Official Cosy Casino Discussion

Official discussion thread for Cosy Casino. Please do not post any spoilers or big hints.

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  • edited July 9

    I've got an exploit working against this binary running in a representative environment (i.e. same version of libc, ld-linux-x86-64, libpthread etc) but it's not working against the challenge server. The challenge server is also not behaving the same as the binary I've downloaded. E.g. the show_gems function doesn't appear to be included (or working), as it never prints out your current total in the menu. E.g. I never get anything like this over the network connection:

    [*] Current 💎: [70]

    However, the behaviour of the app shows that the gem count is maintained internally.

    [EDIT] I was being stupid. The show_gems function outputs to STDERR, which explains why I'm not seeing it on the output from the challenge server (which is only displaying STDOUT).

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