I'm getting an Access Denied error with Amazon S3 and can't figure out why.
My settings are as follows:
STATIC_URL = 'http://s3.amazonaws.com/%s/' % AWS_STORAGE_BUCKET_NAME
What would cause an access denied error? I have verified that my keys are correct.
The URL you show above would resolve to a bucket within S3. In order to access that bucket successfully with such a URL, the permissions on the bucket would have to grant 'public-read' access to the bucket. In addition, each object or file within the bucket would have to grant 'public-read' access, as well.
Do you want the bucket and all content within the bucket to be readable by anyone? If so, make sure the permissions are set appropriately. Note, however, that granting 'public-read' to the bucket itself will allow anyone to list the contents of the bucket. That's usually unnecessary and probably should be avoided.
Also note that the keys (I assume you mean your AWS access key and secret key) only apply when you are accessing S3 via the API. If you simply access it with the URL via a browser, the credentials are not used in the request.
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'm trying to access a bucket via cross account reference, the connection is established, but the put/list permissions are set on a specific directory (folder) i.e. bucketname/folder_name/*
s3 = boto3.client('s3')
s3.upload_file("filename.csv","bucketname","folder_name/file.csv"
,ExtraArgs={'ACL':'bucket-owner-full-control'})
Not sure how do I allow the same via code, it throws access denied on both list/put. Nothing wrong with permissions as such, have verified the access via awscli, it works.
let me know if i'm missing something here, thanks!
There was an issue with the assumed role, followed the documentation as mentioned here https://docs.aws.amazon.com/IAM/latest/UserGuide/id_roles_use_switch-role-api.html along with the code mentioned above.
I found an issue with a S3 bucket.
The bucket don't have any ACL associated, and the user that create the bucket was deleted.
How it's possible add some ACL in the bucket to get the control back?
For any command using AWS CLI, the result are the same always: An error occurred (AccessDenied) when calling the operation: Access Denied
Also in AWS console the access is denied.
First things first , AccessDenied error in AWS indicates that your AWS user does not have access to S3 service , Get S3 permission to your IAM user account , if in case you had access to AWS S3 service.
The thing is since you are using cli make sure AWS client KEY and secret are still correctly in local.
Now the interesting use case :
You have access to S3 service but cannot access the bucket since the bucket had some policies set
In this case if user who set the policies left and no user was able to access this bucket, the best way is to ask AWS root account holder to change the bucket permissions
An IAM user with the managed policy named AdministratorAccess should be able to access all S3 buckets within the same AWS account. Unless you have applied some unusual S3 bucket policy or ACL, in which case you might need to log in as the account's root user and modify that bucket policy or ACL.
See Why am I getting an "Access Denied" error from the S3 when I try to modify a bucket policy?
I just posted this on a related thread...
https://stackoverflow.com/a/73977525/999943
https://aws.amazon.com/premiumsupport/knowledge-center/s3-bucket-owner-full-control-acl/
Basically when putting objects from the non-bucket owner, you need to set the acl at the same time.
--acl bucket-owner-full-control
Using C#, I am able to download files from the bucket just by knowing the bucket name and the file key (filename).
The file and bucket are set up to not be accessible publicly.
Once I do
GetObjectRequest request = new GetObjectRequest
{
BucketName = bucketName,
Key = keyName
};
Even though I have not provided access key or the secret key, I still have access to the file content.
Is there a way to not allow this?
#akiva is partially correct.
If you are running this on an ec2 instance, if that instance has a 'IAM role' associated with it, and if that role has access to the bucket, the application can access the bucket without the application providing credentials.
On a regular machine, or even on an ec2 instance that does not have an associated IAM role, credentials are often stored in the users .aws subdirectory in a credentials file.
if you're connecting from an EC2 server it sometimes has a configuration file that stores the credentials globally for you
If your code is on EC2 machine, it fetches the access key and secret key stored in the hidden .aws directory. Also, if this EC2 instance has an IAM role with suitable permissions, it can fetch the contents from your S3 bucket very well.
You might need to check the role associated with your EC2 instance in order to prevent the accessibility to your S3 bucket.
I am trying to access an S3 bucket that I don't own, but have been granted access to through access policy. The access policy says I can access with getObject, listObject anything from /* . I am guessing that allows me to access everything within the bucket. However, what is happening is that I am able to only access few files while not able to access other.
And I suspect these files are new files in the bucket that did not exist at the time of the acl being granted. Something is writing into that bucket with default acl. Should that be the cause of acls not taking effect and the access denied?