Rating:
To make this easier to rev, you can compile the program with wat2wasm then decompile it to human readable code with the [ghidra plugin](https://github.com/nneonneo/ghidra-wasm-plugin). Once we can properly analyze the code, we can see that it's a simple program that will give hardcoded responses to certain inputs we pass it. There's a special `debug` command which prints with printf the address of the index variable for the index of a function table it uses. After toying around, we can see that we have a normal buffer overflow which allows us to overwrite these printf strings, so we can craft a printf string that overwrites the index to one that points to the `wassflag` function in the binary that prints the flag for us.
```python=
from pwn import *
p = remote("52.59.124.14", 5005)
p.sendlineafter(b"alone?", b"BBBBBBBBBBBBBBBBBBBBBBBBAAAAAAAAAA%n")
p.sendlineafter(b"AAAAAAAAAA", b"debug")
p.interactive()
```
