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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-22485 GEN005536 SV-40720r1_rule ECLP-1 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
AIX 6.1 SECURITY TECHNICAL IMPLEMENTATION GUIDE 2017-12-08

Details

Check Text ( C-39451r1_chk )
Check the SSH daemon configuration for the StrictModes setting.

# grep -i StrictModes /etc/ssh/sshd_config | grep -v '^#'

If the setting is present and set to "no", this is a finding. If the setting is not present or is set to "yes", this is not a finding.
Fix Text (F-34579r1_fix)
Edit the /etc/sshd/sshd_config file and remove the StrictModes setting or change the value of the StrictModes setting to "yes".