S3 Bucket Exploitation

Now that we have listed it, let’s come to the exploitation part.

You can host fixed assets, such as images and Javascript libraries using S3 buckets which have less-sensitive assets but the open upload policy allows an attacker to upload a custom Javascript library, which lets them serve malicious Javascript (such as a BeEF Hook) for all application users.
There are many more sharp things to get on S3 which can be a tough problem for a company which may include log files, usernames, passwords, database queries, etc.
 

Exploitation:

Step 1: So after running the following command I found a secret file

Step 2: And when we navigated to that file, we are finally able to solve the CTF
 

Step 3: Now finally we are done with exploiting the Level 1 and so we can move on to the level 2
 

Amazon S3 bucket is a user-friendly object repository, that is used for storing and recovering various data from anywhere on the web. As an Amazon Web Service (AWS), it allows creators to store, transfer, or process large amounts of data. The AWS offers a wide range of storage options: from simple static files to more complex applications like websites, mobile apps, machine learning algorithms, etc. 

Among all of them S3 stands for Simple Storage Service, it is object storage that is provided by AWS as a cloud service that will charge for only what you will use. Some of the advantages of Amazon S3 include creating buckets, storing data, downloading data, granting or denying permissions, etc. 

In this article, We will see how to keep your personal information private and secure. The Best VPN services offer a variety of options for you. 

Access Control Lists (ACLs):

Organizations don’t set ACLs properly and that is what becomes the main reason for the vulnerability of the S3 bucket. S3 access control lists are applied at the bucket level as well as at the object level, but it is best to set the ACLs on an object-by-object basis rather than just at a bucket-level or global level. There is some access control including the following set of approvals:

• READ
• WRITE
• READ_ACP
• WRITE_ACP
• FULL_CONTROL