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The SSH daemon must perform strict mode checking of home directory configuration files.


Overview

Finding ID Version Rule ID IA Controls Severity
V-63209 ESXI-06-000020 SV-77699r1_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 vSphere ESXi 6.0 Security Technical Implementation Guide 2017-07-11

Details

Check Text ( C-63943r1_chk )
To verify the StrictModes setting, run the following command:

# grep -i "^StrictModes" /etc/ssh/sshd_config

If there is no output or the output is not exactly "StrictModes yes", this is a finding.
Fix Text (F-69127r1_fix)
To set the StrictModes setting, add or correct the following line in "/etc/ssh/sshd_config":

StrictModes yes