The SSH daemon must not permit user environment settings.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-218003	RHEL-06-000241	SV-218003r505923_rule		Low

Description
SSH environment options potentially allow users to bypass access restriction in some configurations.

STIG	Date
Red Hat Enterprise Linux 6 Security Technical Implementation Guide	2020-09-03

Details

Check Text ( C-19484r377024_chk )
To ensure users are not able to present environment daemons, run the following command: # grep PermitUserEnvironment /etc/ssh/sshd_config If properly configured, output should be: PermitUserEnvironment no If it is not, this is a finding.

Fix Text (F-19482r377025_fix)
To ensure users are not able to present environment options to the SSH daemon, add or correct the following line in "/etc/ssh/sshd_config": PermitUserEnvironment no