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The Red Hat Enterprise Linux operating system must be configured so that the SSH daemon does not allow authentication using rhosts authentication.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-72243 | RHEL-07-040350 | SV-86867r3_rule | Medium |
| 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. |
| STIG | Date |
|---|---|
| Red Hat Enterprise Linux 7 Security Technical Implementation Guide | 2019-09-25 |
Details
| Check Text ( C-72477r1_chk ) |
|---|
| Verify the SSH daemon does not allow authentication using known hosts authentication. To determine how the SSH daemon's "IgnoreRhosts" option is set, run the following command: # grep -i IgnoreRhosts /etc/ssh/sshd_config IgnoreRhosts yes If the value is returned as "no", the returned line is commented out, or no output is returned, this is a finding. |
| Fix Text (F-78597r2_fix) |
|---|
| 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": IgnoreRhosts yes |