Detections
Analytics
ESXI-06-000025 - The SSH daemon must not permit tunnels.
Information
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 ACLs.Solution
To set the PermitTunnel setting, 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_VMware_vSphere_6-0_ESXi_V1R5_STIG.zip
Item Details
Audit Name: DISA VMware vSphere ESXi 6.0 STIG v1r5 Unix
Category: CONFIGURATION MANAGEMENT
References: 800-53|CM-6, CAT|II, CCI|CCI-000366, Group-ID|V-63219, Rule-ID|SV-77709r1_rule, STIG-ID|ESXI-06-000025, Vuln-ID|V-63219
Plugin: Unix
Control ID: 72c764ea13c2da050243da7f538bdca9abe5f042566bad51be573900c3f84c18