The ESXi host Secure Shell (SSH) daemon must perform strict mode checking of home directory configuration files.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| medium | V-256389 | SRG-OS-000480-VMM-002000 | ESXI-70-000020 | SV-256389r959010_rule | 2025-02-11 | 1 |
Description
If other users have access to modify user-specific SSH configuration files, they may be able to log on the system as another user.
ℹ️ Check
From an ESXi shell, run the following command:
# /usr/lib/vmware/openssh/bin/sshd -T|grep strictmodes
Expected result:
strictmodes yes
If the output does not match the expected result, this is a finding.
✔️ Fix
From an ESXi shell, add or correct the following line in "/etc/ssh/sshd_config":
StrictModes yes