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The SSH daemon must not permit user environment settings.


Overview

Finding ID Version Rule ID IA Controls Severity
V-38616 RHEL-06-000241 SV-50417r1_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 2018-03-01

Details

Check Text ( C-46175r1_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-43565r1_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