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


Overview

Finding ID Version Rule ID IA Controls Severity
V-235010 SLES-15-040260 SV-235010r622137_rule Medium
Description
If other users have access to modify user-specific SSH configuration files, they may be able to log on to the system as another user.
STIG Date
SUSE Linux Enterprise Server 15 Security Technical Implementation Guide 2021-03-04

Details

Check Text ( C-38198r619299_chk )
Verify the SUSE operating system SSH daemon performs strict mode checking of home directory configuration files.

Check that the SSH daemon performs strict mode checking of home directory configuration files with the following command:

> sudo grep -i strictmodes /etc/ssh/sshd_config

StrictModes yes

If "StrictModes" is set to "no", is missing, or the returned line is commented out, this is a finding.
Fix Text (F-38161r619300_fix)
Configure the SUSE operating system SSH daemon performs strict mode checking of home directory configuration files.

Uncomment the "StrictModes" keyword in "/etc/ssh/sshd_config" and set the value to "yes":

StrictModes yes