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V-256395

CAT III (Low)

The ESXi host Secure Shell (SSH) daemon must set a timeout interval on idle sessions.

Rule ID

SV-256395r959010_rule

STIG

VMware vSphere 7.0 ESXi Security Technical Implementation Guide

Version

V1R4

CCIs

CCI-000366

Discussion

Automatically logging out idle users guards against compromises via hijacked administrative sessions.

Check Content

From an ESXi shell, run the following command:

# /usr/lib/vmware/openssh/bin/sshd -T|grep clientaliveinterval

Expected result:

clientaliveinterval 200

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

Fix Text

From an ESXi shell, add or correct the following line in "/etc/ssh/sshd_config":

ClientAliveInterval 200