Detections
Analytics
ESXI-70-000025 - The ESXi host Secure Shell (SSH) daemon must not permit tunnels.
Warning! Audit Deprecated
This audit has been deprecated and will be removed in a future update.
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OpenSSH has the ability to create network tunnels (layer 2 and layer 3) over an SSH connection. This function can provide similar convenience to a virtual private network (VPN) with the similar risk of providing a path to circumvent firewalls and network Access Control Lists (ACLs).Solution
From an ESXi shell, add or correct the following line in '/etc/ssh/sshd_config':PermitTunnel no
See Also
https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_VMW_vSphere_7-0_Y23M07_STIG.zip
Item Details
Audit Name: DISA STIG VMware vSphere 7.0 ESXi OS v1r2
References: CAT|II, CCI|CCI-000366, Rule-ID|SV-256393r885960_rule, STIG-ID|ESXI-70-000025, Vuln-ID|V-256393
Plugin: Unix
Control ID: 28efc13ccc331ef7eb252bf11f8bb8bd4279912078db022b80a8d4a332b87b06