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flAWS - Level 5
AWS allows you to make snapshots of EC2's and databases (RDS). The main purpose for that is to make backups, but people sometimes use snapshots to get access back to their own EC2's when they forget the passwords. This also allows attackers to get access to things. Snapshots are normally restricted to your own account, so a possible attack would be an attacker getting access to an AWS key that allows them to start/stop and do other things with EC2's and then uses that to snapshot an EC2 and spin up an EC2 with that volume in your environment to get access to it. Like all backups, you need to be cautious about protecting them.
This EC2 has a simple HTTP only proxy on it. Here are some examples of it's usage:
See if you can use this proxy to figure out how to list the contents of the level6 bucket at level6-cc4c404a8a8b876167f5e70a7d8c9880.flaws.cloud that has a hidden directory in it.
Need a hint? Go to Hint 1