The ESXi host SSH daemon must ignore .rhosts files.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-239268 | ESXI-67-000012 | SV-239268r674733_rule | Medium |
| Description |
|---|
| SSH trust relationships mean a compromise on one host can allow an attacker to move trivially to other hosts. SSH can emulate the behavior of the obsolete rsh command in allowing users to enable insecure access to their accounts via ".rhosts" files. |
| STIG | Date |
|---|---|
| VMware vSphere 6.7 ESXi Security Technical Implementation Guide | 2022-01-05 |
Details
| Check Text ( C-42501r674731_chk ) |
|---|
| From an SSH session connected to the ESXi host, or from the ESXi shell, 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-42460r674732_fix) |
|---|
| From an SSH session connected to the ESXi host, or from the ESXi shell, add or correct the following line in "/etc/ssh/sshd_config": Add or correct the following line in "/etc/ssh/sshd_config": IgnoreRhosts yes |