The Photon operating system must configure sshd to limit the number of allowed login attempts per connection.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| medium | V-256557 | SRG-OS-000480-GPOS-00227 | PHTN-30-000088 | SV-256557r991589_rule | 2024-12-16 | 1 |
| Description |
|---|
| By setting the login attempt limit to a low value, an attacker will be forced to reconnect frequently, which severely limits the speed and effectiveness of brute-force attacks. |
| ℹ️ Check |
|---|
| At the command line, run the following command: # sshd -T|&grep -i MaxAuthTries Expected result: MaxAuthTries 6 If the output does not match the expected result, this is a finding. |
| ✔️ Fix |
|---|
| Navigate to and open: /etc/ssh/sshd_config Ensure the "MaxAuthTries" line is uncommented and set to the following: MaxAuthTries 6 At the command line, run the following command: # systemctl restart sshd.service |