STIGQter: STIG Summary: VMware vSphere 7.0 vCenter Appliance Photon OS Security Technical Implementation Guide Version: 1 Release: 4 Benchmark Date: 30 Jan 2025:

The Photon operating system must be configured to protect the Secure Shell (SSH) public host key from unauthorized modification.

DISA Rule

SV-256577r991589_rule

Vulnerability Number

V-256577

Group Title

SRG-OS-000480-GPOS-00227

Rule Version

PHTN-30-000108

Severity

CAT II

CCI(s)

• CCI-000366 - Implement the security configuration settings.

Weight

10

Fix Recommendation

At the command line, run the following commands for each returned file:

# chmod 644 <file>
# chown root:root <file>

Check Contents

At the command line, run the following command:

# stat -c "%n permissions are %a and owned by %U:%G" /etc/ssh/*key.pub

Expected result:

/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.

Vulnerability Number

V-256577

Documentable

False

Rule Version

PHTN-30-000108

Severity Override Guidance

At the command line, run the following command:

# stat -c "%n permissions are %a and owned by %U:%G" /etc/ssh/*key.pub

Expected result:

/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.

Check Content Reference

M

Target Key

5520