The Photon operating system must configure Secure Shell (SSH) to disallow HostbasedAuthentication.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| high | V-258857 | SRG-OS-000480-GPOS-00229 | PHTN-40-000188 | SV-258857r991591_rule | 2024-07-11 | 2 |
Description
SSH trust relationships enable trivial lateral spread after a host compromise and therefore must be explicitly disabled.
ℹ️ Check
At the command line, run the following command to verify the running configuration of sshd:
# sshd -T|&grep -i HostbasedAuthentication
Example result:
hostbasedauthentication no
If "HostbasedAuthentication" is not set to "no", this is a finding.
✔️ Fix
Navigate to and open:
/etc/ssh/sshd_config
Ensure the "HostbasedAuthentication" line is uncommented and set to the following:
HostbasedAuthentication no
At the command line, run the following command:
# systemctl restart sshd.service