If you can write to the S3 bucket, but the bucket is not directly web-readable, check if a Lambda function processes the upload.
In the world of cloud penetration testing, if AWS is the castle, is the vault with a sticky lock. Misconfigured S3 buckets have been responsible for some of the biggest data breaches in history, exposing millions of records from Fortune 500 companies. hacktricks aws s3
"Version": "2012-10-17", "Statement": [
While S3 is a highly secure service, misconfigurations can lead to data exposure. Here are some common mistakes: If you can write to the S3 bucket,
# Check if bucket exists and is accessible aws s3 ls s3://bucket-name if AWS is the castle
"Effect": "Allow", "Principal": "AWS": "arn:aws:iam::victim:user/hacker", "Action": "s3:*", "Resource": "arn:aws:s3:::bucketname/*"