The Red Hat Enterprise Linux operating system must be configured so that the SSH daemon does not allow authentication using known hosts authentication.
An XCCDF Rule
Description
Configuring this setting for the SSH daemon provides additional assurance that remote logon via SSH will require a password, even in the event of misconfiguration elsewhere.
- ID
- SV-204593r603261_rule
- Version
- RHEL-07-040380
- Severity
- Medium
- References
- Updated
Remediation Templates
A Manual Procedure
Configure the SSH daemon to not allow authentication using known hosts authentication.
Add the following line in "/etc/ssh/sshd_config", or uncomment the line and set the value to "yes":
IgnoreUserKnownHosts yes
The SSH service must be restarted for changes to take effect.