The ESXi host Secure Shell (SSH) daemon must disable port forwarding.
An XCCDF Rule
Description
<VulnDiscussion>While enabling Transmission Control Protocol (TCP) tunnels is a valuable function of sshd, this feature is not appropriate for use on the ESXi hypervisor.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>
- ID
- SV-256434r886083_rule
- Severity
- Medium
- References
- Updated
Remediation - Manual Procedure
From an ESXi shell, add or correct the following line in "/etc/ssh/sshd_config":
AllowTcpForwarding no