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The system must be configured to limit how often keep-alive packets are sent.


Overview

Finding ID Version Rule ID IA Controls Severity
V-4113 WN08-SO-000041 SV-48125r1_rule Low
Description
This setting controls how often TCP sends a keep-alive packet in attempting to verify that an idle connection is still intact. A higher value could allow an attacker to cause a denial of service with numerous connections.
STIG Date
Windows 8/8.1 Security Technical Implementation Guide 2017-04-28

Details

Check Text ( None )
None
Fix Text (F-41262r1_fix)
Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "MSS: (KeepAliveTime) How often keep-alive packets are sent in milliseconds" to "300000 or 5 minutes (recommended)" or less.