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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 | ECSC-1 | 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 | 2015-03-09 |
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. |