Finding ID | Version | Rule ID | IA Controls | Severity |
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V-239283 | ESXI-67-000028 | SV-239283r674778_rule | Medium |
Description |
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The SSH protocol has the ability to provide multiple sessions over a single connection without reauthentication. A compromised client could use this feature to establish additional sessions to a system without consent or knowledge of the user. |
STIG | Date |
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VMware vSphere 6.7 ESXi Security Technical Implementation Guide | 2022-01-05 |
Check Text ( C-42516r674776_chk ) |
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From an SSH session connected to the ESXi host, or from the ESXi shell, run the following command: # grep -i "^MaxSessions" /etc/ssh/sshd_config If there is no output or the output is not exactly "MaxSessions 1", this is a finding. |
Fix Text (F-42475r674777_fix) |
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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": MaxSessions 1 |