Official discussion thread for Bad grades. Please do not post any spoilers or big hints.
Hi, I solved the challenge but I’m not sure it was not using the intended way. If someone that completed the challenge could DM me, that would be appreciated.
Hi, I can’t see the path to solution, what would be the objective? is it RCE?
I mean I can l**k the c****y but how to use it then? I’m suspecting TCB/TLS has something to do with this.
Any nudges?
Ok, definitely overthought this one. Clever trick, you ■■■■■■■, but now I know.
Since the forum thread has no love, I’ll leave a nudge for the future adventurers:
Think easy, out of the box. If you can’t fight them, join them.
Cool challenge, learned a new trick
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The challenge can be a lil difficult if you don’t know a specific way around a commonly used function.
HINT: Research about the function and discover what passes and what doesn’t. Once you find that, you can jump over the wall to get the treasure 
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I’m finding discrepencies with the libc version provided. Everything worked up until the final call: invalid address: xxx, so that tells me the library provided isn’t right, or something was updated (?)
No clue what’s going on.