The SLES for vRealize must limit the number of concurrent sessions to ten for all accounts and/or account types.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-239447	VROM-SL-000040	SV-239447r877399_rule		Low

Description
Operating system management includes the ability to control the number of users and user sessions that utilize an operating system. Limiting the number of allowed users and sessions per user is helpful in reducing the risks related to 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 upon mission needs and the operational environment for each system.

Description

Operating system management includes the ability to control the number of users and user sessions that utilize an operating system. Limiting the number of allowed users and sessions per user is helpful in reducing the risks related to 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 upon mission needs and the operational environment for each system.

STIG	Date
VMware vRealize Operations Manager 6.x SLES Security Technical Implementation Guide	2023-09-21

Details

Check Text ( C-42680r661790_chk )
Verify the SLES for vRealize limits the number of concurrent sessions to "10" for all accounts and/or account types with the following command: # grep maxlogins /etc/security/limits.conf \| grep -v '#' The default maxlimits should be set to a max of "10" or a documented site defined number: * hard maxlogins 10 If the default maxlimits is not set to "10" or the documented site defined number, this is a finding.

Check Text ( C-42680r661790_chk )

Verify the SLES for vRealize limits the number of concurrent sessions to "10" for all accounts and/or account types with the following command:

# grep maxlogins /etc/security/limits.conf | grep -v '#'

The default maxlimits should be set to a max of "10" or a documented site defined number:

* hard maxlogins 10

If the default maxlimits is not set to "10" or the documented site defined number, this is a finding.

Fix Text (F-42639r661791_fix)
Configure the SLES for vRealize to limit the number of concurrent sessions to "10" for all accounts and/or account types by using the following command: sed -i 's/\(^* hard maxlogins\)./ hard maxlogins 10/g' /etc/security/limits.conf