The Photon operating system must configure sshd to disable environment processing.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| medium | V-256548 | SRG-OS-000480-GPOS-00227 | PHTN-30-000079 | SV-256548r1051424_rule | 2024-12-16 | 1 |
Description
Enabling environment processing may enable users to bypass access restrictions in some configurations and must therefore be disabled.
ℹ️ Check
At the command line, run the following command:
#sshd -T|&grep -i PermitUserEnvironment
Expected result:
PermitUserEnvironment no
If the output does not match the expected result, this is a finding.
✔️ Fix
Navigate to and open:
/etc/ssh/sshd_config
Ensure the "PermitUserEnvironment" line is uncommented and set to the following:
PermitUserEnvironment no
At the command line, run the following command:
# systemctl restart sshd.service