Finding ID | Version | Rule ID | IA Controls | Severity |
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V-207624 | ESXI-65-000023 | SV-207624r388482_rule | Medium |
Description |
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X11 forwarding over SSH allows for the secure remote execution of X11-based applications. This feature can increase the attack surface of an SSH connection. |
STIG | Date |
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VMware vSphere 6.5 ESXi Security Technical Implementation Guide | 2021-06-23 |
Check Text ( C-7879r364271_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 "^X11Forwarding" /etc/ssh/sshd_config If there is no output or the output is not exactly "X11Forwarding no", this is a finding. |
Fix Text (F-7879r364272_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": X11Forwarding no |