The SSH daemon must perform strict mode checking of home directory configuration files.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| GEN005536-ESXI5-000110 | GEN005536-ESXI5-000110 | GEN005536-ESXI5-000110_rule | Medium |
| Description |
|---|
| If other users have access to modify user-specific SSH configuration files, they may be able to log into the system as another user. |
| STIG | Date |
|---|---|
| VMware ESXi v5 Security Technical Implementation Guide | 2013-01-15 |
Details
| Check Text ( C-GEN005536-ESXI5-000110_chk ) |
|---|
| Disable lock down mode. Enable the ESXi Shell. Login as root and execute the following command(s): # grep StrictModes /etc/ssh/sshd_config If "StrictModes" is set to "no" or the keyword/line is missing, this is a finding. Re-enable lock down mode. |
| Fix Text (F-GEN005536-ESXI5-000110_fix) |
|---|
| Disable lock down mode. Enable the ESXi Shell. Login as root and execute the following command(s): # vi /etc/ssh/sshd_config Add/modify the "StrictModes" keyword to "yes", i.e.; StrictModes= yes Re-enable lock down mode. |