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Forwardslash is a hard-rated box (medium difficulty imo) in which we exploit an LFI in the web server to get access to some sensitive info that lets us SSH in. In our initial SSH session we exploit a SUID binary to obtain once again read access to a file with credentials that we use to move laterally to another user. From there we have sudo rights to access an encrypted luks image file, so we only have to bruteforce the key to then gain root and complete the machine.
Player2 was a challenging but very fun box by MrR3boot and b14ckh34rt. The highlight of the box for me is the finale 2.29 heap pwn! In my opinion, if there were no unintended routes, this would have been by far the hardest box so far, but some of these alternative solutions were never patched.
Albatross This was a misc pyjail golf challenge.