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

From VMware vRealize Operations Manager 6.x SLES Security Technical Implementation Guide

Associated with: CCI-000054

SV-99015r1_rule The SLES for vRealize must limit the number of concurrent sessions to ten for all accounts and/or account types.

Vulnerability discussion

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.

Check content

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

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

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