Details

SSH protocol version 1 suffers from design flaws that result in security vulnerabilities and should not be used. Only SSH protocol version 2 connections should be permitted.

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’:

Add or correct the following line in ‘/etc/ssh/sshd_config’:

Protocol 2

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-17(2)
• CAT|I
• CCI|CCI-000068
• Rule-ID|SV-207612r378610_rule
• STIG-ID|ESXI-65-000011
• STIG-Legacy|SV-104055
• STIG-Legacy|V-93969
• Vuln-ID|V-207612

Source

• Tenable.com/audits