# Git Gud (100pts)

## Description

Jimmy has begun learning about Version Control Systems and decided it was a good time to put it into use for his person website. Show him how to Git Gud.

http://gitgud.tuctf.com

## Solution

The challenge gives a URL with apparently nothing useful. Due to the tile we thought about a git repo somewhere in this domain. We found it manually at:

http://http://gitgud.tuctf.com/.git

The biggest difficulty was to download the repo, sice `git clone` did not work. So we downloaded it recursively with:

$ wget -r http://gitgud.tuctf.com/.git

In the `.git/log` folder we could see that the flag was added with commit `4fa0acbccd0885dace2f111f2bd7a120abc0fb4e`:

However, before checking out into this commit, we needed to stash the changes:

$ git stash

Now we were able to:

$ git checkout 4fa0acbccd0885dace2f111f2bd7a120abc0fb4
HEAD is now at 4fa0acb... Added flag

Finally:

~~~
$ git show
commit 4fa0acbccd0885dace2f111f2bd7a120abc0fb4e
Author: Jimmy <[email protected]>
Date: Tue Nov 21 20:47:00 2017 +0000

Added flag

diff --git a/flag b/flag
new file mode 100644
index 0000000..1b8dce4
--- /dev/null
+++ b/flag
@@ -0,0 +1,2 @@
+
+TUCTF{D0nt_M4k3_G1t_Publ1c}
~~~

So, yeah, just don't do it :)

Original writeup (https://github.com/pogTeam/writeups/tree/master/2017/TUCTF/gitGud).