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The IDPS must limit the number of concurrent sessions for each account to an organizationally defined number.


Overview

Finding ID Version Rule ID IA Controls Severity
V-34520 SRG-NET-000053-IDPS-00047 SV-45362r1_rule Low
Description
This requirement addresses concurrent sessions for a given information system account and does not address concurrent sessions by a single user via multiple accounts. In many products, this value defaults to unlimited which leaves the device open to DoS attacks. An organizationally defined value should be configured. Limiting the number of concurrent sessions to the device per any given account mitigates the risk associated with a Denial of Service (DoS) attack.
STIG Date
Intrusion Detection and Prevention Systems (IDPS) Security Requirements Guide 2012-11-19

Details

Check Text ( C-42710r1_chk )
View the user account management screens.
Verify the number of concurrent sessions setting is not set to unlimited.
Verify the number of concurrent sessions is set to an organizationally defined value.

If the number of concurrent sessions for accounts is set to unlimited, this is a finding. If the number of concurrent sessions is not set to an organizationally defined value, this is a finding.
Fix Text (F-38758r1_fix)
Set the default concurrent sessions for user accounts to an organizationally defined value.