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The SSH daemon must ignore .rhosts files.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-63193 | ESXI-06-000012 | SV-77683r1_rule | Medium |
| Description |
|---|
| SSH trust relationships mean a compromise on one host can allow an attacker to move trivially to other hosts. |
| STIG | Date |
|---|---|
| VMware vSphere ESXi 6.0 Security Technical Implementation Guide | 2017-07-11 |
Details
| Check Text ( C-63927r1_chk ) |
|---|
| To verify how the SSH daemon's "IgnoreRhosts" option is set, run the following command: # grep -i "^IgnoreRhosts" /etc/ssh/sshd_config If there is no output or the output is not exactly "IgnoreRhosts yes", this is a finding. |
| Fix Text (F-69111r1_fix) |
|---|
| SSH can emulate the behavior of the obsolete rsh command in allowing users to enable insecure access to their accounts via ".rhosts" files. Add or correct the following line in "/etc/ssh/sshd_config": IgnoreRhosts yes |