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V-256588

CAT II (Medium)

The Photon operating system must configure sshd to restrict LoginGraceTime.

Rule ID

SV-256588r991589_rule

STIG

VMware vSphere 7.0 vCenter Appliance Photon OS Security Technical Implementation Guide

Version

V1R4

CCIs

CCI-000366

Discussion

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.

Check Content

At the command line, run the following command:

# sshd -T|&grep -i LoginGraceTime

Expected result:

logingracetime 30

If the output does not match the expected result, this is a finding.

Fix Text

Navigate to and open:

/etc/ssh/sshd_config

Ensure the "LoginGraceTime" line is uncommented and set to the following:

LoginGraceTime 30

At the command line, run the following command:

# systemctl restart sshd.service