Check: PHTN-67-000085
VMware vSphere 6.7 Photon OS STIG:
PHTN-67-000085
(in versions v1 r6 through v1 r1)
Title
The Photon operating system must configure sshd to disable X11 forwarding. (Cat II impact)
Discussion
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.
Check Content
At the command line, execute the following command: # sshd -T|&grep -i X11Forwarding Expected result: X11Forwarding no If the output does not match the expected result, this is a finding.
Fix Text
Open /etc/ssh/sshd_config with a text editor. Ensure that the "X11Forwarding" line is uncommented and set to the following: X11Forwarding no At the command line, execute the following command: # service sshd reload
Additional Identifiers
Rule ID: SV-239156r675276_rule
Vulnerability ID: V-239156
Group Title: SRG-OS-000480-GPOS-00227
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-000366 |
The organization implements the security configuration settings. |
Controls
Number | Title |
---|---|
CM-6 |
Configuration Settings |