$ cat writeup.md…
$ cat writeup.md…
spbctf
Task: CIL-generated bytecode-VM pwn binary; a VM gate ('13' prefix + exactly four dots) guards a classic fgets stack overflow with no canary/no PIE. Solution: disassemble the 374-byte VM program, pass the gate with '13....', overflow at offset 64 and ret2win to fukc()->system(\"sh\").
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