SLES-12-010120 - The SUSE operating system must limit the number of concurrent sessions to 10 for all accounts and/or account types.

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Information

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.

Solution

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 '/etc/security/limits.conf' or /etc/limits.d/*.conf file:

* hard maxlogins 10

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_SLES_12_V2R9_STIG.zip

Item Details

References: CAT|III, CCI|CCI-000054, Rule-ID|SV-217113r877399_rule, STIG-ID|SLES-12-010120, STIG-Legacy|SV-91765, STIG-Legacy|V-77069, Vuln-ID|V-217113

Plugin: Unix

Control ID: 0e641ef19f00861b4ed1edef1b8d185b2a6cf49ec6edea543a82cd079610b8e1