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rwctf2019/MoP: explain 114514 #16

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3 changes: 2 additions & 1 deletion rwctf2019/pwn_MoP/README.md
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Expand Up @@ -44,7 +44,8 @@ index 24765617cb..66c0402e74 100644
+#define PHP_VERSION "114514-realworld"
```

No idea what the `114514` in the version means. The DS_store is just a mac thing, but the `tttt.py` seems to be a remnant from a different CTF challenge?! (https://www.tuicool.com/articles/RNBJ7fE -- pythonginx). No idea why that file is there.
The `114514` in the version has no real function; it is a [Japanese internet meme "iiyokoiyo"](https://github.com/pwning/public-writeup/issues/15).
The DS_store is just a mac thing, but the `tttt.py` seems to be a remnant from a different CTF challenge?! (https://www.tuicool.com/articles/RNBJ7fE -- pythonginx). No idea why that file is there.

Anyways, we now know that the bug is a missing `ze_obj->filename = NULL`, which means that we either have UAF or double-free.

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