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V-217277

CAT II (Medium)

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

Rule ID

SV-217277r991589_rule

STIG

SLES 12 Security Technical Implementation Guide

Version

V3R2

CCIs

SV-92163

Discussion

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.

Check Content

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

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