The Photon operating system must configure sshd to restrict LoginGraceTime.
An XCCDF Rule
Description
By default, sshd unauthenticated connections are left open for two minutes before being closed. This setting is too permissive as no legitimate login would need such an amount of time to complete a login. Quickly terminating idle or incomplete login attempts will free resources and reduce the exposure any partial logon attempts may create.
- ID
- SV-256588r991589_rule
- Version
- PHTN-30-000120
- Severity
- Medium
- References
- Updated
Remediation Templates
A Manual Procedure
Navigate to and open:
/etc/ssh/sshd_config
Ensure the "LoginGraceTime" line is uncommented and set to the following: