Detections
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1.231 RHEL-09-255145

Information

RHEL 9 SSH daemon must not allow rhosts authentication.

GROUP ID: V-258005
RULE ID: SV-258005r1045069

SSH trust relationships mean a compromise on one host can allow an attacker to move trivially to other hosts.

Solution

Configure the SSH daemon to not allow rhosts authentication.

Add the following line to "/etc/ssh/sshd_config" or to a file in "/etc/ssh/sshd_config.d", or uncomment the line and set the value to "yes":

IgnoreRhosts yes

The SSH service must be restarted for changes to take effect:

$ sudo systemctl restart sshd.service

See Also

https://workbench.cisecurity.org/benchmarks/22008

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-6b., CAT|II, CCI|CCI-000366, Rule-ID|SV-258005r1045069_rule, STIG-ID|RHEL-09-255145, Vuln-ID|V-258005

Plugin: Unix

Control ID: 1cb3eae5bdff42f2474f07eea5ecd76ceb0cacf3b820e94c63f63387851d9c7f