The SSH daemon must not allow rhosts RSA authentication.

From Oracle Linux 5 Security Technical Implementation Guide

Associated with: CCI-000366

SV-64081r1_rule The SSH daemon must not allow rhosts RSA authentication.

Vulnerability discussion

If SSH permits rhosts RSA authentication, a user may be able to log in based on the keys of the host originating the request and not any user-specific authentication.

Check content

Check the SSH daemon configuration for the RhostsRSAAuthentication setting. # grep -i RhostsRSAAuthentication /etc/ssh/sshd_config | grep -v '^#' If the setting is set to "yes", this is a finding.

Fix text

Edit the SSH daemon configuration and add or edit the "RhostsRSAAuthentication" setting value to "no". Restart the SSH daemon. # /sbin/service sshd restart

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