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The SUSE operating system must limit the number of concurrent sessions to 10 for all accounts and/or account types.


Overview

Finding ID Version Rule ID IA Controls Severity
V-234868 SLES-15-020020 SV-234868r877399_rule Low
Description
SUSE operating system management includes the ability to control the number of users and user sessions that utilize a SUSE operating system. Limiting the number of allowed users and sessions per user is helpful in reducing the risks related to Denial-of-Service (DoS) attacks. This requirement addresses concurrent sessions for information system accounts and does not address concurrent sessions by single users via multiple system accounts. The maximum number of concurrent sessions should be defined based on mission needs and the operational environment for each system.
STIG Date
SUSE Linux Enterprise Server 15 Security Technical Implementation Guide 2022-12-07

Details

Check Text ( C-38056r618873_chk )
Verify the SUSE operating system limits the number of concurrent sessions to 10 for all accounts and/or account types by running the following command:

> grep "maxlogins" /etc/security/limits.conf

The result must contain the following line:

* hard maxlogins 10

If the "maxlogins" item is missing, the line does not begin with a star symbol, or the value is not set to "10" or less, this is a finding.
Fix Text (F-38019r618874_fix)
Configure the SUSE operating system to limit the number of concurrent sessions to "10" or less for all accounts and/or account types.

Add the following line to the file "/etc/security/limits.conf":

* hard maxlogins 10