HackBlue

Labs / SSH brute force

The setting that the drop-in overrides

sshd_config on edge-02 says passwords are off, yet password logins work. Find the drop-in that wins, the effective value, and the root login setting.

  • Terminal mission
  • Intermediate
  • 3 objectives
  • 0 of 3 solved

Briefing

An auditor reports that edge-02 accepts SSH passwords. The administrator points at sshd_config, which clearly says PasswordAuthentication no.

sshd uses the first value it reads for most options. The Include line at the top of sshd_config is read before anything below it. sshd -T prints the configuration sshd will actually use.

root@edge-02

edge-02 · SSH brute force

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