pwn
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Execute is a pwn challenge that requires us to write shellcode that bypasses the filter check. When we decompile the execute binary, we can see that there is a check function which will compare user input to an array of bad bytes. bad bytes:;Tbinsh\xf6\xd2\xc0_\xc9flag\x00 The bad bytes represent key parts of shell code execution, specifically…
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I recently started learning binary exploitation (pwn), and this challenge introduced me to several key concepts. I found it particularly interesting, so I wrote this blog post to explore the details more deeply and solidify my understanding. Table of contents Introduction Opening up the binary in binaryninja, we go through the code to find the…
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pamoutaf 