Git - Create a new remote branch out of an old commit

git checkout -b new_branch_name
git reset --hard <old_commit_id>
git push origin new_branch_name

if you want create a new branch from a specific commit, execute command git log or gitk, copy the id and execute command git checkout ID COMMIT, then commit and push. This link can help you.

There is a one-liner:

git push origin <id-of-commit>:refs/heads/<name-of-remote-branch>