vishwaCTF 2021: Git Up and Dance | szymanski.ninja

Git Up and Dance

Category: General

480 points

You gotta git up and maybe dance a little back and forth to get the desired result

file: git_up_and_dance.zip

Solution

unzip git_up_and_dance.zip

Archive:  git_up_and_dance.zip
   creating: git up and dance/
   creating: git up and dance/.git/
   creating: git up and dance/.git/info/
  inflating: git up and dance/.git/info/exclude  
   creating: git up and dance/.git/hooks/
  inflating: git up and dance/.git/hooks/pre-applypatch.sample  
  inflating: git up and dance/.git/hooks/pre-receive.sample  
  inflating: git up and dance/.git/hooks/commit-msg.sample  
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  inflating: git up and dance/.git/hooks/pre-merge-commit.sample  
  inflating: git up and dance/.git/hooks/update.sample  
  inflating: git up and dance/.git/hooks/pre-push.sample  
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   creating: git up and dance/.git/branches/
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   creating: git up and dance/.git/refs/
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   creating: git up and dance/.git/objects/
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   creating: git up and dance/.git/objects/87/
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   creating: git up and dance/.git/objects/1f/
  inflating: git up and dance/.git/objects/1f/bd01e43e2edcafc29ddd7066695507e43df6b9  
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   creating: git up and dance/.git/objects/d2/
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   creating: git up and dance/.git/objects/c4/
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   creating: git up and dance/.git/objects/f1/
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   creating: git up and dance/.git/objects/57/
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   creating: git up and dance/.git/objects/21/
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  inflating: git up and dance/.git/index  
  inflating: git up and dance/.git/COMMIT_EDITMSG  
  inflating: git up and dance/.git/config  
  inflating: git up and dance/.git/ORIG_HEAD  
   creating: git up and dance/.git/logs/
  inflating: git up and dance/.git/logs/HEAD  
   creating: git up and dance/.git/logs/refs/
   creating: git up and dance/.git/logs/refs/heads/
  inflating: git up and dance/.git/logs/refs/heads/master  
  inflating: git up and dance/index.html  
  inflating: git up and dance/reset.6b91d48b.css  
  inflating: git up and dance/konga.92cb31af.mp3  
  inflating: git up and dance/style.e5beaf9c.css  
  inflating: git up and dance/workspace.a4362daf.js  
   creating: git up and dance/.vscode/
  inflating: git up and dance/.vscode/settings.json

cd git\ up\ and\ dance/
grep CTF *

grep: konga.92cb31af.mp3: binary file matches
workspace.a4362daf.js:            // This is not the flag vishwaCTF{d4nc3ing_4nd_gitup}

Ok, it wasn’t a flag. So let’s check what’s in git log. There was one obviously interesting commit.

commit acd2ccc03ddafc1c838adbb3e2d3835d7656777a
Merge: 83237fb 161e271
Author: Sohan <[email protected]>
Date:   Wed Mar 10 23:21:23 2021 +0530

    Uhh ohh, there was a conflict from flagfeature branch! Fixed that, now I have to write it again

Let’s give it a try.

git checkout acd2ccc03ddafc1c838adbb3e2d3835d7656777a
grep CTF *

grep: konga.92cb31af.mp3: binary file matches
workspace.a4362daf.js:                        // This is not the flag vishwaCTF{d4nc3ing_4nd_gitup}
workspace.a4362daf.js:                        // This is the flag vishwaCTF{d4nc3_4nd_giitupp}

Flag

vishwaCTF{d4nc3_4nd_giitupp}