RHEL 9 must not allow a noncertificate trusted host SSH logon to the system.
An XCCDF Rule
Description
<VulnDiscussion>SSH trust relationships mean a compromise on one host can allow an attacker to move trivially to other hosts.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>
- ID
- SV-257992r991591_rule
- Severity
- Medium
- References
- Updated
Remediation - Manual Procedure
To configure RHEL 9 to not allow a noncertificate trusted host SSH logon to the system add or modify the following line in "/etc/ssh/sshd_config".
HostbasedAuthentication no
Restart the SSH daemon for the settings to take effect: