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The SSH daemon must not allow rhosts RSA authentication.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-22487 | GEN005538 | SV-46105r2_rule | ECSC-1 | Medium |
| Description |
|---|
| 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. |
| STIG | Date |
|---|---|
| SUSE Linux Enterprise Server v11 for System z | 2015-10-20 |
Details
| Check Text ( C-43361r1_chk ) |
|---|
| 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 (F-39447r2_fix) |
|---|
| Edit the SSH daemon configuration and add or edit the "RhostsRSAAuthentication" setting value to "no". Restart the SSH daemon. # /sbin/service sshd restart |