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Check: GEN005536

SUSE Linux Enterprise Server v11 for System z STIG: GEN005536 (in versions v1 r12 through v1 r9)

Title

The SSH daemon must perform strict mode checking of home directory configuration files. (Cat II impact)

Discussion

If other users have access to modify user-specific SSH configuration files, they may be able to log into the system as another user.

Check Content

Check the SSH daemon configuration for the StrictModes setting. # grep -i StrictModes /etc/ssh/sshd_config | grep -v '^#' If the setting is not present, or not set to "yes", this is a finding.

Fix Text

Edit the /etc/ssh/sshd_config file and add or edit the "StrictModes" setting value to "yes". Restart the SSH daemon. # /sbin/service sshd restart

Additional Identifiers

Rule ID: SV-46098r2_rule

Vulnerability ID: V-22485

Group Title: GEN005536

Expert Comments

Expert comments are only available to logged-in users.

CCIs

CCIs tied to check.

Number	Definition
CCI-000225	The organization employs the concept of least privilege, allowing only authorized accesses for users (and processes acting on behalf of users) which are necessary to accomplish assigned tasks in accordance with organizational missions and business functions.

Controls

Controls tied to check. These are derived from the CCIs shown above.

Number	Title
AC-6	Least Privilege