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Hi! So, the program print me a Flag length is 32. As I understand call strlen convert my flag to string of length. So, I want to remove that part call strlen or somehow avoid it (maybe I'm not right at all, because I really bad in assembly and RE, it's my first CTF and what are your options)

  • Hi and welcome to RE.SE. So you want to patch the binary? In IDA you first need to enable the respective menu item. Alternatively you can use other tools to achieve the same.
    – 0xC0000022L
    Jul 30 '19 at 7:12

I changed call strlen to call printf and got my flag. I am so happy and proud of myself.

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