in AWS. They are not showing in the S3 Console. I've accessed them by submitting the bucket name in the url
For example let's call the bucket unaccessible-bucket
https://s3.console.aws.amazon.com/s3/buckets/unaccessible-bucket/?region=us-east-1&tab=overview
If I navigates to Permissions > Bucket Policy I'm seeing notice Access denied, I'm unable to download the files. I'm unable to change the policy. I've tried with AWS CLI also.
Can someone please tell me how to edit the policy.
As per our organisation requirement,
We have to add two new IAM users..
For one user...We have to grant access to all buckets including this unaccessible-bucket.
For other user...We have to grant access to only this unaccessible-bucket.
Please check the screenshot
Many Thanks.
Assuming that you are logged into the AWS Console as the root user.
If you cannot see an S3 bucket in the AWS console, then you do not own the bucket and it is owned by another account.
If you can see the bucket in the console then you own the bucket. If you cannot access the contents of the bucket then you will need to edit the S3 Bucket Policy and add the root user as a principal. Replace the account number with your own.
Add this statement (or modify) to your S3 Bucket Policy:
"Principal": { "AWS": "arn:aws:iam::123456789012:root" }
I have made an explicit deny policy for all users on s3 bucket, so now not able to change the policy.
Can root user delete that policy ?
Root user have always an access to change the policies if anything goes wrong ?
Correct. The AWS root user has all permissions on the account. Login as that user and reset or delete the incorrect policy.
I was trying few things with aws s3 bucket policy and the documentation for put-bucket-policy says that the user should have PutBucketPolicy on the bucket and should be the owner.
I do not understand the use of PutBucketPolicy permission then.
Also is the bucket owner given a default PutBucketPolicy permission on his bucket?
http://docs.aws.amazon.com/AmazonS3/latest/API/RESTBucketPUTpolicy.html
The confusion here, I suspect, is related to the fact that users don't own buckets. The "owner" of a bucket is an individual AWS account.
You can't successfully grant PutBucketPolicy to any user in a different AWS account -- only your own account's user(s).
There's an illusion of circular logic here: How can I set a bucket policy... allowing myself to set the bucket policy... unless I am already able to set the bucket policy... which would make it unnecessary to set a bucket policy allowing me to set the bucket policy?
This is not as it seems: the problem is resolved by the fact that IAM user policies can grant a user permission to set the bucket policy, and the root account can do this by default -- which is why you should not use your root account credentials routinely: they are too privileged, if they fall into the wrong hands.
In our S3 configuration we have a bucket that ended up without any permissions, which I reckon my colleague deleted.
Now, we cannot read this bucket, I cannot add permissions to it using the management console, selecting grantee and the permission, as it says "Sorry! You do not have permissions to view this bucket.", When I click on "Add Bucket policy", it opens the dialog which says "Loading" and it keeps loading forever.
I've tried to use aws s3 and aws s3api to grand permission and/or delete the bucket with no success.
I want to either delete this bucket or change it's permissions.
EDIT: We also noticed that the bucket has no owner.
In the Amazon S3 Management Console:
Select the bucket (don't click on its name, just click the line it is on)
Go to the Properties pane on the right
Expand the Permissions section
If there is no line displayed, click Add more permissions, then select the Grantee (possibly your account name?) and tick some permission boxes
These permissions are on the Bucket itself.
Permissions to list the contents of an Amazon S3 bucket are normally granted via Identity and Access Management (IAM) rather than a bucket policy. Traditionally, bucket policies are used to grant access to objects within a bucket.
From your description, it appears that there is no bucket policy in place, which is perfectly okay. All new buckets have no bucket policy anyway.
If the above fix doesn't work, you should check your permissions in IAM to see what you are permitted to do in Amazon S3:
Is there a policy granting you access to everything in S3 (s3:*), or at least a policy granting you access to this bucket?
Is there a policy that is explicitly denying access to this bucket? (Deny overrides Allow)