The ESXi host Secure Shell (SSH) daemon must set a timeout interval on idle sessions.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| low | V-256395 | SRG-OS-000480-VMM-002000 | ESXI-70-000027 | SV-256395r959010_rule | 2025-02-11 | 1 |
| Description |
|---|
| Automatically logging out idle users guards against compromises via hijacked administrative sessions. |
| ℹ️ Check |
|---|
| From an ESXi shell, run the following command: # /usr/lib/vmware/openssh/bin/sshd -T|grep clientaliveinterval Expected result: clientaliveinterval 200 If the output does not match the expected result, this is a finding. |
| ✔️ Fix |
|---|
| From an ESXi shell, add or correct the following line in "/etc/ssh/sshd_config": ClientAliveInterval 200 |