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RHEL-08-010830 - RHEL 8 must not allow users to override SSH environment variables.
Information
SSH environment options potentially allow users to bypass access restriction in some configurations.Solution
Configure RHEL 8 to allow the SSH daemon to not allow unattended or automatic logon to the system.Add or edit the following line in the "/etc/ssh/sshd_config" file:
PermitUserEnvironment no
The SSH daemon must be restarted for the changes to take effect. To restart the SSH daemon, run the following command:
$ sudo systemctl restart sshd.service
See Also
https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_RHEL_8_V2R7_STIG.zip
Item Details
Audit Name: DISA Red Hat Enterprise Linux 8 STIG v2r7
Category: CONFIGURATION MANAGEMENT
References: 800-53|CM-6b., CAT|II, CCI|CCI-000366, Rule-ID|SV-230330r1069305_rule, STIG-ID|RHEL-08-010830, Vuln-ID|V-230330
Plugin: Unix
Control ID: 7504293eb7713d75d4d5ae3f1d5173a88bb3a10a5bfccd10d8b49a4c56dc4ea1