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The ESXi host Secure Shell (SSH) daemon must set a timeout count on idle sessions.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-256394 | ESXI-70-000026 | SV-256394r885963_rule | Low |
| Description |
|---|
| Setting a timeout ensures that a user login will be terminated as soon as the "ClientAliveCountMax" is reached. |
| STIG | Date |
|---|---|
| VMware vSphere 7.0 ESXi Security Technical Implementation Guide | 2023-02-21 |
Details
| Check Text ( C-60069r885961_chk ) |
|---|
| From an ESXi shell, run the following command: # /usr/lib/vmware/openssh/bin/sshd -T|grep clientalivecountmax Expected result: clientalivecountmax 3 If the output does not match the expected result, this is a finding. |
| Fix Text (F-60012r885962_fix) |
|---|
| From an ESXi shell, add or correct the following line in "/etc/ssh/sshd_config": ClientAliveCountMax 3 |