CCE-41614-9Platform: cpe:/o:microsoft:windows_10 | Date: (C)2016-09-23 (M)2023-07-04 |
Specify the 'MSS: (KeepAliveTime) How often keep-alive packets are sent' in milliseconds for KeepAliveTime
MSS: (KeepAliveTime) How often keep-alive packets are sent in milliseconds
Counter Measure:
Configure the MSS: (KeepAliveTime) How often keep-alive packets are sent in milliseconds (300,000 is recommended) entry to a value of 300000 or 5 minutes.
The possible values for this registry entry are:
? 1 through 0xFFFFFFFF. The default configuration is 7,200,000 (two hours).
In the SCE UI, the following list of options appears:
? 150000 or 2.5 minutes
? 300000 or 5 minutes (recommended)
? 600000 or 10 minutes
? 1200000 or 20 minutes
? 2400000 or 40 minutes
? 3600000 or 1 hour
? 7200000 or 2 hours (default value)
? Not Defined
Potential Impact:
Keep-alive packets are not sent by default by Windows. However, some applications may configure the TCP stack flag that requests keep-alive packets. For such configurations, you can lower this value from the default setting of two hours to five minutes to disconnect inactive sessions more quickly.
Parameter:
[keepalivetime]
Technical Mechanism:
(1) GPO: Computer ConfigurationAdministrative TemplatesMSS (Legacy)MSS: (KeepAliveTime) How often keep-alive packets are sent in milliseconds
(2) REG: HKEY_LOCAL_MACHINESystemCurrentControlSetServicesTcpipParametersKeepAliveTime
CCSS Severity: | CCSS Metrics: |
CCSS Score : 7.4 | Attack Vector: NETWORK |
Exploit Score: 2.2 | Attack Complexity: HIGH |
Impact Score: 5.2 | Privileges Required: NONE |
Severity: HIGH | User Interaction: NONE |
Vector: AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H | Scope: UNCHANGED |
| Confidentiality: HIGH |
| Integrity: NONE |
| Availability: HIGH |
| |
References: Resource Id | Reference |
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SCAP Repo OVAL Definition | oval:org.secpod.oval:def:35000 |