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In reply to whoarethey: Determine Who Can Log In to an SSH Server

Reader Samuel BF on 2023-01-11 at 23:08:

2 remarks for OSINT hackers :

- gitlab also lists public keys of users ( https://docs.gitlab.com/ee/api/users.html#list-ssh-keys-for-user ). It can make the database more comprehensive and may reveal matching between accounts on several platforms (de-anonymisation). I have not searched other forges.

- for GPG-backed SSH keys, you can retrieve SSH public key with --generate-ssh-key ( https://www.gnupg.org/faq/whats-new-in-2.1.html#sshexport ). Now, you have email addresses in your database.

All in all, these API represent a significant leak of PII !

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