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XCCDF
Guide to the Secure Configuration of Ubuntu 22.04
Services
SSH Server
Verify Permissions on SSH Server Private *_key Key Files
Verify Permissions on SSH Server Private *_key Key Files
An XCCDF Rule
Details
Profiles
Prose
Verify Permissions on SSH Server Private *_key Key Files
Medium Severity
SSH server private keys - files that match the
/etc/ssh/*_key
glob, have to have restricted permissions. If those files are owned by the
root
user and the
root
group, they have to have the
0600
permission or stricter.