Check: PHTN-67-000115
VMware vSphere 6.7 Photon OS STIG:
PHTN-67-000115
(in versions v1 r6 through v1 r1)
Title
The Photon operating system must be configured to protect the SSH public host key from unauthorized modification. (Cat II impact)
Discussion
If a public host key file is modified by an unauthorized user, the SSH service may be compromised.
Check Content
At the command line, execute the following command: # stat -c "%n permissions are %a and owned by %U:%G" /etc/ssh/*key.pub Expected result: /etc/ssh/ssh_host_dsa_key.pub permissions are 644 and owned by root:root /etc/ssh/ssh_host_ecdsa_key.pub permissions are 644 and owned by root:root /etc/ssh/ssh_host_ed25519_key.pub permissions are 644 and owned by root:root /etc/ssh/ssh_host_rsa_key.pub permissions are 644 and owned by root:root If the output does not match the expected result, this is a finding.
Fix Text
At the command line, execute the following commands for each returned file: # chmod 644 <file> # chown root:root <file>
Additional Identifiers
Rule ID: SV-239186r675366_rule
Vulnerability ID: V-239186
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 |