Details

The warning message reinforces policy awareness during the logon process and facilitates possible legal action against attackers. Alternatively, systems whose ownership should not be obvious should ensure usage of a banner that does not provide easy attribution.

Solution

From an SSH session connected to the ESXi host, or from the ESXi shell, add or correct the following line in ‘/etc/ssh/sshd_config’:

Banner /etc/issue

Supportive Information

The following resource is also helpful.

• https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_VMW_vSphere_6-5_Y21M10_STIG.zip

This security hardening control applies to the following category of controls within NIST 800-53: Access Control.This control applies to the following type of system Unix.

References

• 800-53|AC-8a.
• CAT|II
• CCI|CCI-000048
• Rule-ID|SV-207610r378520_rule
• STIG-ID|ESXI-65-000009
• STIG-Legacy|SV-104051
• STIG-Legacy|V-93965
• Vuln-ID|V-207610

Source

• Tenable.com/audits