The Photon operating system must configure sshd to disable X11 forwarding.
An XCCDF Rule
Description
<VulnDiscussion>X11 is an older, insecure graphics forwarding protocol. It is not used by Photon and should be disabled as a general best practice to limit attack surface area and communication channels.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>
- ID
- SV-256549r887321_rule
- Severity
- Medium
- References
- Updated
Remediation - Manual Procedure
Navigate to and open:
/etc/ssh/sshd_config
Ensure the "X11Forwarding" line is uncommented and set to the following: