Gitcolombo – Extract And Analyze Contributors Info From Git Repos

OSINT tool to extract info about persons from git repositories: common names, emails, matches between different (as it may seems) accounts.

Using

1. Install git

2. Run:

   repos by nickname ./gitcolombo.py –nickname LubyRuffy”>

    # from any git url
    ./gitcolombo.py -u https://github.com/Kalanchyovskaia16/newlps
   
    # from directory, recursively
    ./gitcolombo.py -d ./newlps -r
   
    # from all GitHub personal/org repos by nickname
    ./gitcolombo.py --nickname LubyRuffy
   

For batch cloning from Gitlab and Bitbucket group repos you can use ghorg.

Output:

• verbose persons info

  • name
  • email
  • number of appearences as author/committer
  • other persons that person can be

• emails used for the same name

• different names for the same person

• general statistics

Details

[RUS] https://telegra.ph/Gitcolombo—OSINT-v-GitHub-03-02

What’s the difference between git author and committer?

TL;DR

• author wrote the code (make the patch)
• commiter commit it to the repo (rewrite history, make pull/merge requests…)

Nice explanation: https://stackoverflow.com/questions/18750808/difference-between-author-and-committer-in-git

Very often developers make inaccurate commits with the one name/email (e.g. work account), then change to the right (e.g. personal account) and make git commit --amend, but forget to change the author of the commit. This way we can use it for OSINT as match of names/emails from git history.

TODO

• Total statistics for repos in a directory
• Check different names for every email
• GitHub support: clone all repos from account/group
• GitHub support: api pagination
• GitHub support: extract links to accounts from commit info
• Exclude “system” accounts (e.g. [email protected])
• Probabilistic graph links based on same names/emails and Levenshtein distance
• Other popular git platforms: Gitlab, Bitbucket and also